HP gains from exhaust over stock???

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03-09-2003, 04:19 AM

Tad

1.0 BAR

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Join Date: Jan 2003

Posts: 422

HP gains from exhaust over stock???

Hi,
this is hypothetical considering I have no turbo yet

but I was wondering what kind of gains I could expect when going from stock exhaust, to sayy.. a straight thru exhaust to a universal muffler.. or some other muffler..
or a similar setup.

If it was a d16z6 running 7psi intercooled ?
thanks.

03-09-2003, 04:53 AM

DSC

0.5 BAR

Join Date: Dec 2002

Posts: 114

Re:HP gains from exhaust over stock???

I'd guess about 10hp. The stock piping is restrictive.

03-09-2003, 03:29 PM

HMT-Admin

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Join Date: Dec 2002

Posts: 13,991

Re:HP gains from exhaust over stock???

I swear to god, when I installed my ls/vtec with stock exhaust the car could hardly break the tires loose in the rain... I put my 3 inch on, the can went like a raped aipe.

JEff

03-09-2003, 04:31 PM

Tad

1.0 BAR

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Join Date: Jan 2003

Posts: 422

Re:HP gains from exhaust over stock???

so abaz, you agree with that 10hp fig?
or u sayin more?

cuz heck, I can break my dx tires loose in stock form as it is

03-09-2003, 05:40 PM

TurboEF9

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Re:HP gains from exhaust over stock???

Ya, exhaust on a turboed car isn't the same on a NA car. On an NA car, you want to make sure you balance the backpressure/delta pressure.. with a turboed car, you just want to get the damn air out as fast as possible.. therefore, slap that 3" on there. It'll increase you, most definately.

03-09-2003, 05:53 PM

scorch fx

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Join Date: Feb 2003

Posts: 122

Re:HP gains from exhaust over stock???

yes it will be very restrictive if you put the stock back on. i ran a 2.5 inch exhaust up the the resonator 14.7 sec 1/4 mile. took everthing out left the 2.5 turbo downpipe ran 14.2sec with to much wheelspin to control.

03-09-2003, 06:00 PM

djnikko

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Join Date: Dec 2002

Posts: 381

Re:HP gains from exhaust over stock???

anyone tried getting rid of that huge backbox on the MK2 CRX's and having the tailpipe coming out the right hand side? I have just done this to my rex but not tested it. I am imagining less bends and less mufflers equals less resistance for the exhaust gasses but then maybe the exhaust has to be a certain length? can length and width of pipe be a key player in performance? i .e sideexit exhausts? anyone got any input

would be interesting...