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help find me some power

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Old 03-04-2011, 05:07 PM
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ok guys, spring is almost here and i am looking for some more hp out of my car.

last dyno session resulted in 325hp and 349tq. does this seem low for my mods? what can i check/change to get some more horsepower. My buddy has an 01 m6 and did 329hp 340tq with just a lid and a catback.

my mods are:
stock internal 98 with auto trans
mac mid lengths and catted y
corsa catback
ls6 manifold
85mm lid
85mm slp maf
ported tb
ssra
tune from sponsor on here

i feel like i should have been a little higher. are the macs holding me back? is the slp maf really that bad? car only has 40k miles on it, could plugs be bad?

any ideas would really help!
Old 03-04-2011, 10:47 PM
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Underdrive pulley, long tubes, cam it and it is low. Plugs won't hurt either!
Old 03-05-2011, 03:15 AM
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Originally Posted by Vader TA
ok guys, spring is almost here and i am looking for some more hp out of my car.

last dyno session resulted in 325hp and 349tq. does this seem low for my mods? what can i check/change to get some more horsepower. My buddy has an 01 m6 and did 329hp 340tq with just a lid and a catback.

my mods are:
stock internal 98 with auto trans
mac mid lengths and catted y
corsa catback
ls6 manifold
85mm lid
85mm slp maf
ported tb
ssra
tune from sponsor on here

i feel like i should have been a little higher. are the macs holding me back? is the slp maf really that bad? car only has 40k miles on it, could plugs be bad?

any ideas would really help!
auto trans will dyno lower than a manual and those mid length headers are not as good as long tubes. Looks pretty right on for the mods you have tho give or take a little above or below.
Old 03-05-2011, 08:08 AM
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how much would i gain if i switched over to pacesetters or tsp long tubes ?
Old 03-05-2011, 02:59 PM
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Originally Posted by Vader TA
how much would i gain if i switched over to pacesetters or tsp long tubes ?
I would not be certain how much but there should be a decent little gain. The gain would be everywhere in the powerband too.
Old 03-05-2011, 03:02 PM
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If it were me I'd get long tubes and o/r y. A4s dyno lower than m6s so keep that in mind.
Old 03-07-2011, 08:40 PM
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well dropped it off at RPM for a 150 shot lol




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