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Jan 5, 2001 11:58 PM
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Mail From: (email redacted)
I am still ocasionally getting knocks after a month of tuning. I realized
that it could be the boost controller that ran inconsistent. Most of the
time, it works fine, but once in a while the boost controller let the boost
bump up to 214 kpa before releasing the pressure. Did any of you experience
this? Any help will be greatly appreciate.
info:
1.6L, LINK, 18-Oct-2000 chip, 5 degree base timing (with -1 ignition trim
for this datalog)
-----------------------------------------------
001808 4568 S 80 65 0 674 20 42 n 0 29.0
1.6b V=14.2 T= 92 S= 0 -- -- -- -- -- LC KC= 0
001809 4452 S 98 76 0 767 22 42 n 0 24.8
001810 4420 S 108 80 0 873 25 42 0 22.5
001811 4440 S 120 79 * 0 929 27 w 42 0 19.8
001812 4458 S 130 77 * 44 1081 32 w 42 0 17.8
001813 4474 L 143 78 * 44 1146 34 w 42 0 14.5
001814 4500 L 153 6 78 * 44 1329 39 w 42 1 12.0
001815 4505 L 168 80 * 44 1468 44 w 42 1 8.0
001816 4552 L 179 83 * 44 1672 50 w 42 3 5.0
001817 4548 L 191 83 * 44 1726 52 w 42 2 4.5
001818 4611 L 195 84 * 44 1707 52 w 42 1 4.3
001819 4588 L 196 86 c 44 1744 53 w 42 0 4.3
001820 4638 L 197 87 c 45 1744 53 w 42 0 3.8
001821 4686 L 195 6 86 c 46 1744 54 w 42 0 4.3
001822 4645 L 195 87 c 47 1707 52 w 42 0 4.3
001823 4725 L 195 87 c 48 1726 54 w 42 0 3.8
001824 4711 L 196 87 c 49 1726 54 w 42 0 3.8
1.6b V=14.1 T= 92 S= 0 -- -- -- -- -- LC KC= 0
001825 4763 L 195 87 c 49 1726 54 w 42 0 3.8
001826 4760 L 197 87 c 50 1745 55 w 42 0 3.8
001827 4807 L 197 88 c 51 1745 55 w 42 0 3.8
001828 4796 L 197 88 c 52 1745 55 w 42 0 3.8
001829 4844 L 197 87 c 52 1763 56 w 42 0 4.3
001830 4870 L 198 88 c 53 1763 57 w 42 0 4.3
001831 4892 L 198 88 c 54 1763 57 w 42 0 4.3
001832 4922 L 198 88 c 54 1763 57 w 42 0 4.5
001833 4953 L 198 89 c 55 1745 57 w 42 0 4.5
001834 4963 L 198 88 c 55 1745 57 w 42 0 4.5
001835 4993 L 197 87 c 56 1745 58 w 42 0 4.8
001836 5003 L 199 88 c 56 1763 58 w 42 0 4.5
001837 5021 L 199 88 c 57 1763 59 w 42 2 4.8
001838 5083 L 200 89 c 58 1745 59 w 42 2 4.8
001839 5074 L 199 88 c 59 1782 60 w 42 1 4.8
001840 5110 L 201 88 c 59 1800 61 w 42 1 4.8
1.6b V=14.1 T= 92 S= 0 -- -- -- -- -- LC KC= 0
001841 5135 L 202 4 88 c 60 1782 61 w 42 1 4.8
001842 5159 L 202 88 c 60 1782 61 w 42 1 4.8
001843 5175 L 203 88 c 60 1800 62 w 42 2 4.8
001844 5219 L 203 88 c 60 1782 62 w 42 2 5.0
001845 5174 L 202 88 c 61 1800 62 w 42 24 4.8
001846 5319 L 212 87 c 61 1893 67 w 42 10 3.5
001847 5283 L 214 88 c 30 1930 67 w 42 167 3.5
001848 5302 L 209 88 c 60 1837 64 w 42 57 3.0
001849 5345 L 198 89 c 60 1782 63 w 42 28 3.5
001850 5319 L 194 89 c 61 1689 59 w 42 10 5.3
001851 5362 L 191 88 c 62 1629 58 w 42 5 5.8
001852 5385 L 190 88 c 63 1621 58 w 42 4 6.0
001853 5428 L 188 87 c 65 1640 59 w 42 2 6.5
001854 5413 L 189 88 * 44 1647 59 w 42 2 6.3
001855 5488 L 189 87 * 44 1650 60 w 42 2 6.3
001856 5454 L 189 87 * 44 1670 60 w 42 2 6.3
Initial zone map
26 74 74 215 50 171 39 22 17 92 22 34 34 30 59 42
12 0 42 41 12 252 13 14 14 8 72 77 80 84 86 88
65 65 66 74 67 76 67 68 73 73 79 77 72 76 75 77
65 65 65 73 70 76 70 70 74 85 90 84 89 80 76 77
79 79 80 77 75 82 80 79 84 96 94 96 96 91 89 88
111 111 111 111 98 85 88 86 93 106 111 111 105 114 114 117
118 118 118 118 112 115 111 96 113 117 117 120 119 123 125 125
118 118 118 118 120 125 127 121 126 125 123 128 128 128 128 128
0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75
20 60 60 124 140 140 140 144 144 144 150 156 162 168 174 180
20 40 60 120 136 136 136 140 140 140 140 140 140 140 140 140
20 20 70 96 108 110 108 108 102 98 102 106 116 122 132 132
20 20 50 70 72 74 72 68 66 64 60 68 76 82 86 90
20 20 20 60 66 64 58 40 28 18 37 32 44 46 54 64
20 20 20 28 36 31 29 20 20 20 14 16 10 22 28 34
0 198 13 50 80 203 203 203 203 203 203 203 203 203 203 203
ATM = 102 MK-2 18-OCT-00
Mail From: (email redacted)
I am still ocasionally getting knocks after a month of tuning. I realized
that it could be the boost controller that ran inconsistent. Most of the
time, it works fine, but once in a while the boost controller let the boost
bump up to 214 kpa before releasing the pressure. Did any of you experience
this? Any help will be greatly appreciate.
