Miata List Archive

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Mail From: abefm (Abraham Mara)

Now there's a useful post in this thread. :-) Even after all my teasing.

Couldn't you get dual exhaust, and then have little sliders? Just close the
door on that side that week.

When looking around at tips today I saw something you stuff in a tip to
quiet it down - with duals, you could come up with something usable, I bet.
Still illegal? Maybe, maybe not.
-Abe.

-----Original Message-----
From: (email redacted) [mailto:(email redacted)] On Behalf
Of Bonni Weatherwax
Sent: Thursday, March 03, 2005 6:21 PM
To: Petra van den Berge; (email redacted)
Subject: Re: [Miata] Still more NC pics

> I never understood why cars had their exhaust at the passenger's side.


***If I had my druthers, I'd be able to switch my exhaust to whatever side
the sound gun was at the racetracks. ;) Of course, this is illegal in
racing anyway. At least for ITA and SM classes in my region (SFRSCCA region
33). :?

BW


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Mail From: keith (Keith Tanner)

Something I remembered this morning on the way to work - the old Series
Land Rovers used a different exhaust configuration for RHD and LHD
variations. There was no technical reason for this, I believe it was
related to older British regulations on where the exhaust pipe had to be.
It was always routed to the driver's side.

Keith

At 11:14 PM 3/3/2005, you wrote:
>Now there's a useful post in this thread. :-) Even after all my teasing.
>
>Couldn't you get dual exhaust, and then have little sliders? Just close the
>door on that side that week.
>
>When looking around at tips today I saw something you stuff in a tip to
>quiet it down - with duals, you could come up with something usable, I bet.
>Still illegal? Maybe, maybe not.
> -Abe.
>
>-----Original Message-----
>From: (email redacted) [mailto:(email redacted)] On Behalf
>Of Bonni Weatherwax
>Sent: Thursday, March 03, 2005 6:21 PM
>To: Petra van den Berge; (email redacted)
>Subject: Re: [Miata] Still more NC pics
>
> > I never understood why cars had their exhaust at the passenger's side.
>
>
>***If I had my druthers, I'd be able to switch my exhaust to whatever side
>the sound gun was at the racetracks. ;) Of course, this is illegal in
>racing anyway. At least for ITA and SM classes in my region (SFRSCCA region
>33). :?
>
>BW
>
>
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>Miata mailing list
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>
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Mail From: jeremy.parker (Parker, Jeremy)

Away from the pavement (sidewalk to you lot) and pedestrians.

Jerry Parker
1995 1.8iS


-----Original Message-----
From: Keith Tanner [mailto:(email redacted)]
I believe it was
related to older British regulations on where the exhaust pipe had to be.
It was always routed to the driver's side.

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Mail From: bonni (Bonni Weatherwax)


> Away from the pavement (sidewalk to you lot) and pedestrians.
>
***Then why do Chevrolet trucks have that tail pipe that curves and points
to the pax side? Dodges tend to have the pipe pointing slightly down. I
dunno what Ford has -- I don't much look at those trucks. ;? I don't know
if this is on all trucks, if it is only on some trucks, newer trucks,
whatever -- I have just noticed it, especially if I'm next to a real stinker
at a red light and I've got the top down!

BW

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Mail From: keith (Keith Tanner)


> > Away from the pavement (sidewalk to you lot) and pedestrians.
> >
>***Then why do Chevrolet trucks have that tail pipe that curves and points
>to the pax side? ...

Because:
1) The US has no such regulations
2) those are not UK trucks
3) I don't believe it is in force any longer in the UK, which still
wouldn't affect US vehicles.

Exhaust exit is determined primarily by engineering needs.

Keith

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Mail From: bonni (Bonni Weatherwax)

> Exhaust exit is determined primarily by engineering needs.
>
***Well, I want to start carrying a potato to stick up the exhaust tips of
those damn trucks that have the pipes that turn to ME. I seem to always
find them! I was next to an older Chevy (+/-1985-ish) whose exhaust was so
caustic that my eyes were watering. Don't get me wrong, I happen to love
the smell of fuel . . . but not in my eyes!!! Lol.

BW

PS-- THANKS Keith for the reply . . . I love learning new stuff!!!

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Mail From: abefm (Abraham Mara)

In my quest for information - I've talked to a few folks who said they had
exhaust that exited under the car - to no ill effects.

Hmmmm.....
-Abe.

