Another exhaust question
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From: College Station Tx
Another exhaust question
I am getting ready to change my exhaust. I have a 1990 Vette, but the exhaust is a '92-96 (dual) chambered style exhaust. I have a decent amount of bolt-ons (including a Mini-Ram) and the car is putting out pretty good power. If the new exhaust pipe diameter is 2 1/4", will this choke up the engine as far as the power is concerned? I have TPiS LT headers on there with muffler elim's. Would I be better off staying with the "factory style" set up?
Thanks,
Jeff
[Modified by 1990z, 9:18 AM 12/20/2003]
Thanks,
Jeff
[Modified by 1990z, 9:18 AM 12/20/2003]
Team Owner
Joined: Dec 2000
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From: SE NY
Cruise-In II Veteran
Re: Another exhaust question (1990z)
If you still have stock heads & cam 2 1/2" duals will likely be fine as it has nearly 1 sq. in. greater total pipe area than a 3" single pipe.
However, take a close look at those pipes; if they aren't mandrel-bent the bends will be somewhat restrictive.
However, take a close look at those pipes; if they aren't mandrel-bent the bends will be somewhat restrictive.
Le Mans Master
Joined: Jan 2003
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From: Portland Oregon
Re: Another exhaust question (1990z)
If you want to stay with a stock style 93-96 system they are 2.75" tubing and the only restriction is in the rear muffler section. The tubing from the cats up was 2.75" right through the resonator.
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Joined: Feb 2003
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From: College Station Tx
Re: Another exhaust question (1990z)
It is an aftermarket chambered exhaust system. The pipe diameter is 2 1/4" and that is what I am worried about. I am pretty sure that I am making well over 300 hp.
Thanks,
Jeff
[Modified by 1990z, 6:22 PM 12/20/2003]
Thanks,
Jeff
[Modified by 1990z, 6:22 PM 12/20/2003]
Le Mans Master
Joined: Jan 2003
Posts: 8,596
Likes: 19
From: Portland Oregon
Re: Another exhaust question (TA)
IMHO I would find me a take off LT4 system, and they are out there. Call LPE they use to have lots of take off systems lying around being sold for CHEAP! Then get a set of high flow rear section mufflers install on it. Or as you seem to like a lot of noise you can option for some muffler eliminators. That would let your engine breath with 2.75" pipes all the way back.