info:
1.6L, LINK, 18-Oct-2000 chip, 5 degree base timing (with -1 ignition trim
for this datalog)
-----------------------------------------------
001808 4568 S 80 65 0 674 20 42 n 0 29.0
1.6b V=14.2 T= 92 S= 0 -- -- -- -- -- LC KC= 0
001809 4452 S 98 76 0 767 22 42 n 0 24.8
001810 4420 S 108 80 0 873 25 42 0 22.5
001811 4440 S 120 79 * 0 929 27 w 42 0 19.8
001812 4458 S 130 77 * 44 1081 32 w 42 0 17.8
001813 4474 L 143 78 * 44 1146 34 w 42 0 14.5
001814 4500 L 153 6 78 * 44 1329 39 w 42 1 12.0
001815 4505 L 168 80 * 44 1468 44 w 42 1 8.0
001816 4552 L 179 83 * 44 1672 50 w 42 3 5.0
001817 4548 L 191 83 * 44 1726 52 w 42 2 4.5
001818 4611 L 195 84 * 44 1707 52 w 42 1 4.3
001819 4588 L 196 86 c 44 1744 53 w 42 0 4.3
001820 4638 L 197 87 c 45 1744 53 w 42 0 3.8
001821 4686 L 195 6 86 c 46 1744 54 w 42 0 4.3
001822 4645 L 195 87 c 47 1707 52 w 42 0 4.3
001823 4725 L 195 87 c 48 1726 54 w 42 0 3.8
001824 4711 L 196 87 c 49 1726 54 w 42 0 3.8
1.6b V=14.1 T= 92 S= 0 -- -- -- -- -- LC KC= 0
001825 4763 L 195 87 c 49 1726 54 w 42 0 3.8
001826 4760 L 197 87 c 50 1745 55 w 42 0 3.8
001827 4807 L 197 88 c 51 1745 55 w 42 0 3.8
001828 4796 L 197 88 c 52 1745 55 w 42 0 3.8
001829 4844 L 197 87 c 52 1763 56 w 42 0 4.3
001830 4870 L 198 88 c 53 1763 57 w 42 0 4.3
001831 4892 L 198 88 c 54 1763 57 w 42 0 4.3
001832 4922 L 198 88 c 54 1763 57 w 42 0 4.5
001833 4953 L 198 89 c 55 1745 57 w 42 0 4.5
001834 4963 L 198 88 c 55 1745 57 w 42 0 4.5
001835 4993 L 197 87 c 56 1745 58 w 42 0 4.8
001836 5003 L 199 88 c 56 1763 58 w 42 0 4.5
001837 5021 L 199 88 c 57 1763 59 w 42 2 4.8
001838 5083 L 200 89 c 58 1745 59 w 42 2 4.8
001839 5074 L 199 88 c 59 1782 60 w 42 1 4.8
001840 5110 L 201 88 c 59 1800 61 w 42 1 4.8
1.6b V=14.1 T= 92 S= 0 -- -- -- -- -- LC KC= 0
001841 5135 L 202 4 88 c 60 1782 61 w 42 1 4.8
001842 5159 L 202 88 c 60 1782 61 w 42 1 4.8
001843 5175 L 203 88 c 60 1800 62 w 42 2 4.8
001844 5219 L 203 88 c 60 1782 62 w 42 2 5.0
001845 5174 L 202 88 c 61 1800 62 w 42 24 4.8
001846 5319 L 212 87 c 61 1893 67 w 42 10 3.5
001847 5283 L 214 88 c 30 1930 67 w 42 167 3.5
001848 5302 L 209 88 c 60 1837 64 w 42 57 3.0
001849 5345 L 198 89 c 60 1782 63 w 42 28 3.5
001850 5319 L 194 89 c 61 1689 59 w 42 10 5.3
001851 5362 L 191 88 c 62 1629 58 w 42 5 5.8
001852 5385 L 190 88 c 63 1621 58 w 42 4 6.0
001853 5428 L 188 87 c 65 1640 59 w 42 2 6.5
001854 5413 L 189 88 * 44 1647 59 w 42 2 6.3
001855 5488 L 189 87 * 44 1650 60 w 42 2 6.3
001856 5454 L 189 87 * 44 1670 60 w 42 2 6.3
Initial zone map
26 74 74 215 50 171 39 22 17 92 22 34 34 30 59 42
12 0 42 41 12 252 13 14 14 8 72 77 80 84 86 88
65 65 66 74 67 76 67 68 73 73 79 77 72 76 75 77
65 65 65 73 70 76 70 70 74 85 90 84 89 80 76 77
79 79 80 77 75 82 80 79 84 96 94 96 96 91 89 88
111 111 111 111 98 85 88 86 93 106 111 111 105 114 114 117
118 118 118 118 112 115 111 96 113 117 117 120 119 123 125 125
118 118 118 118 120 125 127 121 126 125 123 128 128 128 128 128
0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75
20 60 60 124 140 140 140 144 144 144 150 156 162 168 174 180
20 40 60 120 136 136 136 140 140 140 140 140 140 140 140 140
20 20 70 96 108 110 108 108 102 98 102 106 116 122 132 132
20 20 50 70 72 74 72 68 66 64 60 68 76 82 86 90
20 20 20 60 66 64 58 40 28 18 37 32 44 46 54 64
20 20 20 28 36 31 29 20 20 20 14 16 10 22 28 34
0 198 13 50 80 203 203 203 203 203 203 203 203 203 203 203
ATM = 102 MK-2 18-OCT-00
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#2
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mailbot
Mail List Archive Bot
., Online, USA
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Topic Creator (OP)
Jan 6, 2001 02:33 AM
Joined 15 years ago
227,243 Posts
|
This read-only message was archived from a public mail list.
Mail From: "Ray Ayala" <(email redacted)>
This is a really classic datalog. Prior to line 1845 the rpm is rising
steadily and the WG duty cycle is increasing smoothly but gradually to hold
the boost reasonably close to 15 psi. Then suddenly at line 1845 the rpm
dips a bit (much more than typical statistical deviation), and in the next
line the boost has made a sudden jump even though the WG control signal was
smooth and steady. In line 1847 we see the WG control signal drop
dramatically in response to the sudden rise in boost (as it should). But
what caused the sudden jump in boost? The drop in rpm immediatedly prior to
the increase in boost points to an ignition misfire that allowed a shot of
unburnt air-fuel mixture to enter the exhaust manifold. When that fuel was
subsequently ignited by the next hot exhaust pulse it gave the turbo big
shove that pushed the boost up an extra 10 psi for just a moment.
----- Original Message -----
From: <(email redacted)>
> I am still ocasionally getting knocks after a month of tuning. I realized
> that it could be the boost controller that ran inconsistent. Most of the
> time, it works fine, but once in a while the boost controller let the
boost
> bump up to 214 kpa before releasing the pressure. Did any of you
experience
> this? Any help will be greatly appreciate.
>
> info:
> 1.6L, LINK, 18-Oct-2000 chip, 5 degree base timing (with -1 ignition trim
> for this datalog)
>
> -----------------------------------------------
>
> 001841 5135 L 202 4 88 c 60 1782 61 w 42 1 4.8
>
> 001842 5159 L 202 88 c 60 1782 61 w 42 1 4.8
>
> 001843 5175 L 203 88 c 60 1800 62 w 42 2 4.8
>
> 001844 5219 L 203 88 c 60 1782 62 w 42 2 5.0
>
> 001845 5174 L 202 88 c 61 1800 62 w 42 24 4.8
>
> 001846 5319 L 212 87 c 61 1893 67 w 42 10 3.5
>
> 001847 5283 L 214 88 c 30 1930 67 w 42 167 3.5
>
> 001848 5302 L 209 88 c 60 1837 64 w 42 57 3.0
>
> 001849 5345 L 198 89 c 60 1782 63 w 42 28 3.5
>
> 001850 5319 L 194 89 c 61 1689 59 w 42 10 5.3
Mail From: "Ray Ayala" <(email redacted)>
This is a really classic datalog. Prior to line 1845 the rpm is rising
steadily and the WG duty cycle is increasing smoothly but gradually to hold
the boost reasonably close to 15 psi. Then suddenly at line 1845 the rpm
dips a bit (much more than typical statistical deviation), and in the next
line the boost has made a sudden jump even though the WG control signal was
smooth and steady. In line 1847 we see the WG control signal drop
dramatically in response to the sudden rise in boost (as it should). But
what caused the sudden jump in boost? The drop in rpm immediatedly prior to
the increase in boost points to an ignition misfire that allowed a shot of
unburnt air-fuel mixture to enter the exhaust manifold. When that fuel was
subsequently ignited by the next hot exhaust pulse it gave the turbo big
shove that pushed the boost up an extra 10 psi for just a moment.
----- Original Message -----
From: <(email redacted)>
> I am still ocasionally getting knocks after a month of tuning. I realized
> that it could be the boost controller that ran inconsistent. Most of the
> time, it works fine, but once in a while the boost controller let the
boost
> bump up to 214 kpa before releasing the pressure. Did any of you
experience
> this? Any help will be greatly appreciate.
>
> info:
> 1.6L, LINK, 18-Oct-2000 chip, 5 degree base timing (with -1 ignition trim
> for this datalog)
>
> -----------------------------------------------
>
> 001841 5135 L 202 4 88 c 60 1782 61 w 42 1 4.8
>
> 001842 5159 L 202 88 c 60 1782 61 w 42 1 4.8
>
> 001843 5175 L 203 88 c 60 1800 62 w 42 2 4.8
>
> 001844 5219 L 203 88 c 60 1782 62 w 42 2 5.0
>
> 001845 5174 L 202 88 c 61 1800 62 w 42 24 4.8
>
> 001846 5319 L 212 87 c 61 1893 67 w 42 10 3.5
>
> 001847 5283 L 214 88 c 30 1930 67 w 42 167 3.5
>
> 001848 5302 L 209 88 c 60 1837 64 w 42 57 3.0
>
> 001849 5345 L 198 89 c 60 1782 63 w 42 28 3.5
>
> 001850 5319 L 194 89 c 61 1689 59 w 42 10 5.3
|
LINK
#3
|
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mailbot
Mail List Archive Bot
., Online, USA
|
Topic Creator (OP)
Jan 6, 2001 06:58 AM
Joined 15 years ago
227,243 Posts
|
This read-only message was archived from a public mail list.
