Top End!?!?!
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Top End!?!?!
What mods can be done to the VQ with out going FI to get better top end? i have a 04 5at g35 coupe with intake, TD exhaust, gutted cats, motordyne 5/16 spacer, and uprev tune (which didnt help my car much), and 3.53 pumpkin. After all these mods the car is fast 0-100 but after that it seems to die out once i hit 4th gear. What mods can i do to get better top end besides cams? would an x pipe instead of h pipe help any? any help would be appreciated.
thanks in advance!
thanks in advance!
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the gearing in your 5AT (maybe 3.9 or 4.08) would be the best help 100+. nitrous would be BAD, too much strain 100+ for nitrous, much better chance to wreck engine
Last edited by Hoooper; 02-03-2008 at 08:09 PM.
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Originally Posted by Hoooper
the gearing in your 5AT (maybe 3.9 or 4.08) would be the best help 100+. nitrous would be BAD, too much strain 100+ for nitrous, much better chance to wreck engine
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thats up from about 3k at 80 right? probly as high as 3500, but i wouldnt think past that. obviously, the absolute best thing would be a turbo setup, but after that its cams and a good IM if you dont want higher cruising RPMs
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shorter gears probably won't help top end... it helps acceleration though - I have 3.692 in my AT (3300rpm @ 80 mph)... Cams are probably the best bet for top end, but OP doesn't want that route... 1/2" spacer over 5/16" may help a little (that’s what I run - peak dyno is usually pretty good)... other than that, more Osiris tweaking?...
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Depends on what he means by "top end" i guess. does he mean from like 6k to redline, or does he mean like over 100 miles per hour...my gears REALLY helped from 80-120. but yeah....
1/2 inch spacer, test pipes, and a UTEC with Z-tube and 3 inch mass air flow sensor and a good tune by a reputable Utec tuner will REALLY help the top end. whered you find 3.692 gears? never heard of em.
1/2 inch spacer, test pipes, and a UTEC with Z-tube and 3 inch mass air flow sensor and a good tune by a reputable Utec tuner will REALLY help the top end. whered you find 3.692 gears? never heard of em.
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Originally Posted by ke0ki2k
Depends on what he means by "top end" i guess. does he mean from like 6k to redline, or does he mean like over 100 miles per hour...my gears REALLY helped from 80-120. but yeah....
1/2 inch spacer, test pipes, and a UTEC with Z-tube and 3 inch mass air flow sensor and a good tune by a reputable Utec tuner will REALLY help the top end. whered you find 3.692 gears? never heard of em.
1/2 inch spacer, test pipes, and a UTEC with Z-tube and 3 inch mass air flow sensor and a good tune by a reputable Utec tuner will REALLY help the top end. whered you find 3.692 gears? never heard of em.
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would i benefit in going from uprev osiris tune to a utech? i dont understand how it is that i only got <4 hp out of a tune???? most people see atleast 12whp out of it.
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Originally Posted by GrayG35
would i benefit in going from uprev osiris tune to a utech? i dont understand how it is that i only got <4 hp out of a tune???? most people see atleast 12whp out of it.
Last edited by gothchick; 02-04-2008 at 07:02 AM.
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