-----Original Message-----
From: (email redacted) [mailto:(email redacted)] On Behalf
Of Bonni Weatherwax
Sent: Friday, March 04, 2005 8:39 PM
To: miata-list.miata.net; Keith Tanner
Subject: Re: [Miata] Still more NC pics

> Exhaust exit is determined primarily by engineering needs.
>
***Well, I want to start carrying a potato to stick up the exhaust tips of
those damn trucks that have the pipes that turn to ME. I seem to always
find them! I was next to an older Chevy (+/-1985-ish) whose exhaust was so
caustic that my eyes were watering. Don't get me wrong, I happen to love
the smell of fuel . . . but not in my eyes!!! Lol.

BW

PS-- THANKS Keith for the reply . . . I love learning new stuff!!!


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Mail From: jeremy.parker (Parker, Jeremy)

Think you're right that it's no longer a requirement in the UK, Keith,
there's just a hang-over from more civilised times.
Of course, exhausts are so much cleaner now than years ago that it's not
such a problem as it would have been.

Jerry Parker
1995 1.8iS




-----Original Message-----
From: Keith Tanner [mailto:(email redacted)]
Sent: Saturday, March 05, 2005 1:08 AM
To: miata-list.miata.net
Subject: Re: [Miata] Still more NC pics



> > Away from the pavement (sidewalk to you lot) and pedestrians.
> >
>***Then why do Chevrolet trucks have that tail pipe that curves and points
>to the pax side? ...

Because:
1) The US has no such regulations
2) those are not UK trucks
3) I don't believe it is in force any longer in the UK, which still
wouldn't affect US vehicles.

Exhaust exit is determined primarily by engineering needs.

Keith

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Mail From: pete (Pete Naylor)


Matthew King wrote...

> At 07:41 AM 3/03/2005, Abraham Mara wrote:
> >Wow! Hey - I like those, you can see underneath and the suspension (front
> >and back) looks new/different (little, yellow, different)! Very cool.
> >Looks like the front suspension arms are mounted in little boxes?
>
> Only the rear bolt on the front lower control arm is like that. The bolt is
> vertical. So I'm suspecting that there may no longer be any independent
> caster adjustment.

Very interesting - must be relying on the rubber bushing to provide the
required flex for suspension travel. I'm sure this isolates noise better
- I think I've seen this kind of arrangement used to introduce a certain
active element within the alignment too.

> The bit that gets me though is the size of the half shaft! Though it does
> seem to taper in at the inner end - maybe it's hollow?

Looks like the kind of design that might be used to reduce torsional flex
- important for reducing torque steer in a FWD. I wonder if it they're
from the Ford/Mazda FWD parts bin.

What's surprising to me about the suspension is the materials and
construction of the links. The front is largely aluminum and the rear is
mostly steel tube - significantly different. I think the rear suspension
will be noticeably improved - yay! This after people arguing that such
things were far too expensive for the Miata and that the old stamped steel
parts were as developed as they could possibly be anyway. Makes me wonder
about similar arguments posted here recently regarding the potential for
improvements in the engine.

Other things I noted from the pictures... the boot/trunk opening seems
quite small - possibly quite a bit smaller than my 1990 model. The space
in the boot/trunk seems smaller too. And where is the spare? Look at the
length of the engine bay - plenty of room in front of the engine - they
just packed all the extras in there because the space was available - air
box, washer fluid etc could be squeezed in beside the engine if necessary.
The cam cover is plastic, and there's a brace running out to the tops of
the front shock towers. I noticed what looked like a four channel ABS
valve (in what seems to be a strange place, though not so strange for
ROW). I think the new Miata will be significantly quieter in terms of
road and mechanical noise, so the intake/exhaust noise might be more
prominent and enjoyable. Wheels, front and rear lights and the wheel
flares still look TTFW.

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Mail From: bonni (Bonni Weatherwax)


> In my quest for information - I've talked to a few folks who said they had
> exhaust that exited under the car - to no ill effects.
>
***All exhausts exit *under* the car, at least all that I've ever seen . . .
the talk here is, WHERE under the car does it exit. Exhaust tips, at least
on the street, generally have to at least reach the beginning of the bumper
cover, so far as I have ever seen (but I'm only 35, so I could be wrong).
And now I must admit, with all due respect Abe, your post just confused me.
What's your post have to do with the trucks I just mentioned? Now remember,
I am a truck lover . . . I was not intending to start a truck bashing. I
mean, really -- somebody's gotta haul the car to the track. But I don't
think I'd buy a truck with an exhaust that was aimed at a Miataphile. Or
I'd just modify the tailpipe. :)

BW

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Mail From: flyboy (Berck E. Nash)

Pete Naylor wrote:

> Other things I noted from the pictures... the boot/trunk opening seems
> quite small - possibly quite a bit smaller than my 1990 model. The space

Actually, it looks pretty darned big. The spare is under the car. All
the text indicates that this is the largest mia-- er, MX-5 trunk yet. I
think you're smoking something-- it's much bigger than a '90 trunk.