Mail From: "WONG,CLIVE (A-PaloAlto,ex1)" <(email redacted)>
Hi Ray,
Thanks for the explanation. But I am already using ZFR7F-11 with 0.30 gap,
4K miles. My wires are Magnacor 8.5mm, around 20K miles. I guess too much
I could do to prevent this misfire, huh? How often do you change your plugs
and wires (I know most of you don't have much problems with Racing Beat and
Magnacor)?
Thnaks,
Clive
-----Original Message-----
From: Ray Ayala [mailto:(email redacted)]
Sent: Saturday, January 06, 2001 12:34 AM
To: (email redacted)
Subject: Re: LINK
This is a really classic datalog. Prior to line 1845 the rpm is rising
steadily and the WG duty cycle is increasing smoothly but gradually to hold
the boost reasonably close to 15 psi. Then suddenly at line 1845 the rpm
dips a bit (much more than typical statistical deviation), and in the next
line the boost has made a sudden jump even though the WG control signal was
smooth and steady. In line 1847 we see the WG control signal drop
dramatically in response to the sudden rise in boost (as it should). But
what caused the sudden jump in boost? The drop in rpm immediatedly prior to
the increase in boost points to an ignition misfire that allowed a shot of
unburnt air-fuel mixture to enter the exhaust manifold. When that fuel was
subsequently ignited by the next hot exhaust pulse it gave the turbo big
shove that pushed the boost up an extra 10 psi for just a moment.
----- Original Message -----
From: <(email redacted)>
> I am still ocasionally getting knocks after a month of tuning. I realized
> that it could be the boost controller that ran inconsistent. Most of the
> time, it works fine, but once in a while the boost controller let the
boost
> bump up to 214 kpa before releasing the pressure. Did any of you
experience
> this? Any help will be greatly appreciate.
>
> info:
> 1.6L, LINK, 18-Oct-2000 chip, 5 degree base timing (with -1 ignition trim
> for this datalog)
>
> -----------------------------------------------
>
> 001841 5135 L 202 4 88 c 60 1782 61 w 42 1 4.8
>
> 001842 5159 L 202 88 c 60 1782 61 w 42 1 4.8
>
> 001843 5175 L 203 88 c 60 1800 62 w 42 2 4.8
>
> 001844 5219 L 203 88 c 60 1782 62 w 42 2 5.0
>
> 001845 5174 L 202 88 c 61 1800 62 w 42 24 4.8
>
> 001846 5319 L 212 87 c 61 1893 67 w 42 10 3.5
>
> 001847 5283 L 214 88 c 30 1930 67 w 42 167 3.5
>
> 001848 5302 L 209 88 c 60 1837 64 w 42 57 3.0
>
> 001849 5345 L 198 89 c 60 1782 63 w 42 28 3.5
>
> 001850 5319 L 194 89 c 61 1689 59 w 42 10 5.3
Mail From: "WONG,CLIVE (A-PaloAlto,ex1)" <(email redacted)>
Hi Ray,
Thanks for the explanation. But I am already using ZFR7F-11 with 0.30 gap,
4K miles. My wires are Magnacor 8.5mm, around 20K miles. I guess too much
I could do to prevent this misfire, huh? How often do you change your plugs
and wires (I know most of you don't have much problems with Racing Beat and
Magnacor)?
Thnaks,
Clive
-----Original Message-----
From: Ray Ayala [mailto:(email redacted)]
Sent: Saturday, January 06, 2001 12:34 AM
To: (email redacted)
Subject: Re: LINK
This is a really classic datalog. Prior to line 1845 the rpm is rising
steadily and the WG duty cycle is increasing smoothly but gradually to hold
the boost reasonably close to 15 psi. Then suddenly at line 1845 the rpm
dips a bit (much more than typical statistical deviation), and in the next
line the boost has made a sudden jump even though the WG control signal was
smooth and steady. In line 1847 we see the WG control signal drop
dramatically in response to the sudden rise in boost (as it should). But
what caused the sudden jump in boost? The drop in rpm immediatedly prior to
the increase in boost points to an ignition misfire that allowed a shot of
unburnt air-fuel mixture to enter the exhaust manifold. When that fuel was
subsequently ignited by the next hot exhaust pulse it gave the turbo big
shove that pushed the boost up an extra 10 psi for just a moment.
----- Original Message -----
From: <(email redacted)>
> I am still ocasionally getting knocks after a month of tuning. I realized
> that it could be the boost controller that ran inconsistent. Most of the
> time, it works fine, but once in a while the boost controller let the
boost
> bump up to 214 kpa before releasing the pressure. Did any of you
experience
> this? Any help will be greatly appreciate.
>
> info:
> 1.6L, LINK, 18-Oct-2000 chip, 5 degree base timing (with -1 ignition trim
> for this datalog)
>
> -----------------------------------------------
>
> 001841 5135 L 202 4 88 c 60 1782 61 w 42 1 4.8
>
> 001842 5159 L 202 88 c 60 1782 61 w 42 1 4.8
>
> 001843 5175 L 203 88 c 60 1800 62 w 42 2 4.8
>
> 001844 5219 L 203 88 c 60 1782 62 w 42 2 5.0
>
> 001845 5174 L 202 88 c 61 1800 62 w 42 24 4.8
>
> 001846 5319 L 212 87 c 61 1893 67 w 42 10 3.5
>
> 001847 5283 L 214 88 c 30 1930 67 w 42 167 3.5
>
> 001848 5302 L 209 88 c 60 1837 64 w 42 57 3.0
>
> 001849 5345 L 198 89 c 60 1782 63 w 42 28 3.5
>
> 001850 5319 L 194 89 c 61 1689 59 w 42 10 5.3
|
LINK
#4
|
|
|
mailbot
Mail List Archive Bot
., Online, USA
|
Topic Creator (OP)
Jan 6, 2001 07:26 AM
Joined 15 years ago
227,243 Posts
|
This read-only message was archived from a public mail list.
Mail From: (email redacted)
Clive,
Not saying that plugs & wires are the issue, but I have known many people who
have switched plugs and for whatever reason, misfires magically disappear. The
problem is that you might be disguising some other problem with frequent
replacement of plugs. I have also heard of people who have had problems with
Magencors and have heard of one respected Dyno shop, that refuses to use them,
for their boosted high horsepower applications. Again, others do swear by them.
You should be able to run w/o the perceived type of misfire Ray has
hypothesized/observed from the data log.
FWIW - Dan
"WONG,CLIVE (A-PaloAlto,ex1)" <(email redacted)> on 01/06/2001 07:58:06 AM
Please respond to "WONG,CLIVE (A-PaloAlto,ex1)" <(email redacted)>
To: "'Ray Ayala'" <(email redacted)>, (email redacted)
cc: (bcc: Dan W Thorpe/WLGORE)
Subject: RE: LINK
Hi Ray,
Thanks for the explanation. But I am already using ZFR7F-11 with 0.30 gap,
4K miles. My wires are Magnacor 8.5mm, around 20K miles. I guess too much
I could do to prevent this misfire, huh? How often do you change your plugs
and wires (I know most of you don't have much problems with Racing Beat and
Magnacor)?
Thnaks,
Clive
-----Original Message-----
From: Ray Ayala [mailto:(email redacted)]
Sent: Saturday, January 06, 2001 12:34 AM
To: (email redacted)
Subject: Re: LINK
This is a really classic datalog. Prior to line 1845 the rpm is rising
steadily and the WG duty cycle is increasing smoothly but gradually to hold
the boost reasonably close to 15 psi. Then suddenly at line 1845 the rpm
dips a bit (much more than typical statistical deviation), and in the next
line the boost has made a sudden jump even though the WG control signal was
smooth and steady. In line 1847 we see the WG control signal drop
dramatically in response to the sudden rise in boost (as it should). But
what caused the sudden jump in boost? The drop in rpm immediatedly prior to
the increase in boost points to an ignition misfire that allowed a shot of
unburnt air-fuel mixture to enter the exhaust manifold. When that fuel was
subsequently ignited by the next hot exhaust pulse it gave the turbo big
shove that pushed the boost up an extra 10 psi for just a moment.
----- Original Message -----
From: <(email redacted)>
> I am still ocasionally getting knocks after a month of tuning. I realized
> that it could be the boost controller that ran inconsistent. Most of the
> time, it works fine, but once in a while the boost controller let the
boost
> bump up to 214 kpa before releasing the pressure. Did any of you
experience
> this? Any help will be greatly appreciate.
