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GT40 Heads and DYNO SHEETS

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Old 03-12-2007, 09:03 PM
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w8less
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Default GT40 Heads and DYNO SHEETS

if you have GT40 heads and dyno proven numbers post them up. also post your set up
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Old 03-12-2007, 09:08 PM
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ih8chevy
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Default RE: GT40 Heads and DYNO SHEETS

is this a response to the thread below?
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Old 03-12-2007, 09:14 PM
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Default RE: GT40 Heads and DYNO SHEETS

no i am curious. my brother just got a 91 notch with gt40 heads fcam 24 lbs injectors c&l 76mm cai with a stock intake and he thinks the car is making 350rwhp. i am trying to prove a point to him. he also says its faster than my old 95gt and i highly doubt
sorry if thats the impression

do you have or not where i can fnid some?
i posted this because i know a lot of people on this forum have them
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Old 03-12-2007, 09:21 PM
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ih8chevy
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Default RE: GT40 Heads and DYNO SHEETS

all i kno is adder is makin 270 wheel wit his stock cobra motor.
and im sure if u emailed thumper he could give u a huge list of dyno sheets.
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Old 03-12-2007, 09:24 PM
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w8less
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Default RE: GT40 Heads and DYNO SHEETS

so u believe his claim about the hp? do u think it could have beat my car?
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Old 03-12-2007, 09:31 PM
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ih8chevy
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Default RE: GT40 Heads and DYNO SHEETS

wo i dont believe ur bro. stock intake 350 rwhp, f*ck no.lets say this in order to get 350 rwhp wit afr's u need a holley intake and a decent cam. there is no way in hell he has that. he has close to 270-275. if he got a good intake than maybe 290-300 would be very doable. but i def think ur car was faster.
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Old 03-12-2007, 09:33 PM
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Default RE: GT40 Heads and DYNO SHEETS

ORIGINAL: Jasperstang308

no i am curious. my brother just got a 91 notch with gt40 heads fcam 24 lbs injectors c&l 76mm cai with a stock intake and he thinks the car is making 350rwhp. i am trying to prove a point to him. he also says its faster than my old 95gt and i highly doubt
sorry if thats the impression

do you have or not where i can fnid some?
i posted this because i know a lot of people on this forum have them
No way in hell it makes 350rwhp. It's probably closer to 250rwhp.
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Old 03-12-2007, 09:36 PM
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Default RE: GT40 Heads and DYNO SHEETS

i told him 240 so i wasn't that far off. well it also has lt with a prochamber and flows but that shouldn't make that much of a difference
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Old 03-12-2007, 09:43 PM
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Default RE: GT40 Heads and DYNO SHEETS

ORIGINAL: Jasperstang308

i told him 240 so i wasn't that far off. well it also has lt with a prochamber and flows but that shouldn't make that much of a difference
Heres my ONLY existing dyno sheet. I can not prove mt 270hp because I dont have the sheet. Another trip to the dyno is soon comming.

gt-40 heads, cobra cam, cobra intake.
BBK equal shorties, BBK o/r X and MAC pro dumps
UDP's, 70mm tb, CAI, 15° timing, and a 15.5:1 air fuel ratio.
253.5 rwhp and 294.7tq


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Old 03-12-2007, 09:46 PM
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jtmustang
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Default RE: GT40 Heads and DYNO SHEETS

350 theres no way with the stock intake. i am doing my motor right now ported cast gt 40's tfs intake,1.6 rollers,tfs 1 cam,full exhaust,ac/smog delete,underdrive pullies,65mm tb,73 c&l,.030 forged trw's,hi flow water pump and im hoping for like somewhere between 270-280 to the wheels do u think those numbers are close sorry for sidetracking your thread jasper just curious. thanks
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