Miatapower List Archive

This read-only message was archived from a public mail list.
Mail From: "Wiseman, Curtis J" <(email redacted)>


Hey Powermongers,

Lots of folks here tinker with inventive ideas. I've got an idea that I'll
let somebody have for free if you tell the rest of us how you do it.

The old Cowl Induction GM cars had a vacuum-operated flap that opened under
load to let cool air in to the intake from the cowl area. I don't care to
change the look of my car with a scoop and various CAI setups (cowl
induction, TSI inlet, etc.) have issues of their own. What I think would be
a cool solution would be a hinged driver's-side headlight lid that would
open 2" or so under boost. The idea would be to have it operate
independently of the headlight itself to funnel air to the SC/turbo intake
filter, whether the headlights are up or down. It has been determined by
someone on the big list that opening the headlights drops intake temps
considerably. A "Houston intake" would work great this way. It would not
require ducting, per se, other than around the lid itself. I think it would
also look cool to have an active aero device. :-)

Any takers?

Curtis

This read-only message was archived from a public mail list.
Mail From: Aleksandr Milewski <(email redacted)>


At 13:44 -0500 on 990701, you commanded the electrons thusly:
|What I think would be
|a cool solution would be a hinged driver's-side headlight lid that would
|open 2" or so under boost. The idea would be to have it operate
|independently of the headlight itself to funnel air to the SC/turbo intake
|filter, whether the headlights are up or down. It has been determined by
|someone on the big list that opening the headlights drops intake temps
|considerably. A "Houston intake" would work great this way. It would not
|require ducting, per se, other than around the lid itself. I think it would
|also look cool to have an active aero device. :-)

Curtis,
Funny you should mention this. There was just a guy on the big
list who suggested modifying the headlight motor/wiring/limit
switches to be able to raise the light(s) about 2" for the CAI effect.

Of course, he called it "ram air" and was promptly crucified. ;)
Several people also pointed out that air flows _out_ of TSI's.

But, on a boosted car with a Houston Intake, it might work pretty well.

-Zandr


---------------------------------------------------------------------
Aleksandr Milewski N6MOD
(email redacted) milewski.org/

This read-only message was archived from a public mail list.
Mail From: "Wiseman, Curtis J" <(email redacted)>


Zandr and Stephen,

I guess that a TSI has a venturi effect and sucks air out at speed. I had
heard this on the big list. Somebody tested it and supposedly proved the
effect. Somebody else took underhood temps before and after and found a
slight improvement at speed (hot air still dribbles out due to gravity when
the car is stopped). I guess they should be called TSOs. :-) It still
seems that a scoop (the entire headlight lid) placed almost on the leading
edge of the nose should be able to "ram" some air in. It might have to go
to an airbox to be effective. Oh well, at least *I* think it's a cool idea.
Maybe if I call Caleb....

Curtis

----------
From: Aleksandr Milewski[SMTP:(email redacted)]
Reply To: Aleksandr Milewski
Sent: Friday, July 02, 1999 12:27 PM
To: Wiseman, Curtis J; (email redacted)
Subject: Re: CAI Headlight Lid?


At 13:44 -0500 on 990701, you commanded the electrons thusly:
|What I think would be
|a cool solution would be a hinged driver's-side headlight lid that
would
|open 2" or so under boost. The idea would be to have it operate
|independently of the headlight itself to funnel air to the SC/turbo
intake
|filter, whether the headlights are up or down. It has been
determined by
|someone on the big list that opening the headlights drops intake
temps
|considerably. A "Houston intake" would work great this way. It
would not
|require ducting, per se, other than around the lid itself. I think
it would
|also look cool to have an active aero device. :-)

Curtis,
Funny you should mention this. There was just a guy on the
big
list who suggested modifying the headlight motor/wiring/limit
switches to be able to raise the light(s) about 2" for the CAI
effect.

Of course, he called it "ram air" and was promptly
crucified. ;)
Several people also pointed out that air flows _out_ of TSI's.

But, on a boosted car with a Houston Intake, it might work
pretty well.

-Zandr



---------------------------------------------------------------------
Aleksandr Milewski
N6MOD
(email redacted)
milewski.org/

This read-only message was archived from a public mail list.
Mail From: (email redacted) (Mike Inman)



Something I have seen on several vehicles over the years is a wheel-well
intake... air around the tire should be roughly ambient pressure, roughly
ambient temp (except at low speeds with extreme braking, guess that rules this
out for racers who actually USE their brakes... Probably should keep a good
filter in-place for brake dust and road debris...) Certainly better than
sucking it from the vicinity of the exhaust manifold and back side of the
radiator. And it is a 100% stealth location for an intake duct....

I have TSIs and Corky's old aluminum airbox mounted behind the headlamp, I get
heatsoak when messing around below 30mph for extended periods, but that all
changes after about 3 seconds of acceleration......

