Miatapower List Archive

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Mail From: (email redacted)

Just did my first few datalogs and used MLL. I got some knocks on the first
run. CSR suggested a few changes and I made another quick run. The datalogs
are on the Linklabexhange.

My second run was a bit better. No knocks yet. Any suggestions on what to do
next? Where to add timing and fuel?

Still fighting boost control though. Gave up for a while. What does
everyone suggest that the mechanical setting of the WG be set to?

Any quick boost control tips?

Thanks for the help. I am quite new with the Link tuning.

M. Beaver

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Mail From: "Ray Ayala" <(email redacted)>

The wg pushrod should be tight ... at least 15 lbs of static tension on =
it to prevent the wg flapper valve from simply being blown open by =
backpressure. If that does not produce at least half of your target =
boost, you can/should make it even tighter as long as there is enough =
pushrod travel left to open the flapper valve at least 30 degrees.
----- Original Message -----=20
From: (email redacted)=20
To: (email redacted)=20
Sent: Wednesday, March 21, 2001 9:58 PM
Subject: Datalog, Link tuning, and other questions


...... What does=20
everyone suggest that the mechanical setting of the WG be set to?=20

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Mail From: "Todd Paciorek" <(email redacted)>

In addition to Ray's suggestion - I have seen problems with too low of a
mechanical setting recently.

When I put my car back together I replaced the larger, high pressure
actuator with a lower one (to give the boost controller more room to
control.) At first I had mechanical boost set at 142kPa and was having a
devil of a time trying to figure out why I couldn't make boost. After
checking the wiring for the boost solenoid and several other things, I
tried tightening up the actuator arm - bam - right back into boost. I
took it from 142 to 158 and instantly saw the boost controller spring
into action. Apparently at 142 it was too loose and pressure was blowing
the wastegate open - negating any type of mechanical or electronic
control.

After that, I was able to get to 185kPa with no problem - but on my
datalogs I saw my wastegate duty cycle at 97%... not good. so, I
tightened the actuator again and I think I'm in good shape now with a
mechanical setting of 165kPa. However, I haven't fully sorted it yet, so
when the weather clears I'll do some more testing and report.

Todd

-----Original Message-----
From: (email redacted)
[mailto:(email redacted)] On Behalf Of Ray Ayala
Sent: Thursday, March 22, 2001 2:12 AM
To: (email redacted)
Subject: Re: Datalog, Link tuning, and other questions

The wg pushrod should be tight ... at least 15 lbs of static tension on
it to prevent the wg flapper valve from simply being blown open by
backpressure. If that does not produce at least half of your target
boost, you can/should make it even tighter as long as there is enough
pushrod travel left to open the flapper valve at least 30 degrees.
----- Original Message -----
From: (email redacted)
To: (email redacted)
Sent: Wednesday, March 21, 2001 9:58 PM
Subject: Datalog, Link tuning, and other questions

...... What does
everyone suggest that the mechanical setting of the WG be set to?