>
> info:
> 1.6L, LINK, 18-Oct-2000 chip, 5 degree base timing (with -1 ignition trim
> for this datalog)
>
> -----------------------------------------------
>
> 001841 5135 L 202 4 88 c 60 1782 61 w 42 1 4.8
>
> 001842 5159 L 202 88 c 60 1782 61 w 42 1 4.8
>
> 001843 5175 L 203 88 c 60 1800 62 w 42 2 4.8
>
> 001844 5219 L 203 88 c 60 1782 62 w 42 2 5.0
>
> 001845 5174 L 202 88 c 61 1800 62 w 42 24 4.8
>
> 001846 5319 L 212 87 c 61 1893 67 w 42 10 3.5
>
> 001847 5283 L 214 88 c 30 1930 67 w 42 167 3.5
>
> 001848 5302 L 209 88 c 60 1837 64 w 42 57 3.0
>
> 001849 5345 L 198 89 c 60 1782 63 w 42 28 3.5
>
> 001850 5319 L 194 89 c 61 1689 59 w 42 10 5.3
Mail From: (email redacted)
Clive,
Not saying that plugs & wires are the issue, but I have known many people who
have switched plugs and for whatever reason, misfires magically disappear. The
problem is that you might be disguising some other problem with frequent
replacement of plugs. I have also heard of people who have had problems with
Magencors and have heard of one respected Dyno shop, that refuses to use them,
for their boosted high horsepower applications. Again, others do swear by them.
You should be able to run w/o the perceived type of misfire Ray has
hypothesized/observed from the data log.
FWIW - Dan
"WONG,CLIVE (A-PaloAlto,ex1)" <(email redacted)> on 01/06/2001 07:58:06 AM
Please respond to "WONG,CLIVE (A-PaloAlto,ex1)" <(email redacted)>
To: "'Ray Ayala'" <(email redacted)>, (email redacted)
cc: (bcc: Dan W Thorpe/WLGORE)
Subject: RE: LINK
Hi Ray,
Thanks for the explanation. But I am already using ZFR7F-11 with 0.30 gap,
4K miles. My wires are Magnacor 8.5mm, around 20K miles. I guess too much
I could do to prevent this misfire, huh? How often do you change your plugs
and wires (I know most of you don't have much problems with Racing Beat and
Magnacor)?
Thnaks,
Clive
-----Original Message-----
From: Ray Ayala [mailto:(email redacted)]
Sent: Saturday, January 06, 2001 12:34 AM
To: (email redacted)
Subject: Re: LINK
This is a really classic datalog. Prior to line 1845 the rpm is rising
steadily and the WG duty cycle is increasing smoothly but gradually to hold
the boost reasonably close to 15 psi. Then suddenly at line 1845 the rpm
dips a bit (much more than typical statistical deviation), and in the next
line the boost has made a sudden jump even though the WG control signal was
smooth and steady. In line 1847 we see the WG control signal drop
dramatically in response to the sudden rise in boost (as it should). But
what caused the sudden jump in boost? The drop in rpm immediatedly prior to
the increase in boost points to an ignition misfire that allowed a shot of
unburnt air-fuel mixture to enter the exhaust manifold. When that fuel was
subsequently ignited by the next hot exhaust pulse it gave the turbo big
shove that pushed the boost up an extra 10 psi for just a moment.
----- Original Message -----
From: <(email redacted)>
> I am still ocasionally getting knocks after a month of tuning. I realized
> that it could be the boost controller that ran inconsistent. Most of the
> time, it works fine, but once in a while the boost controller let the
boost
> bump up to 214 kpa before releasing the pressure. Did any of you
experience
> this? Any help will be greatly appreciate.
>
> info:
> 1.6L, LINK, 18-Oct-2000 chip, 5 degree base timing (with -1 ignition trim
> for this datalog)
>
> -----------------------------------------------
>
> 001841 5135 L 202 4 88 c 60 1782 61 w 42 1 4.8
>
> 001842 5159 L 202 88 c 60 1782 61 w 42 1 4.8
>
> 001843 5175 L 203 88 c 60 1800 62 w 42 2 4.8
>
> 001844 5219 L 203 88 c 60 1782 62 w 42 2 5.0
>
> 001845 5174 L 202 88 c 61 1800 62 w 42 24 4.8
>
> 001846 5319 L 212 87 c 61 1893 67 w 42 10 3.5
>
> 001847 5283 L 214 88 c 30 1930 67 w 42 167 3.5
>
> 001848 5302 L 209 88 c 60 1837 64 w 42 57 3.0
>
> 001849 5345 L 198 89 c 60 1782 63 w 42 28 3.5
>
> 001850 5319 L 194 89 c 61 1689 59 w 42 10 5.3
|
LINK
#5
|
|
|
mailbot
Mail List Archive Bot
., Online, USA
|
Topic Creator (OP)
Jan 6, 2001 08:26 AM
Joined 15 years ago
227,243 Posts
|
This read-only message was archived from a public mail list.
Mail From: "Ralph W. Gould" <(email redacted)>
I have been severely chastised by one or two individuals for suggesting that
Magnecor plug
wires could be suspect. Politically incorrect
or not , you should at least TRY another brand in
the interest of eliminating the misfire.
As others have stated, as well as my dyno shop guy, Magnecores can be
problematic with high boost applications. Bad batch? Who knows? NGK blues
are a good troubleshooting starting point.
Ralph
Original Message -----
From: "WONG,CLIVE (A-PaloAlto,ex1)" <(email redacted)>
To: "'Ray Ayala'" <(email redacted)>; <(email redacted)>
Sent: Saturday, January 06, 2001 7:58 AM
Subject: RE: LINK
>
> Hi Ray,
>
> Thanks for the explanation. But I am already using ZFR7F-11 with 0.30
gap,
> 4K miles. My wires are Magnacor 8.5mm, around 20K miles. I guess too
much
> I could do to prevent this misfire, huh? How often do you change your
plugs
> and wires (I know most of you don't have much problems with Racing Beat
and
> Magnacor)?
>
> Thnaks,
> Clive
>
> -----Original Message-----
> From: Ray Ayala [mailto:(email redacted)]
> Sent: Saturday, January 06, 2001 12:34 AM
> To: (email redacted)
> Subject: Re: LINK
>
>
>
> This is a really classic datalog. Prior to line 1845 the rpm is rising
> steadily and the WG duty cycle is increasing smoothly but gradually to
hold
> the boost reasonably close to 15 psi. Then suddenly at line 1845 the rpm
> dips a bit (much more than typical statistical deviation), and in the next
> line the boost has made a sudden jump even though the WG control signal
was
> smooth and steady. In line 1847 we see the WG control signal drop
> dramatically in response to the sudden rise in boost (as it should). But
> what caused the sudden jump in boost? The drop in rpm immediatedly prior
to
> the increase in boost points to an ignition misfire that allowed a shot of
> unburnt air-fuel mixture to enter the exhaust manifold. When that fuel
was
> subsequently ignited by the next hot exhaust pulse it gave the turbo big
> shove that pushed the boost up an extra 10 psi for just a moment.
>
> ----- Original Message -----
> From: <(email redacted)>
>
> > I am still ocasionally getting knocks after a month of tuning. I
realized
> > that it could be the boost controller that ran inconsistent. Most of
the
> > time, it works fine, but once in a while the boost controller let the
> boost
> > bump up to 214 kpa before releasing the pressure. Did any of you
> experience
> > this? Any help will be greatly appreciate.
> >
> > info:
> > 1.6L, LINK, 18-Oct-2000 chip, 5 degree base timing (with -1 ignition
trim
> > for this datalog)
> >
> > -----------------------------------------------
> >
> > 001841 5135 L 202 4 88 c 60 1782 61 w 42 1 4.8
> >
> > 001842 5159 L 202 88 c 60 1782 61 w 42 1 4.8
> >
> > 001843 5175 L 203 88 c 60 1800 62 w 42 2 4.8
> >
> > 001844 5219 L 203 88 c 60 1782 62 w 42 2 5.0
> >
> > 001845 5174 L 202 88 c 61 1800 62 w 42 24 4.8
> >
> > 001846 5319 L 212 87 c 61 1893 67 w 42 10 3.5
> >
> > 001847 5283 L 214 88 c 30 1930 67 w 42 167 3.5
> >
> > 001848 5302 L 209 88 c 60 1837 64 w 42 57 3.0
> >
> > 001849 5345 L 198 89 c 60 1782 63 w 42 28 3.5
> >
> > 001850 5319 L 194 89 c 61 1689 59 w 42 10 5.3
>
Mail From: "Ralph W. Gould" <(email redacted)>
I have been severely chastised by one or two individuals for suggesting that
Magnecor plug
wires could be suspect. Politically incorrect
or not , you should at least TRY another brand in
the interest of eliminating the misfire.
