onefstek

Recent work at ASP.

3" Aluminum race exhaust DC5 chassis





















Modified by onefstek at 6:49 PM 3/10/2008

hybrid2007

Broken links buddy

onefstek

Ill have to fix that.

onefstek

I swiched host, it should work now.

91jdmhatchback

looks good, but can i ask what the purpose of the exhaust was?

also did you weight the exhaust?

hybrid2007

Looks good dude, what wall thickness did you use?

onefstek

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 91jdmhatchback &raquo;</TD></TR><TR><TD CLASS="quote">looks good, but can i ask what the purpose of the exhaust was?

also did you weight the exhaust?

</TD></TR></TABLE>

Its an exhaust for the NOPI street class where you must have the exhaust exit in the stock location.

The exhaust weights in at less than 10lbs.

Blown90hatcH

Where is the muffler? Like boogers

.john.

i bet it sounds terrible, i made an all alluminum exhaust for a turbo rx7 and it was unbearably loud, even with mufflers. the alluminum just resonates so badly it amplifies the sound!

i like that you called it a "race" exhaust on a car that has a cat and is most likely stock, lol

.RTErnie

.john,
do you know Justin Pallock? aka JTP? Drives a Green FD RX-7 w/white Te37's?

.john.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by .RTErnie &raquo;</TD></TR><TR><TD CLASS="quote">.john,
do you know Justin Pallock? aka JTP? Drives a Green FD RX-7 w/white Te37's?</TD></TR></TABLE>

yeah, im actually making him a turbo manifold for this year, lol

ScorpioMk

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by .john. &raquo;</TD></TR><TR><TD CLASS="quote">

i like that you called it a "race" exhaust on a car that has a cat and is most likely stock, lol</TD></TR></TABLE>

This really makes you seem like a dick. Many reasons to leave a cat in a car.


Marcus

.john.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ScorpioMk &raquo;</TD></TR><TR><TD CLASS="quote">

This really makes you seem like a dick. Many reasons to leave a cat in a car.


Marcus</TD></TR></TABLE>

like...?

I'm guessing this car runs in a class like the nhra street stock, so really this exhaust is just making the car louder, and I guess a few pounds lighter. If you heard what alluminum exhaust sounded like you would understand my negative point of view.


Modified by .john. at 8:44 AM 3/11/2008

*Boostwerks*

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ScorpioMk &raquo;</TD></TR><TR><TD CLASS="quote">

This really makes you seem like a dick. Many reasons to leave a cat in a car.


Marcus</TD></TR></TABLE>

I'm afraid I'm going to have to agree with John here. There are many reasons to leave a cat in a car...but add "race" into the mix and it doesn't make sense.

onefstek

Well I guess there is a reason for everything.

1. The car the exhaust I made its my car
2. The customer that I made the exhaust for, will have a race header that will mate up with the exhaust where the stock cat flange is
3. Only reason im using this one on my car, is to test the fit it and make sure that it does not rub on anything when you drive the car.

I also wish I had a way to record some sound bites, surprizingly the car is not that loud. Even with no muffler and resonator.

Yesterday I ordered some perforated tubing to make some aluminum mufflers, wich will be added to make a street version of this exhaust.

I hope this makes sence why this exhaust is on a car with a cat.

I take criticism verry well so be free to say what you have on your mind. I can only learn from it as I go.

Thanks for all the replys.

Stefan B.
http://www.AdvancedStreetPerformance.com

done

make one for dc2 3"

117

It's most likely not that loud because of the cat. Without the cat, it'll be much, much louder.

On my track car, I used to run a 2.5" inlet to 3"outlet Burns style muffler (4.5" case OD, 17" length) that was mounted where the stock resonator is located on a Prelude. From there, it was 3" stainless back to a 45 degree turn down in front of the rear LCA. On the dyno, at around 10 ft or so from the rear of the car, it would peg my sound meter at 126dB. Waaaaaay too loud.

My new exhaust uses the same muffler, but I also added a 3" inlet/outlet, 6.25" can OD, 17" length muffler where the stock muffler would normally be located. The new exhaust runs all the way to the rear bumper. The turn down under the car was amplifying the sound level, especially inside the car. The new exhaust is much, much quieter, but I haven't had a chance to do any sound pressure readings yet. Next time I go to the dyno, I'll do that.

BTW, the rear half of my current exhaust is aluminum, and it doesn't sound bad at all.

Also there is no cat on my car, and it's never driven on the street. It's a track only car.

weiRtech

i like the turned down tip steph.

ScorpioMk

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by onefstek &raquo;</TD></TR><TR><TD CLASS="quote">
1. The car the exhaust I made its my car
2. The customer that I made the exhaust for, will have a race header that will mate up with the exhaust where the stock cat flange is
3. Only reason im using this one on my car, is to test the fit it and make sure that it does not rub on anything when you drive the car.

</TD></TR></TABLE>


Thats what I was assuming. Either made on his own car for a customer thats not around right now or made so you could put a test pipe in front of it and go thru emmissions without changing the whole exhaust just drop the cat back in.


Marcus

onefstek

The customer is not local, so I made it on my car. That way he can just bolt it up to the header that he is going to run.

.RTErnie

stephen... only suggestion i have is to make the footprint from the hangers on the pipe larger. (more surface area)

onefstek

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by .RTErnie &raquo;</TD></TR><TR><TD CLASS="quote">stephen... only suggestion i have is to make the footprint from the hangers on the pipe larger. (more surface area)</TD></TR></TABLE>

I was going to, but since this one does not have a muffler or resonator, it should hold up just fine.

If I end up putting a muffler on it, ill use a bigger footprint to weld the hangers to the pipe. Or even use a clamp around the pipe and weld steel hangars to the clamp.

done

MAKE ME one with resonator, ill put deposit right now for it.

onefstek

I can't sell them on here since im not a sponsor.

CRMB

Looks good. I still think the hangers should be steel, welded to a clamp, then clamped on. But thats just me.

At 10lbs thats less then half the weight of a steel version.