3" exhaust???

[Dc2TyP3R]

I was thinking about putting 3" exhaust on my stock 1997 240sx cept I don't know if it will work for the 240 I forgot what they called it because it was stock like there wasn't gunna be enough air flow or pressure or something but if it is possible where can I get the parts and what are all the parts that I need to put 3" exhaust on my 240

[TougeWarrior]

what does this have to do with ur drifting technique, this should be tech discussion

[drift180]

dont get a 3" exhaust unless you have a turbo. It will hurt your car instead of help it. or it will give you worse performance. the reason is you want some backpressure on naturally aspirated cars. If you have a turbo you want as little backpressure as possible. Best way to go is buy a 2.5" full exhaust from one of the leading exhaust manufacturers (HKS, Greddy, Apex, Tanabe, Fujitsubo, RSR) Alot of nice exhaust systems can be found on ebay.

[Realchaos1]

You guys... Seriously, the KA24DE doesn't need back pressure when it's N/A, this has been proven several times over that 3 inch exhaust improves HP.

We are not dealing with a small 1.6L honda engine, plus the KA has a 96mm stock, which doesn't need jack *Censored**Censored**Censored**Censored* for back pressure.

Go for the 3 inch, you will gain HP even without a cold air. If you can't take my word for it, the search the forum for the dyno charts on here and on Zilvia. Hope you can get a good exhaust setup Dc2TyP3R

[Delphince]

I just gutted a semi truck at a scrapyard for mine

[GotNismo?]

i dont know about the 3 inch thing, i mean if its proven than ignore me but back pressure is needed for any n/a motor, its all a matter of how much, i think you will have better results with a 2.5 whatever you do dont delete that cat, we did it to a friend of mines car and lost a whole 1.2 seconds off his quarter mile, so i say a 2.5 would be better for you unless you were looking at swapping in an sr.............................

[drift4ever]

Originally Posted by GotNismo?

i dont know about the 3 inch thing, i mean if its proven than ignore me but back pressure is needed for any n/a motor, its all a matter of how much, i think you will have better results with a 2.5 whatever you do dont delete that cat, we did it to a friend of mines car and lost a whole 1.2 seconds off his quarter mile, so i say a 2.5 would be better for you unless you were looking at swapping in an sr.............................

ok so i'm gonna be putting an sr into my '90 240, and does that mean i want to get a 3" exhaust or what?

[GotNismo?]

for a turbo the bigger the better (no exhaust is actually best) horsepower wise, but when going with a full exhaust system yea 3 inches is awesome, some companies (such as APS) make 3 1/8 or 3 1/2 inch exhaust, pending on your application

on my sr, i have a greddy downpipe (3in), a heavythrottle test pipe (3in), and an espelir catback (3 1/8in piping 5 in tip) and i am very pleased, not to loud and lets the turbo breathe so much more efficiantly

[Chachi]

Originally Posted by Realchaos1

You guys... Seriously, the KA24DE doesn't need back pressure when it's N/A, this has been proven several times over that 3 inch exhaust improves HP.

We are not dealing with a small 1.6L honda engine, plus the KA has a 96mm stock, which doesn't need jack *Censored**Censored**Censored**Censored* for back pressure.

Go for the 3 inch, you will gain HP even without a cold air. If you can't take my word for it, the search the forum for the dyno charts on here and on Zilvia. Hope you can get a good exhaust setup Dc2TyP3R

Yeah I had a 3" on my KA and it definetely added power, just get it, that way if you go turbo, your good to go

[drift4ever]

Originally Posted by GotNismo?

for a turbo the bigger the better (no exhaust is actually best) horsepower wise, but when going with a full exhaust system yea 3 inches is awesome, some companies (such as APS) make 3 1/8 or 3 1/2 inch exhaust, pending on your application

on my sr, i have a greddy downpipe (3in), a heavythrottle test pipe (3in), and an espelir catback (3 1/8in piping 5 in tip) and i am very pleased, not to loud and lets the turbo breathe so much more efficiantly

ok cool thanx, i was gonna make mine a street only at first, then make it track only (maybe) so that should work