As others have stated, as well as my dyno shop guy, Magnecores can be
problematic with high boost applications. Bad batch? Who knows? NGK blues
are a good troubleshooting starting point.
Ralph
Original Message -----
From: "WONG,CLIVE (A-PaloAlto,ex1)" <(email redacted)>
To: "'Ray Ayala'" <(email redacted)>; <(email redacted)>
Sent: Saturday, January 06, 2001 7:58 AM
Subject: RE: LINK
>
> Hi Ray,
>
> Thanks for the explanation. But I am already using ZFR7F-11 with 0.30
gap,
> 4K miles. My wires are Magnacor 8.5mm, around 20K miles. I guess too
much
> I could do to prevent this misfire, huh? How often do you change your
plugs
> and wires (I know most of you don't have much problems with Racing Beat
and
> Magnacor)?
>
> Thnaks,
> Clive
>
> -----Original Message-----
> From: Ray Ayala [mailto:(email redacted)]
> Sent: Saturday, January 06, 2001 12:34 AM
> To: (email redacted)
> Subject: Re: LINK
>
>
>
> This is a really classic datalog. Prior to line 1845 the rpm is rising
> steadily and the WG duty cycle is increasing smoothly but gradually to
hold
> the boost reasonably close to 15 psi. Then suddenly at line 1845 the rpm
> dips a bit (much more than typical statistical deviation), and in the next
> line the boost has made a sudden jump even though the WG control signal
was
> smooth and steady. In line 1847 we see the WG control signal drop
> dramatically in response to the sudden rise in boost (as it should). But
> what caused the sudden jump in boost? The drop in rpm immediatedly prior
to
> the increase in boost points to an ignition misfire that allowed a shot of
> unburnt air-fuel mixture to enter the exhaust manifold. When that fuel
was
> subsequently ignited by the next hot exhaust pulse it gave the turbo big
> shove that pushed the boost up an extra 10 psi for just a moment.
>
> ----- Original Message -----
> From: <(email redacted)>
>
> > I am still ocasionally getting knocks after a month of tuning. I
realized
> > that it could be the boost controller that ran inconsistent. Most of
the
> > time, it works fine, but once in a while the boost controller let the
> boost
> > bump up to 214 kpa before releasing the pressure. Did any of you
> experience
> > this? Any help will be greatly appreciate.
> >
> > info:
> > 1.6L, LINK, 18-Oct-2000 chip, 5 degree base timing (with -1 ignition
trim
> > for this datalog)
> >
> > -----------------------------------------------
> >
> > 001841 5135 L 202 4 88 c 60 1782 61 w 42 1 4.8
> >
> > 001842 5159 L 202 88 c 60 1782 61 w 42 1 4.8
> >
> > 001843 5175 L 203 88 c 60 1800 62 w 42 2 4.8
> >
> > 001844 5219 L 203 88 c 60 1782 62 w 42 2 5.0
> >
> > 001845 5174 L 202 88 c 61 1800 62 w 42 24 4.8
> >
> > 001846 5319 L 212 87 c 61 1893 67 w 42 10 3.5
> >
> > 001847 5283 L 214 88 c 30 1930 67 w 42 167 3.5
> >
> > 001848 5302 L 209 88 c 60 1837 64 w 42 57 3.0
> >
> > 001849 5345 L 198 89 c 60 1782 63 w 42 28 3.5
> >
> > 001850 5319 L 194 89 c 61 1689 59 w 42 10 5.3
>
|
LINK
#6
|
|
|
mailbot
Mail List Archive Bot
., Online, USA
|
Topic Creator (OP)
Jan 6, 2001 01:22 PM
Joined 15 years ago
227,243 Posts
|
This read-only message was archived from a public mail list.
Mail From: "Ray Ayala" <(email redacted)>
Although I've never used Magnecor's myself, there is enough anecdotal
evidence in the lists for me to suggest trying new wires also.
----- Original Message -----
From: "Ralph W. Gould" <(email redacted)>
To: "WONG,CLIVE (A-PaloAlto,ex1)" <(email redacted)>; "'Ray Ayala'"
<(email redacted)>; <(email redacted)>
Sent: Saturday, January 06, 2001 6:26 AM
Subject: Re: LINK
>
> I have been severely chastised by one or two individuals for suggesting
that
> Magnecor plug
> wires could be suspect. Politically incorrect
> or not , you should at least TRY another brand in
> the interest of eliminating the misfire.
> As others have stated, as well as my dyno shop guy, Magnecores can be
> problematic with high boost applications. Bad batch? Who knows? NGK blues
> are a good troubleshooting starting point.
>
> Ralph
>
>
>
>
>
> Original Message -----
> From: "WONG,CLIVE (A-PaloAlto,ex1)" <(email redacted)>
> To: "'Ray Ayala'" <(email redacted)>; <(email redacted)>
> Sent: Saturday, January 06, 2001 7:58 AM
> Subject: RE: LINK
>
>
> >
> > Hi Ray,
> >
> > Thanks for the explanation. But I am already using ZFR7F-11 with 0.30
> gap,
> > 4K miles. My wires are Magnacor 8.5mm, around 20K miles. I guess too
> much
> > I could do to prevent this misfire, huh? How often do you change your
> plugs
> > and wires (I know most of you don't have much problems with Racing Beat
> and
> > Magnacor)?
> >
> > Thnaks,
> > Clive
> >
> > -----Original Message-----
> > From: Ray Ayala [mailto:(email redacted)]
> > Sent: Saturday, January 06, 2001 12:34 AM
> > To: (email redacted)
> > Subject: Re: LINK
> >
> >
> >
> > This is a really classic datalog. Prior to line 1845 the rpm is rising
> > steadily and the WG duty cycle is increasing smoothly but gradually to
> hold
> > the boost reasonably close to 15 psi. Then suddenly at line 1845 the
rpm
> > dips a bit (much more than typical statistical deviation), and in the
next
> > line the boost has made a sudden jump even though the WG control signal
> was
> > smooth and steady. In line 1847 we see the WG control signal drop
> > dramatically in response to the sudden rise in boost (as it should).
But
> > what caused the sudden jump in boost? The drop in rpm immediatedly
prior
> to
> > the increase in boost points to an ignition misfire that allowed a shot
of
> > unburnt air-fuel mixture to enter the exhaust manifold. When that fuel
> was
> > subsequently ignited by the next hot exhaust pulse it gave the turbo big
> > shove that pushed the boost up an extra 10 psi for just a moment.
> >
> > ----- Original Message -----
> > From: <(email redacted)>
> >
> > > I am still ocasionally getting knocks after a month of tuning. I
> realized
> > > that it could be the boost controller that ran inconsistent. Most of
> the
> > > time, it works fine, but once in a while the boost controller let the
> > boost
> > > bump up to 214 kpa before releasing the pressure. Did any of you
> > experience
> > > this? Any help will be greatly appreciate.
> > >
> > > info:
> > > 1.6L, LINK, 18-Oct-2000 chip, 5 degree base timing (with -1 ignition
> trim
> > > for this datalog)
> > >
> > > -----------------------------------------------
> > >
> > > 001841 5135 L 202 4 88 c 60 1782 61 w 42 1 4.8
> > >
> > > 001842 5159 L 202 88 c 60 1782 61 w 42 1 4.8
> > >
> > > 001843 5175 L 203 88 c 60 1800 62 w 42 2 4.8
> > >
> > > 001844 5219 L 203 88 c 60 1782 62 w 42 2 5.0
> > >
> > > 001845 5174 L 202 88 c 61 1800 62 w 42 24 4.8
> > >
> > > 001846 5319 L 212 87 c 61 1893 67 w 42 10 3.5
> > >
> > > 001847 5283 L 214 88 c 30 1930 67 w 42 167 3.5
> > >
> > > 001848 5302 L 209 88 c 60 1837 64 w 42 57 3.0
> > >
> > > 001849 5345 L 198 89 c 60 1782 63 w 42 28 3.5
> > >
> > > 001850 5319 L 194 89 c 61 1689 59 w 42 10 5.3
> >
>
>
Mail From: "Ray Ayala" <(email redacted)>
Although I've never used Magnecor's myself, there is enough anecdotal
evidence in the lists for me to suggest trying new wires also.
