3" Catback Exhaust on Stock JDM H22A (Dyno)

[gsrob]

Nice numbers. You should see some good hp #s with the addition of a good header as well.

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[EG8]

Oh im sure, my header is dented on the 2 runners before the oil pan. And its a DC Crap header anyway. I will buy a header as soon as i get up some extra cash.

[hpi247]

This is the exact thread I have been looking for. Im planning on going with a SMSP header and a 3 inch exhaust. Like many people have said, the 3 inch may be a bit much for a stock bottom end h22, as well as the a stock head. But I plan to build the entire head followed by the block. With the fully built motor, I believe the 3 inch exhaust would be beneficial, so why not do it from the beginning and save some money. Yes I may lose some power while the engine is stock, but with being strapped for money and having it pay of in the end, will it really be that much of a decrease?

EG8, how do you like the sound of the vibrant muffler?

[Unsivil_audio]

Theres a reason why you see full dragster's with zumiez...back pressure is bad, period.

[ESP.net]

The bigger key will be the 2.5" collector... which H22's like...stock or built...

[EG8]

Originally Posted by hpi247

This is the exact thread I have been looking for. Im planning on going with a SMSP header and a 3 inch exhaust. Like many people have said, the 3 inch may be a bit much for a stock bottom end h22, as well as the a stock head. But I plan to build the entire head followed by the block. With the fully built motor, I believe the 3 inch exhaust would be beneficial, so why not do it from the beginning and save some money. Yes I may lose some power while the engine is stock, but with being strapped for money and having it pay of in the end, will it really be that much of a decrease?

EG8, how do you like the sound of the vibrant muffler?

I really enjoy the sound of the vibrant, it does get a bit loud on the outside, but nothing unbearable. Funny thing is, on the inside, my intake is louder then the exhaust note. I barely hear it and there is 100% Zero exhaust drone inside the cabin of the car.

My motor is completely stock on the inside, all i have are bolt ons and the car loves the 3". So im thinking stock motor or not 3" on H22 is the only way to go!

[hpi247]

Originally Posted by EG8

My motor is completely stock on the inside, all i have are bolt ons and the car loves the 3". So im thinking stock motor or not 3" on H22 is the only way to go!

agreed. seems to also be the consensus from the all motor section h22 gurus.

Originally Posted by EG8

I really enjoy the sound of the vibrant, it does get a bit loud on the outside, but nothing unbearable. Funny thing is, on the inside, my intake is louder then the exhaust note. I barely hear it and there is 100% Zero exhaust drone inside the cabin of the car.

thats good to hear. have heard great reviews about vibrant from many people. i have to get rid of my n1 stlye muffler. dont get me wrong, i love the sound and the fact my friends say they hear me from blocks away. cops dont seem to agree with me though.

[00MRSi]

EG8, you have a vibrant cat-back or just rear muffler?

[Mike95lude]

EG8,

Which cat are you running with the 3" catback or if you aren't using a cat, which are you running in place of the cat?

[k20_typeR_EG]

damn trhats big for all motor

[EG8]

I currently have no cat right now. its just pipe. I have the 97-01 Prelude Header which bolts straight to my exhaust so think of it like the DC sports race header ont he RSX type S.

I dont have the full vibrant catback, just their muffler, and a summit racing resonator.

[Infinity_Racer]

what do you guys think about this.


[quote=acidcrakker;1601719]

Originally Posted by 95hprelude

theres a dyno of an h22 that claims a couple more whp with 3"

http://************.com/forums/showt...663[/quote]


Ive seen that one before. Its not a direct replacement for a OEM exhaust. It has a tuning system, plus more than just basic bolt ons.

With a tuning system, you can do anything, with out it, well you can do much more than I/H/E.

That thing has SRI, DC Crap 4-2-1, Skunk2 Mega Power Exhaust, SKunk2 Cam Gears, Removed Butterflies in the Intake Manifold, Tuned on Crome
as a starter set-up.

I can't and wont accept that as the 3" is better than 2.5"

[92TypeR]

Originally Posted by Infinity_Racer

what do you guys think about this.

He can't accept the truth, that is his problem. He can deal with it how he wishes. The fact remains, everything after the final collector is a restriction. This isn't an internet myth or opinion, this is straight from SAE papers as well as manifold and internal combustion textbooks.

[ESP.net]

Originally Posted by 92TypeR

He can't accept the truth, that is his problem. He can deal with it how he wishes. The fact remains, everything after the final collector is a restriction. This isn't an internet myth or opinion, this is straight from SAE papers as well as manifold and internal combustion textbooks.

True... K20's like 3"... as always collector size is crucial...

[street_accord94]

It has a tuning system, plus more than just basic bolt ons..

I'm not seeing anything in the OP's setup that would be more than a basic bolt on...I dont think the comments from acidcrakker have any substance.

Impressive gains IMO

[Infinity_Racer]

Originally Posted by street_accord94

It has a tuning system, plus more than just basic bolt ons..

I'm not seeing anything in the OP's setup that would be more than a basic bolt on...I dont think the comments from acidcrakker have any substance.

Impressive gains IMO

it doesnt...we just had a good laugh over on ************ and i thought i'd lighten your days on here...its actually pretty funny how confident he is about it 'losing low end' power because its too big...

[.Hatches.]

great thread. so for my h2b setup i'll go 2.5" collector to 3" high flow cat and 3" catback.

[hpi247]

Originally Posted by .Hatches.

great thread. so for my h2b setup i'll go 2.5" collector to 3" high flow cat and 3" catback.

exactly what im doing. seems that it really is the collector size that is crucial. after some research, you want as little restriction as possible after the collector. i want to do a test pipe and throw a cat in there for inspection time. might just go with a gutted cat instead of the test pipe, just in case i ever need to pass a visual inspection.

[H.]

what if u go go 3" collector to 3" high flow cat and 3" catback?

[street_accord94]

just install a cat heat shield over your test pipe

[EG8]

some people just cant except the truth. Same Dyno, Same Car, Same Setup, The only thing changed was the exhaust so whatever.

If the guy is to ignorant to except the fact then by all means he can ignore it. However dont tell me i dont have basic bolt ons when i dont even know what the insides of my motor looks like, only honda knows . I'll do some internal work maybe.

Car runs great, havnt had a chance to strap it back down and do tuning for the 3" but its enjoyable on the street and very effective.

[.Hatches.]

hey as a friend mentioned, what was your previous exhaust setup before this dyno?

[EG8]

SKunk2 Mega power 60mm or 2.3" OD, 2.25" ID Stainless Steel, Mandrel Bent.

[.Hatches.]

i dono man. from a 2.5 to 3" you gained 7hp and 19tq. hmmm i might just do go with 3

[EG8]

first off its 2.25" to 3" second where did you get 19lb-ft of torque from? read through the first page, i think your seeing the same thing the first guy saw.