M

At 13:51 7/2/99 -0500, you wrote:
>
>Zandr and Stephen,
>
>I guess that a TSI has a venturi effect and sucks air out at speed.  I had
>heard this on the big list.  Somebody tested it and supposedly proved the
>effect.  Somebody else took underhood temps before and after and found a
>slight improvement at speed (hot air still dribbles out due to gravity when
>the car is stopped).  I guess they should be called TSOs.  :-)  It still
>seems that a scoop (the entire headlight lid) placed almost on the leading
>edge of the nose should be able to "ram" some air in.  It might have to go
>to an airbox to be effective.  Oh well, at least *I* think it's a cool idea.
>Maybe if I call Caleb....
>
>Curtis
>
> ----------
> From: Aleksandr Milewski[SMTP:(email redacted)]
> Reply To: Aleksandr Milewski
> Sent: Friday, July 02, 1999 12:27 PM
> To: Wiseman, Curtis J; (email redacted)
> Subject: Re: CAI Headlight Lid?
>
>
> At 13:44 -0500 on 990701, you commanded the electrons thusly:
> |What I think would be
> |a cool solution would be a hinged driver's-side headlight lid that
>would
> |open 2" or so under boost.  The idea would be to have it operate
> |independently of the headlight itself to funnel air to the SC/turbo
>intake
> |filter, whether the headlights are up or down.  It has been
>determined by
> |someone on the big list that opening the headlights drops intake
>temps
> |considerably.  A "Houston intake" would work great this way.  It
>would not
> |require ducting, per se, other than around the lid itself.  I think
>it would
> |also look cool to have an active aero device.  :-)
>
> Curtis,
> Funny you should mention this. There was just a guy on the
>big
> list who suggested modifying the headlight motor/wiring/limit
> switches to be able to raise the light(s) about 2" for the CAI
>effect.
>
> Of course, he called it "ram air" and was promptly
>crucified. ;)
> Several people also pointed out that air flows _out_ of TSI's.
>
> But, on a boosted car with a Houston Intake, it might work
>pretty well.
>
> -Zandr
>
>
>
>---------------------------------------------------------------------
> Aleksandr Milewski
>N6MOD
> (email redacted)
><milewski.org/>milewski.org/
>

This read-only message was archived from a public mail list.
Mail From: "Bob Schnider" <(email redacted)>


>
>Zandr and Stephen,
>
>I guess that a TSI has a venturi effect and sucks air out at speed. I had
>heard this on the big list. Somebody tested it and supposedly proved the
>effect. Somebody else took underhood temps before and after and found a
>slight improvement at speed (hot air still dribbles out due to gravity when
>the car is stopped). I guess they should be called TSOs. :-) It still
>seems that a scoop (the entire headlight lid) placed almost on the leading
>edge of the nose should be able to "ram" some air in. It might have to go
>to an airbox to be effective. Oh well, at least *I* think it's a cool idea.
>Maybe if I call Caleb....
>
>Curtis
>
I'm really hoping that you're right. I have a spare cover on the way which
I intend to 'ventilate' in an effort to reduce the underhood temps and
hopefully supply ambient temp air to the intake. not sure if i'll try naca
duct style or louvres. i'm certainly open to ideas/suggestions.
--
Bob Schnider & Tango
90A Red, eh... #1598
MCA, Sea to Sky Chapter
Deja Vu Racing
doc.schdist42.bc.ca/bob/

This read-only message was archived from a public mail list.
Mail From: (email redacted)


ONLY thing I disliked about louvers after a paint job was the overspray
exists on one side or the other and you gotta buff it out :)

Happy Holiday, all!

bob

This read-only message was archived from a public mail list.
Mail From: Mike Marzalek <(email redacted)>


Don't some of the aftermarket low profile headlamps raise the barn doors
just a few inches? How do they do it?

Mike Marzalek
(email redacted)
'96 red aerodyne
Sonoma County, Ca.

This read-only message was archived from a public mail list.
Mail From: "sdF" <(email redacted)>


I think they change the control arms for the whole headlight unit... shorten
them up to act with less travel... no way to have it dual acting short / all
the way...

I haven't looked yet, but is there a way to lift the headlight cover from
the rest of the assembly? The metal may be too light to handle the force of
the air, but...

Anyone have any thoughts?

Todd
'92 S4
'92 FM2

-----Original Message-----
From: (email redacted)
[mailto:(email redacted)]On Behalf Of Mike Marzalek
Sent: Friday, July 02, 1999 4:13 PM
To: 'Mike Inman'; (email redacted)
Subject: RE: CAI Headlight Lid?



Don't some of the aftermarket low profile headlamps raise the barn doors
just a few inches? How do they do it?

Mike Marzalek
(email redacted)
'96 red aerodyne
Sonoma County, Ca.

This read-only message was archived from a public mail list.
Mail From: "Greg Germar" <(email redacted)>


The Pegasus Catalog has some nice NACA style ducts (bigger than the usual
ones we see). These all collect into an outlet, but I dunno if it will fit
under the headlight lid. Might not. Now if you had an extra HOOD, they
have a dual NACA duct....

FWIW,

Greg

>
> >
> >Zandr and Stephen,
> >
> >I guess that a TSI has a venturi effect and sucks air out at speed. I
had
> >heard this on the big list. Somebody tested it and supposedly proved the
> >effect. Somebody else took underhood temps before and after and found a
> >slight improvement at speed (hot air still dribbles out due to gravity
when
> >the car is stopped). I guess they should be called TSOs. :-) It still
> >seems that a scoop (the entire headlight lid) placed almost on the
leading
> >edge of the nose should be able to "ram" some air in. It might have to
go
> >to an airbox to be effective. Oh well, at least *I* think it's a cool
idea.
> >Maybe if I call Caleb....
> >
> >Curtis
> >
> I'm really hoping that you're right. I have a spare cover on the way
which
> I intend to 'ventilate' in an effort to reduce the underhood temps and
> hopefully supply ambient temp air to the intake. not sure if i'll try
naca
> duct style or louvres. i'm certainly open to ideas/suggestions.
> --
> Bob Schnider & Tango
> 90A Red, eh... #1598
> MCA, Sea to Sky Chapter
> Deja Vu Racing
> doc.schdist42.bc.ca/bob/
>
>
>
>