turbo exhaust cut out question

[bovo8]

so i have a kit going on my 94 integra LS, i am getting an electric cutout put in. so i want to know if it makes any difference if i went to a smaller exhaust can than the one i have now (2.5 in). will going smaller decrease my horsepower when the cutoff is still flowing through the whole system? Or should i just stay put with the apexi 2.5 inch that i got?

 

[dekaf]

stay with the 2.5 inch or get a custom 3 inch
bigger(to an extent)=more flow=more power

 

[Prozon]

Yes, going smaller will slightly decrease power.
Why are you using an electric cutout...? Doesn't seem like something that should be on a Honda lol.

Don't go any smaller than 2.5" with a turbo..

 

[hidenplanvew]

cut outs are old school, dont waste your money on it just get a 3" or stick with the 2.5... a cut out wont do anything to help flow unless the cut out is lined up with the flow it will just increase noise

 

[Prozon]

I'm pretty sure that was the point. He could roll around with a noisy exhaust, then close the cut out to have a quiet exhaust. Either way I see it as more of a muscle car/rat rod thing. Not something for an Integra, especially a turbocharged one.

 

[red.line]

cut outs are old school, dont waste your money on it just get a 3" or stick with the 2.5... a cut out wont do anything to help flow unless the cut out is lined up with the flow it will just increase noise

Not necessarily.
A friend of mine has a cutout on his Aristo and with it open, it netted him a 30 whp gain and sounds like a jet engine haha.

And what do you mean "line up with the flow"? A cutout is simply a Y-pipe with one part going down to the muffler and another to a butterfly valve..exhaust gases will take the path of least resistance, so when it's open, that would be out the valve.

 

[ixcocoyxi]

i agree with red.

theres lots of people here that run drag on a turbo honda with a cutout. i say do it.
and people could hear the turbo spooling up for miles!! :thumbs up

 

[Tam4511]

exhaust on a boosted car doesn't give you power, you just need a pipe that will handle the flow and get the exhaust out as fast as the turbo pushes it, 3inch piping is reccomended

 

[Prozon]

Exhaust on a boosted car restricts power. Lol.
A car with a 3" exhaust could make more power then a car with a 1" exhaust. :thumbs up