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GTA TECH Want to discuss technical topics about your GTA.... engine tuning, mechanical upgrades, problem areas, etc.? Then post it HERE!

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Old 03-20-2006   #1
Cj87GTA
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another one.... Tuning

ok so i'm wondering. i have a place that lets you do 3 dyno pulls and includes tuning each time. would this help much at all if i had the shop tune my stock car? the only performance upgrades i have are exhaust and suspension.... i'm thinking headers soon. but anyways, how much help would tuning do do you think?
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Old 03-20-2006   #2
MunsonGTA
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GTA Year: 1987
GTA Engine: Custom
Re: another one.... Tuning

i'd wait until you atleast do the headers, because after you do those you'll need a retune anyways.
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87 GTA: Forged 408 LSX short block, TEA stage 2 cnc ported 243 heads, BTR Stage 3 stroker cam, Fast 102 intake, NW 102 TB, Longtube headers, custom 411 ECM, custom harness, custom tuned, Performabuilt stage 2 4l60E with PTC 2800 stall, 9 bolt rear with 3.70 gears and TAP girdle.

11.16 at 123 mph.
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Old 03-21-2006   #3
twobirds
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Re: another one.... Tuning

You can go and get some base numbers, but there is no need to dyno tune your very stock car. Do some good mods(headers mentioned) free tpi mods,AFPR things like that then....maybe then have it tuned on the dyno.
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Old 03-21-2006   #4
longtrackrmk
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Re: another one.... Tuning

Quote:
Originally Posted by twobirds
You can go and get some base numbers, but there is no need to dyno tune your very stock car. Do some good mods(headers mentioned) free tpi mods,AFPR things like that then....maybe then have it tuned on the dyno.
What is the stock HP at the wheels for a tpi 5.7?
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Old 03-21-2006   #5
vejatabul
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Re: another one.... Tuning

i made 229whp and 328wtq(not really wheel torque, but its easier to say).
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Old 03-21-2006   #6
longtrackrmk
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Re: another one.... Tuning

Quote:
Originally Posted by vejatabul
i made 229whp and 328wtq(not really wheel torque, but its easier to say).
I thought a stock motor was only 220 to 240 HP how can one make that much HP at the wheels?
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