----- Original Message -----
From: "Ralph W. Gould" <(email redacted)>
To: "WONG,CLIVE (A-PaloAlto,ex1)" <(email redacted)>; "'Ray Ayala'"
<(email redacted)>; <(email redacted)>
Sent: Saturday, January 06, 2001 6:26 AM
Subject: Re: LINK
>
> I have been severely chastised by one or two individuals for suggesting
that
> Magnecor plug
> wires could be suspect. Politically incorrect
> or not , you should at least TRY another brand in
> the interest of eliminating the misfire.
> As others have stated, as well as my dyno shop guy, Magnecores can be
> problematic with high boost applications. Bad batch? Who knows? NGK blues
> are a good troubleshooting starting point.
>
> Ralph
>
>
>
>
>
> Original Message -----
> From: "WONG,CLIVE (A-PaloAlto,ex1)" <(email redacted)>
> To: "'Ray Ayala'" <(email redacted)>; <(email redacted)>
> Sent: Saturday, January 06, 2001 7:58 AM
> Subject: RE: LINK
>
>
> >
> > Hi Ray,
> >
> > Thanks for the explanation. But I am already using ZFR7F-11 with 0.30
> gap,
> > 4K miles. My wires are Magnacor 8.5mm, around 20K miles. I guess too
> much
> > I could do to prevent this misfire, huh? How often do you change your
> plugs
> > and wires (I know most of you don't have much problems with Racing Beat
> and
> > Magnacor)?
> >
> > Thnaks,
> > Clive
> >
> > -----Original Message-----
> > From: Ray Ayala [mailto:(email redacted)]
> > Sent: Saturday, January 06, 2001 12:34 AM
> > To: (email redacted)
> > Subject: Re: LINK
> >
> >
> >
> > This is a really classic datalog. Prior to line 1845 the rpm is rising
> > steadily and the WG duty cycle is increasing smoothly but gradually to
> hold
> > the boost reasonably close to 15 psi. Then suddenly at line 1845 the
rpm
> > dips a bit (much more than typical statistical deviation), and in the
next
> > line the boost has made a sudden jump even though the WG control signal
> was
> > smooth and steady. In line 1847 we see the WG control signal drop
> > dramatically in response to the sudden rise in boost (as it should).
But
> > what caused the sudden jump in boost? The drop in rpm immediatedly
prior
> to
> > the increase in boost points to an ignition misfire that allowed a shot
of
> > unburnt air-fuel mixture to enter the exhaust manifold. When that fuel
> was
> > subsequently ignited by the next hot exhaust pulse it gave the turbo big
> > shove that pushed the boost up an extra 10 psi for just a moment.
> >
> > ----- Original Message -----
> > From: <(email redacted)>
> >
> > > I am still ocasionally getting knocks after a month of tuning. I
> realized
> > > that it could be the boost controller that ran inconsistent. Most of
> the
> > > time, it works fine, but once in a while the boost controller let the
> > boost
> > > bump up to 214 kpa before releasing the pressure. Did any of you
> > experience
> > > this? Any help will be greatly appreciate.
> > >
> > > info:
> > > 1.6L, LINK, 18-Oct-2000 chip, 5 degree base timing (with -1 ignition
> trim
> > > for this datalog)
> > >
> > > -----------------------------------------------
> > >
> > > 001841 5135 L 202 4 88 c 60 1782 61 w 42 1 4.8
> > >
> > > 001842 5159 L 202 88 c 60 1782 61 w 42 1 4.8
> > >
> > > 001843 5175 L 203 88 c 60 1800 62 w 42 2 4.8
> > >
> > > 001844 5219 L 203 88 c 60 1782 62 w 42 2 5.0
> > >
> > > 001845 5174 L 202 88 c 61 1800 62 w 42 24 4.8
> > >
> > > 001846 5319 L 212 87 c 61 1893 67 w 42 10 3.5
> > >
> > > 001847 5283 L 214 88 c 30 1930 67 w 42 167 3.5
> > >
> > > 001848 5302 L 209 88 c 60 1837 64 w 42 57 3.0
> > >
> > > 001849 5345 L 198 89 c 60 1782 63 w 42 28 3.5
> > >
> > > 001850 5319 L 194 89 c 61 1689 59 w 42 10 5.3
> >
>
>
|
LINK
#7
|
|
|
mailbot
Mail List Archive Bot
., Online, USA
|
Topic Creator (OP)
Jan 6, 2001 08:12 PM
Joined 15 years ago
227,243 Posts
|
This read-only message was archived from a public mail list.
Mail From: "Brian Goodwin" <(email redacted)>
As so many of us have learned over the years, the Miata is hard on plug
wires in stock form and it only gets worse as forced induction adds
additional heat. Back in my Autorotor days I found I got about six months
out of any set of wires before the misfires would begin. Did not matter if
the brand was NGK, Racing Beat Ultras, etc. I happen to run the Magnecores
now on the turbo car (I sell them so I have plenty on hand) and have gone
eight months with the current set but the next time I have a misfire the
wires will be the first suspect as always. I therefore concur with the
suggetion to try new wires.
BTW, for a while with the Autorotor I ran some wires from NAPA which
included a lifetime no-questions-asked guarantee. Every four months I just
walked in and got a new free set.
Brian Goodwin
Good-Win Racing
good-win-racing.com
94 Aerodyne & 99 Sport Package
>
> Although I've never used Magnecor's myself, there is enough anecdotal
> evidence in the lists for me to suggest trying new wires also.
>
> ----- Original Message -----
> From: "Ralph W. Gould" <(email redacted)>
> To: "WONG,CLIVE (A-PaloAlto,ex1)" <(email redacted)>; "'Ray Ayala'"
> <(email redacted)>; <(email redacted)>
> Sent: Saturday, January 06, 2001 6:26 AM
> Subject: Re: LINK
>
>
> >
> > I have been severely chastised by one or two individuals for suggesting
> that
> > Magnecor plug
> > wires could be suspect. Politically incorrect
> > or not , you should at least TRY another brand in
> > the interest of eliminating the misfire.
> > As others have stated, as well as my dyno shop guy, Magnecores can be
> > problematic with high boost applications. Bad batch? Who knows? NGK
blues
> > are a good troubleshooting starting point.
> >
> > Ralph
> >
> >
> >
> >
> >
> > Original Message -----
> > From: "WONG,CLIVE (A-PaloAlto,ex1)" <(email redacted)>
> > To: "'Ray Ayala'" <(email redacted)>; <(email redacted)>
> > Sent: Saturday, January 06, 2001 7:58 AM
> > Subject: RE: LINK
> >
> >
> > >
> > > Hi Ray,
> > >
> > > Thanks for the explanation. But I am already using ZFR7F-11 with 0.30
> > gap,
> > > 4K miles. My wires are Magnacor 8.5mm, around 20K miles. I guess too
> > much
> > > I could do to prevent this misfire, huh? How often do you change your
> > plugs
> > > and wires (I know most of you don't have much problems with Racing
Beat
> > and
> > > Magnacor)?
> > >
> > > Thnaks,
> > > Clive
> > >
> > > -----Original Message-----
> > > From: Ray Ayala [mailto:(email redacted)]
> > > Sent: Saturday, January 06, 2001 12:34 AM
> > > To: (email redacted)
> > > Subject: Re: LINK
> > >
> > >
> > >
> > > This is a really classic datalog. Prior to line 1845 the rpm is
rising
> > > steadily and the WG duty cycle is increasing smoothly but gradually to
> > hold
> > > the boost reasonably close to 15 psi. Then suddenly at line 1845 the
> rpm
> > > dips a bit (much more than typical statistical deviation), and in the
> next
> > > line the boost has made a sudden jump even though the WG control
signal
> > was
> > > smooth and steady. In line 1847 we see the WG control signal drop
> > > dramatically in response to the sudden rise in boost (as it should).
