Thread: 97-03 GTP top speed?

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  1. #1 97-03 GTP top speed? 
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    What's the top speed of the 97-03 GTPs with the governor tuned out?
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  2. #2 Re: 97-03 GTP top speed? 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    I've heard of people hitting 140's but you are just asking for a crash and for the stock tranmission to blow up.

    They don't tend to survive long with WOT 4th gear shifts.

    SMGPFC Member #1
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  3. #3 Re: 97-03 GTP top speed? 
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    Quote Originally Posted by Fivefingerdeathpunch View Post
    I've heard of people hitting 140's but you are just asking for a crash and for the stock tranmission to blow up.

    They don't tend to survive long with WOT 4th gear shifts.
    Good to know lol. Thanks!
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  4. #4 Re: 97-03 GTP top speed? 
    I break stuff selliott's Avatar
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    Are we talking on a stock setup? Im sure there are some turbo guys over 150
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  5. #5 Re: 97-03 GTP top speed? 
    GT Level Member jrb1027's Avatar
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    With rockers headers genv and tune I've had mine exactly 150 multiple times more than I can count actually
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  6. #6 Re: 97-03 GTP top speed? 
    GTP Level Member buickman104's Avatar
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    Yup! It depends on mod level and tune. With my mods at about 120mph it keeps climbing 1 MPH at a time. I am sure someone with a proper tune and a cam or heads will do much better.
    2000 Bronze Metallic GTP
    Power :Gen V, 3.6 pulley, 3 inch down pipe, Power log, FWI,and DHP Power Tuner,
    Handling: Vogtland Springs, GMPP sway bars, STBS, 18" Konig backbone, CTS-V Front brakes and GXP rear brakes
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  7. #7 Re: 97-03 GTP top speed? 
    GrandPrix Junkie SgtMarshal's Avatar
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    I've had mine up to 140. I dont remember what mods I had on it at the time, I dont plan on ever going that fast again.
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  8. #8 Re: 97-03 GTP top speed? 
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    I've had mine to 120+but don't really know haw far it will go as the HUD Just flashes 120?!?!?
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  9. #9 Re: 97-03 GTP top speed? 
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    there was a vid someone had their car on teh dyno and the HUD maxed at 199
    http://youtu.be/prlfiutduha
    bare in mind the car in the vid was heavily modded.
    also it depends on gearing as 3rd gear in 2.93s can go up to like 180 whereas 3.29 3rd goes up to about 125
    going into 4th i heard can shatter at high speeds.
    i've gone 140-150ish with the 2.93s but never again, not with this car's suspension
    old setup-Z7 Turbo Kit w/T66, A2A I/C, stock cam & valvetrain/LS1 MAF/Ported 99TB/PowrTuner/AFC/Devils Own/LS1M Scanner/PRJ FP/42# Injs=12.3@118mph street tires -
    (Sold)BACK TO M90 Vs cam w/3.5" pulley/meth/25* timing+bolt-ons
    01 Z28 A4 HP-self-tuned, LTs, FTRA, 3600stall 12.3@112mph
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