what size exhaust pipe to use? here is the answer
12-04-2011, 08:14 PM
#1
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what size exhaust pipe to use? here is the answer
I was watching Gearz yesterday and here is what Stacey David said about exhaust pipes , if It's wrong or is a repost please let me know, thanks.
150hp 2" single pipe exhaust
250 - 350hp 2 1/2" single or dual exhaust
450+ hp 3" single or 2 1/2" dual exhaust
550+ hp 4" single or 3" dual exhaust
150hp 2" single pipe exhaust
250 - 350hp 2 1/2" single or dual exhaust
450+ hp 3" single or 2 1/2" dual exhaust
550+ hp 4" single or 3" dual exhaust
Last edited by 00maxima-600rr; 12-06-2011 at 02:28 PM.
12-04-2011, 09:48 PM
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Someone has been huffing waaaaay too much exhaust fumes...
12-05-2011, 10:59 AM
#12
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yesterday I was watching GearZ with Stacey David and I just wanted to share that info with you, thats all.
12-05-2011, 11:02 AM
#13
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hahahah funny jokes .......noooot!!
If ill see you ****!
If ill see you ****!
12-05-2011, 01:04 PM
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Those small block Chevy's he wrenches on that breathe through one intake and exhaust valve and rev to 5,500 rpm might apply to that old exhaust chart, but not so much to more modern cars with newer technologies, 4 valves per cylinder, variable valve timing, variable intake manifolds, and computerized fuel and spark timing.
Last edited by T_Behr904; 12-05-2011 at 01:07 PM.
12-05-2011, 01:58 PM
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Last edited by T_Behr904; 12-05-2011 at 10:26 PM.
12-05-2011, 09:55 PM
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Last edited by T_Behr904; 12-05-2011 at 10:27 PM.
12-05-2011, 10:38 PM
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You can't just make some random link between exhaust diameter and hp and think its universal. Regardless of what "backpressure" "experts" say (mostly ppl who can't afford a 3") I've seen everything from hondas to maximas to audis all see gains from a 3" both N/A and FI. People with cutouts see gains. Its a trade off between sound and power BUT this isn't always true. For instance take a stock Maxima and put a cutout and you probably won't see any gains much (depending on location of cutout). You have to remember velocity plays a key role. A 3" by itself probably won't see much gains over a 2.5" but when you start adding all kinds of other mods it really compliments it well and frees up that extra power. I don't believe in crap about backpressure and too big is too bad because your engine is going to push that exhaust out regardless so let the fuking thing breathe.
12-05-2011, 10:44 PM
#40
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You can't just make some random link between exhaust diameter and hp and think its universal. Regardless of what "backpressure" "experts" say (mostly ppl who can't afford a 3") I've seen everything from hondas to maximas to audis all see gains from a 3" both N/A and FI. People with cutouts see gains. Its a trade off between sound and power BUT this isn't always true. For instance take a stock Maxima and put a cutout and you probably won't see any gains much (depending on location of cutout). You have to remember velocity plays a key role. A 3" by itself probably won't see much gains over a 2.5" but when you start adding all kinds of other mods it really compliments it well and frees up that extra power. I don't believe in crap about backpressure and too big is too bad because your engine is going to push that exhaust out regardless so let the fuking thing breathe.
