Fox T-Bird/Cougar Forums

Technical => Engine Tech => Topic started by: cadillacmob on September 07, 2010, 12:35:04 AM

Title: Turbo Coupe exhaust. What exhausts are best?
Post by: cadillacmob on September 07, 2010, 12:35:04 AM
Im gettin ready to do the exhaust on my 88 turbo coupe and i am wonderin what everyone is doin.  i want to ditch my converter for starters and i know i want dual's for sure.  Ive seen stingers exhaust systems for sale. Is anyone running that?
Title: Turbo Coupe exhaust. What exhausts are best?
Post by: T-BirdX3 on September 07, 2010, 09:08:19 AM
I have read alot of good things about Stingers exhaust, but I personaly have yet to try one.
Title: Turbo Coupe exhaust. What exhausts are best?
Post by: BogusSVO on September 07, 2010, 10:01:21 AM
I run 2.5 back to a hooker aero chamber ler with a turn dom just before the rear

no matter what ler you go with , make sure its a blow thu and not a baffle style.

flow masters are a no no for turbo apps
Title: Turbo Coupe exhaust. What exhausts are best?
Post by: Chuck W on September 07, 2010, 10:08:01 AM
I prefer a single 3", with a tail pipe.

I've got a Stinger tail pipe, but I needed to make a couple adjustments to it for my set-up, as well as add a tip to extend it to the bumper.
Title: Turbo Coupe exhaust. What exhausts are best?
Post by: 88turbo on September 07, 2010, 10:47:10 AM
Quote from: BogusSVO;334917
I run 2.5 back to a hooker aero chamber ler with a turn dom just before the rear

no matter what ler you go with , make sure its a blow thu and not a baffle style.

flow masters are a no no for turbo apps


can you tell me why? I run dual 40's with no ill affects
Title: Turbo Coupe exhaust. What exhausts are best?
Post by: BogusSVO on September 07, 2010, 11:46:05 AM
Quote from: 88turbo;334920
can you tell me why? I run dual 40's with no ill affects


 simple, baffles rob you of HP, by causing back pressure, they slow the spool time of the turbo
Title: Turbo Coupe exhaust. What exhausts are best?
Post by: bhazard on September 07, 2010, 03:49:23 PM
Its a more than well known fact that baffled lers are the worst thing you can put on a turbo car. You might *think* you've seen no ill effects until you take them off or put good lers on.

Oh and flowmasters are usually the worst in flow tests.
Title: Turbo Coupe exhaust. What exhausts are best?
Post by: dragon574444 on September 07, 2010, 04:09:08 PM
Quote from: bhazard;334934
Its a more than well known fact that baffled lers are the worst thing you can put on a turbo car. You might *think* you've seen no ill effects until you take them off or put good lers on.

Oh and flowmasters are usually the worst in flow tests.


Ironic, huh?

One question, do 4 cylinder cars really benefit much from dual exhaust? It seems kinda unnecessary to separate the exhaust after the manifold. It makes sense to have dual exhaust on a V engine, but on an inline it seems like it wouldn't be improving much. A larger, single exhaust seems like it would be better.
Title: Turbo Coupe exhaust. What exhausts are best?
Post by: BogusSVO on September 07, 2010, 04:12:02 PM
you get more restriction  with duals than you do with a good single exhaust, more surface area that the exhaust has to pass over.

2 2inch exhaust pipes have more surface area on the inside than a single 3 inch would have

but the 87/88 tc came from the factory with it, it was split after the cat.
Title: Turbo Coupe exhaust. What exhausts are best?
Post by: sarjxxx on September 07, 2010, 04:59:35 PM
Quote from: BogusSVO;334939
but the 87/88 tc came from the factory with it, it was split after the cat.

cause it looked cool man:hick:
Title: Turbo Coupe exhaust. What exhausts are best?
Post by: bhazard on September 07, 2010, 06:47:44 PM
Quote from: sarjxxx;334944
cause it looked cool man:hick:



Yeah looked so cool all tucked up and hidden...lol
Title: Turbo Coupe exhaust. What exhausts are best?
Post by: cadillacmob on September 07, 2010, 11:15:35 PM
so many choices . so many
Title: Turbo Coupe exhaust. What exhausts are best?
Post by: T-BirdX3 on September 08, 2010, 01:27:14 AM
My understanding is Stinger's single 3 inch pipe is the best flowing option, it is also cheaper and lighter than splitting it into the 2.5 duals.
Title: Turbo Coupe exhaust. What exhausts are best?
Post by: cadillacmob on September 10, 2010, 03:39:30 PM
i like the look of the LX 5.0 mustang exhaust tips, i want to copy that for my t bird .