> But
> > > what caused the sudden jump in boost? The drop in rpm immediatedly
> prior
> > to
> > > the increase in boost points to an ignition misfire that allowed a
shot
> of
> > > unburnt air-fuel mixture to enter the exhaust manifold. When that
fuel
> > was
> > > subsequently ignited by the next hot exhaust pulse it gave the turbo
big
> > > shove that pushed the boost up an extra 10 psi for just a moment.
> > >
> > > ----- Original Message -----
> > > From: <(email redacted)>
> > >
> > > > I am still ocasionally getting knocks after a month of tuning. I
> > realized
> > > > that it could be the boost controller that ran inconsistent. Most
of
> > the
> > > > time, it works fine, but once in a while the boost controller let
the
> > > boost
> > > > bump up to 214 kpa before releasing the pressure. Did any of you
> > > experience
> > > > this? Any help will be greatly appreciate.
> > > >
> > > > info:
> > > > 1.6L, LINK, 18-Oct-2000 chip, 5 degree base timing (with -1 ignition
> > trim
> > > > for this datalog)
> > > >
> > > > -----------------------------------------------
> > > >
> > > > 001841 5135 L 202 4 88 c 60 1782 61 w 42 1 4.8
> > > >
> > > > 001842 5159 L 202 88 c 60 1782 61 w 42 1 4.8
> > > >
> > > > 001843 5175 L 203 88 c 60 1800 62 w 42 2 4.8
> > > >
> > > > 001844 5219 L 203 88 c 60 1782 62 w 42 2 5.0
> > > >
> > > > 001845 5174 L 202 88 c 61 1800 62 w 42 24 4.8
> > > >
> > > > 001846 5319 L 212 87 c 61 1893 67 w 42 10 3.5
> > > >
> > > > 001847 5283 L 214 88 c 30 1930 67 w 42 167 3.5
> > > >
> > > > 001848 5302 L 209 88 c 60 1837 64 w 42 57 3.0
> > > >
> > > > 001849 5345 L 198 89 c 60 1782 63 w 42 28 3.5
> > > >
> > > > 001850 5319 L 194 89 c 61 1689 59 w 42 10 5.3
> > >
> >
> >
>
>
Mail From: "Brian Goodwin" <(email redacted)>
As so many of us have learned over the years, the Miata is hard on plug
wires in stock form and it only gets worse as forced induction adds
additional heat. Back in my Autorotor days I found I got about six months
out of any set of wires before the misfires would begin. Did not matter if
the brand was NGK, Racing Beat Ultras, etc. I happen to run the Magnecores
now on the turbo car (I sell them so I have plenty on hand) and have gone
eight months with the current set but the next time I have a misfire the
wires will be the first suspect as always. I therefore concur with the
suggetion to try new wires.
BTW, for a while with the Autorotor I ran some wires from NAPA which
included a lifetime no-questions-asked guarantee. Every four months I just
walked in and got a new free set.
Brian Goodwin
Good-Win Racing
good-win-racing.com
94 Aerodyne & 99 Sport Package
>
> Although I've never used Magnecor's myself, there is enough anecdotal
> evidence in the lists for me to suggest trying new wires also.
>
> ----- Original Message -----
> From: "Ralph W. Gould" <(email redacted)>
> To: "WONG,CLIVE (A-PaloAlto,ex1)" <(email redacted)>; "'Ray Ayala'"
> <(email redacted)>; <(email redacted)>
> Sent: Saturday, January 06, 2001 6:26 AM
> Subject: Re: LINK
>
>
> >
> > I have been severely chastised by one or two individuals for suggesting
> that
> > Magnecor plug
> > wires could be suspect. Politically incorrect
> > or not , you should at least TRY another brand in
> > the interest of eliminating the misfire.
> > As others have stated, as well as my dyno shop guy, Magnecores can be
> > problematic with high boost applications. Bad batch? Who knows? NGK
blues
> > are a good troubleshooting starting point.
> >
> > Ralph
> >
> >
> >
> >
> >
> > Original Message -----
> > From: "WONG,CLIVE (A-PaloAlto,ex1)" <(email redacted)>
> > To: "'Ray Ayala'" <(email redacted)>; <(email redacted)>
> > Sent: Saturday, January 06, 2001 7:58 AM
> > Subject: RE: LINK
> >
> >
> > >
> > > Hi Ray,
> > >
> > > Thanks for the explanation. But I am already using ZFR7F-11 with 0.30
> > gap,
> > > 4K miles. My wires are Magnacor 8.5mm, around 20K miles. I guess too
> > much
> > > I could do to prevent this misfire, huh? How often do you change your
> > plugs
> > > and wires (I know most of you don't have much problems with Racing
Beat
> > and
> > > Magnacor)?
> > >
> > > Thnaks,
> > > Clive
> > >
> > > -----Original Message-----
> > > From: Ray Ayala [mailto:(email redacted)]
> > > Sent: Saturday, January 06, 2001 12:34 AM
> > > To: (email redacted)
> > > Subject: Re: LINK
> > >
> > >
> > >
> > > This is a really classic datalog. Prior to line 1845 the rpm is
rising
> > > steadily and the WG duty cycle is increasing smoothly but gradually to
> > hold
> > > the boost reasonably close to 15 psi. Then suddenly at line 1845 the
> rpm
> > > dips a bit (much more than typical statistical deviation), and in the
> next
> > > line the boost has made a sudden jump even though the WG control
signal
> > was
> > > smooth and steady. In line 1847 we see the WG control signal drop
> > > dramatically in response to the sudden rise in boost (as it should).
> But
> > > what caused the sudden jump in boost? The drop in rpm immediatedly
> prior
> > to
> > > the increase in boost points to an ignition misfire that allowed a
shot
> of
> > > unburnt air-fuel mixture to enter the exhaust manifold. When that
fuel
> > was
> > > subsequently ignited by the next hot exhaust pulse it gave the turbo
big
> > > shove that pushed the boost up an extra 10 psi for just a moment.
> > >
> > > ----- Original Message -----
> > > From: <(email redacted)>
> > >
> > > > I am still ocasionally getting knocks after a month of tuning. I
> > realized
> > > > that it could be the boost controller that ran inconsistent. Most
of
> > the
> > > > time, it works fine, but once in a while the boost controller let
the
> > > boost
> > > > bump up to 214 kpa before releasing the pressure. Did any of you
> > > experience
> > > > this? Any help will be greatly appreciate.
> > > >
> > > > info:
> > > > 1.6L, LINK, 18-Oct-2000 chip, 5 degree base timing (with -1 ignition
> > trim
> > > > for this datalog)
> > > >
> > > > -----------------------------------------------
> > > >
> > > > 001841 5135 L 202 4 88 c 60 1782 61 w 42 1 4.8
> > > >
> > > > 001842 5159 L 202 88 c 60 1782 61 w 42 1 4.8
> > > >
> > > > 001843 5175 L 203 88 c 60 1800 62 w 42 2 4.8
> > > >
> > > > 001844 5219 L 203 88 c 60 1782 62 w 42 2 5.0
> > > >
> > > > 001845 5174 L 202 88 c 61 1800 62 w 42 24 4.8
> > > >
> > > > 001846 5319 L 212 87 c 61 1893 67 w 42 10 3.5
> > > >
> > > > 001847 5283 L 214 88 c 30 1930 67 w 42 167 3.5
> > > >
> > > > 001848 5302 L 209 88 c 60 1837 64 w 42 57 3.0
> > > >
> > > > 001849 5345 L 198 89 c 60 1782 63 w 42 28 3.5
> > > >
> > > > 001850 5319 L 194 89 c 61 1689 59 w 42 10 5.3
> > >
> >
> >
>
>
|
LINK
#8
|
|
|
mailbot
Mail List Archive Bot
., Online, USA
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Topic Creator (OP)
Jan 8, 2001 10:21 AM
Joined 15 years ago
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This read-only message was archived from a public mail list.
Mail From: Bill Cardell <(email redacted)>
Basically, none of them are perfect. We sell a lot of magnecors and don't
have a lot of warrantee claims, but we do get some. I've even had occasional
problems on my own car. Tried some interesting carbon fibre plug wires last
year, think NOPI may be selling them now. So much RFI that I couldn't get a
Miata with a Link to run with them.