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Mail From: pete (Pete Naylor)


Bonni Weatherwax wrote...

> > In my quest for information - I've talked to a few folks who said they had
> > exhaust that exited under the car - to no ill effects.
> >
> ***All exhausts exit *under* the car, at least all that I've ever seen . . .

I think he meant the exhaust tip was somewhere under the chassis, rather
than extending out from under the vehicle. My old IHC pickup's exhaust
exited underneath, somewhere around the middle of the bed. I have to say
I liked it. Unless, you're the kind of person who is into soup can
exhaust tips, I don't think the exhaust should really contribute to the
aesthetics of the car - well, the Boxster exhaust is nicely integrated so
I guess there are exceptions.

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Mail From: nogood123 (NoGood)


>
> Other things I noted from the pictures... the boot/trunk opening seems
> quite small - possibly quite a bit smaller than my 1990 model. The
> space
> in the boot/trunk seems smaller too. And where is the spare?

Maybe they did the S2000 thing and put the spare under the folded top.

You won't believe how much more useable the trunk will be with that
little recess in the floor!! I am told that is a crumple zone

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Mail From: nogood123 (NoGood)

>
>>> In my quest for information - I've talked to a few folks who said
>>> they had
>>> exhaust that exited under the car - to no ill effects.
>>>
>> ***All exhausts exit *under* the car, at least all that I've ever
>> seen . . .
>
> I think he meant the exhaust tip was somewhere under the chassis,
> rather
> than extending out from under the vehicle. My old IHC pickup's exhaust
> exited underneath, somewhere around the middle of the bed. I have to
> say
> I liked it. Unless, you're the kind of person who is into soup can
> exhaust tips, I don't think the exhaust should really contribute to the
> aesthetics of the car - well, the Boxster exhaust is nicely integrated
> so
> I guess there are exceptions.

Speaking as one who has had exhausts that exited under the cars I can
authoritatively say they can cause brain damage. Having the exhaust
exit under a pick up bed is quite different, the car part ends at the
back of the cab and fumes don't leak back into the people compartment
from that far back.

At least in the case of V8s even if the exhaust tips are past the rear
axle they get into the car even when moving. It is amazing how many
places the exhaust can find to leak into the car, especially when
sitting still or moving slow.

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Mail From: miata (David)

I'm sure someone pointed out earlier that the vehicle we saw was fitted
with run flat tires and had a spot to strap in a tire inflating
canister. So why is there still talk about the spare tire location?

And yes the boot is DEFINATLY deeper (bigger) than the NB. If they could
incorporate the muffler in next to the PPF (like they have done with the
cat) the boots could be made even deeper. And it would eliminate the
"air brake" effect the rear bumper on the NB has.

Another 2 cents.

- Dave

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Mail From: miata (Mr. Photo)

Abraham Mara wrote:

>In my quest for information - I've talked to a few folks who said they had
>exhaust that exited under the car - to no ill effects.
>
>
Do these same 'folks' drive 1970's Chevy's with 4" spring shackles in
the back and cherry bombs? :0


--
- David
Bremerton, WA
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Mail From: keith (Keith Tanner)


>What's surprising to me about the suspension is the materials and
>construction of the links. The front is largely aluminum and the rear is
>mostly steel tube - significantly different. I think the rear suspension
>will be noticeably improved - yay! This after people arguing that such
>things were far too expensive for the Miata and that the old stamped steel
>parts were as developed as they could possibly be anyway. Makes me wonder
>about similar arguments posted here recently regarding the potential for
>improvements in the engine.

I was surprised to see the aluminum front control arms as well. I wonder if
they're shared with the RX-8? That would bring down the costs. It's nice to
be proven wrong sometimes. I suspect that complex rear hub is also an RX-8
part. I'll be very interested to see the suspension in person to figure out
what they've changed. Interesting note - I discovered in my reading last
night that Porsche (I believe it was Porsche, it was a high-end sports car
manufacturer) uses stamped steel control arms. Cost is obviously not the
first priority there.

The engine doesn't have balance shafts or six cylinders so it's obviously
not improved. It does have some real potential as a power producer, though.

Keith