Bill Cardell
(email redacted)
Flyin' Miata
flyinmiata.com
200mphmiata.net
1-800-FLY-MX5S (orders only)
1-970-242-3800 (tech)
-----Original Message-----
From: Ralph W. Gould [mailto:(email redacted)]
Sent: Saturday, January 06, 2001 7:26 AM
To: WONG,CLIVE (A-PaloAlto,ex1); 'Ray Ayala'; (email redacted)
Subject: Re: LINK
I have been severely chastised by one or two individuals for suggesting that
Magnecor plug
wires could be suspect. Politically incorrect
or not , you should at least TRY another brand in
the interest of eliminating the misfire.
As others have stated, as well as my dyno shop guy, Magnecores can be
problematic with high boost applications. Bad batch? Who knows? NGK blues
are a good troubleshooting starting point.
Ralph
Original Message -----
From: "WONG,CLIVE (A-PaloAlto,ex1)" <(email redacted)>
To: "'Ray Ayala'" <(email redacted)>; <(email redacted)>
Sent: Saturday, January 06, 2001 7:58 AM
Subject: RE: LINK
>
> Hi Ray,
>
> Thanks for the explanation. But I am already using ZFR7F-11 with 0.30
gap,
> 4K miles. My wires are Magnacor 8.5mm, around 20K miles. I guess too
much
> I could do to prevent this misfire, huh? How often do you change your
plugs
> and wires (I know most of you don't have much problems with Racing Beat
and
> Magnacor)?
>
> Thnaks,
> Clive
>
> -----Original Message-----
> From: Ray Ayala [mailto:(email redacted)]
> Sent: Saturday, January 06, 2001 12:34 AM
> To: (email redacted)
> Subject: Re: LINK
>
>
>
> This is a really classic datalog. Prior to line 1845 the rpm is rising
> steadily and the WG duty cycle is increasing smoothly but gradually to
hold
> the boost reasonably close to 15 psi. Then suddenly at line 1845 the rpm
> dips a bit (much more than typical statistical deviation), and in the next
> line the boost has made a sudden jump even though the WG control signal
was
> smooth and steady. In line 1847 we see the WG control signal drop
> dramatically in response to the sudden rise in boost (as it should). But
> what caused the sudden jump in boost? The drop in rpm immediatedly prior
to
> the increase in boost points to an ignition misfire that allowed a shot of
> unburnt air-fuel mixture to enter the exhaust manifold. When that fuel
was
> subsequently ignited by the next hot exhaust pulse it gave the turbo big
> shove that pushed the boost up an extra 10 psi for just a moment.
>
> ----- Original Message -----
> From: <(email redacted)>
>
> > I am still ocasionally getting knocks after a month of tuning. I
realized
> > that it could be the boost controller that ran inconsistent. Most of
the
> > time, it works fine, but once in a while the boost controller let the
> boost
> > bump up to 214 kpa before releasing the pressure. Did any of you
> experience
> > this? Any help will be greatly appreciate.
> >
> > info:
> > 1.6L, LINK, 18-Oct-2000 chip, 5 degree base timing (with -1 ignition
trim
> > for this datalog)
> >
> > -----------------------------------------------
> >
> > 001841 5135 L 202 4 88 c 60 1782 61 w 42 1 4.8
> >
> > 001842 5159 L 202 88 c 60 1782 61 w 42 1 4.8
> >
> > 001843 5175 L 203 88 c 60 1800 62 w 42 2 4.8
> >
> > 001844 5219 L 203 88 c 60 1782 62 w 42 2 5.0
> >
> > 001845 5174 L 202 88 c 61 1800 62 w 42 24 4.8
> >
> > 001846 5319 L 212 87 c 61 1893 67 w 42 10 3.5
> >
> > 001847 5283 L 214 88 c 30 1930 67 w 42 167 3.5
> >
> > 001848 5302 L 209 88 c 60 1837 64 w 42 57 3.0
> >
> > 001849 5345 L 198 89 c 60 1782 63 w 42 28 3.5
> >
> > 001850 5319 L 194 89 c 61 1689 59 w 42 10 5.3
>
Mail From: Bill Cardell <(email redacted)>
Basically, none of them are perfect. We sell a lot of magnecors and don't
have a lot of warrantee claims, but we do get some. I've even had occasional
problems on my own car. Tried some interesting carbon fibre plug wires last
year, think NOPI may be selling them now. So much RFI that I couldn't get a
Miata with a Link to run with them.
Bill Cardell
(email redacted)
Flyin' Miata
flyinmiata.com
200mphmiata.net
1-800-FLY-MX5S (orders only)
1-970-242-3800 (tech)
-----Original Message-----
From: Ralph W. Gould [mailto:(email redacted)]
Sent: Saturday, January 06, 2001 7:26 AM
To: WONG,CLIVE (A-PaloAlto,ex1); 'Ray Ayala'; (email redacted)
Subject: Re: LINK
I have been severely chastised by one or two individuals for suggesting that
Magnecor plug
wires could be suspect. Politically incorrect
or not , you should at least TRY another brand in
the interest of eliminating the misfire.
As others have stated, as well as my dyno shop guy, Magnecores can be
problematic with high boost applications. Bad batch? Who knows? NGK blues
are a good troubleshooting starting point.
Ralph
Original Message -----
From: "WONG,CLIVE (A-PaloAlto,ex1)" <(email redacted)>
To: "'Ray Ayala'" <(email redacted)>; <(email redacted)>
Sent: Saturday, January 06, 2001 7:58 AM
Subject: RE: LINK
>
> Hi Ray,
>
> Thanks for the explanation. But I am already using ZFR7F-11 with 0.30
gap,
> 4K miles. My wires are Magnacor 8.5mm, around 20K miles. I guess too
much
> I could do to prevent this misfire, huh? How often do you change your
plugs
> and wires (I know most of you don't have much problems with Racing Beat
and
> Magnacor)?
>
> Thnaks,
> Clive
>
> -----Original Message-----
> From: Ray Ayala [mailto:(email redacted)]
> Sent: Saturday, January 06, 2001 12:34 AM
> To: (email redacted)
> Subject: Re: LINK
>
>
>
> This is a really classic datalog. Prior to line 1845 the rpm is rising
> steadily and the WG duty cycle is increasing smoothly but gradually to
hold
> the boost reasonably close to 15 psi. Then suddenly at line 1845 the rpm
> dips a bit (much more than typical statistical deviation), and in the next
> line the boost has made a sudden jump even though the WG control signal
was
> smooth and steady. In line 1847 we see the WG control signal drop
> dramatically in response to the sudden rise in boost (as it should). But
> what caused the sudden jump in boost? The drop in rpm immediatedly prior
to
> the increase in boost points to an ignition misfire that allowed a shot of
> unburnt air-fuel mixture to enter the exhaust manifold. When that fuel
was
> subsequently ignited by the next hot exhaust pulse it gave the turbo big
> shove that pushed the boost up an extra 10 psi for just a moment.
>
> ----- Original Message -----
> From: <(email redacted)>
>
> > I am still ocasionally getting knocks after a month of tuning. I
realized
> > that it could be the boost controller that ran inconsistent. Most of
the
> > time, it works fine, but once in a while the boost controller let the
> boost
> > bump up to 214 kpa before releasing the pressure. Did any of you
> experience
> > this? Any help will be greatly appreciate.
> >
> > info:
> > 1.6L, LINK, 18-Oct-2000 chip, 5 degree base timing (with -1 ignition
trim
> > for this datalog)
> >
> > -----------------------------------------------
> >
> > 001841 5135 L 202 4 88 c 60 1782 61 w 42 1 4.8
> >
> > 001842 5159 L 202 88 c 60 1782 61 w 42 1 4.8
> >
> > 001843 5175 L 203 88 c 60 1800 62 w 42 2 4.8
> >
> > 001844 5219 L 203 88 c 60 1782 62 w 42 2 5.0
> >
> > 001845 5174 L 202 88 c 61 1800 62 w 42 24 4.8
> >
> > 001846 5319 L 212 87 c 61 1893 67 w 42 10 3.5
> >
> > 001847 5283 L 214 88 c 30 1930 67 w 42 167 3.5
> >
> > 001848 5302 L 209 88 c 60 1837 64 w 42 57 3.0
> >
> > 001849 5345 L 198 89 c 60 1782 63 w 42 28 3.5
> >
> > 001850 5319 L 194 89 c 61 1689 59 w 42 10 5.3
>
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