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  #1  
Old 03-21-2006, 10:10 PM
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GReeKGT GReeKGT is offline
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Cool Max speed with DHP PCM!!!????

This is for people with the DHP pcm, i was wondering about how much faster can you go in your GT/GTP with the speed limiter removed... I know the gt tops at about 108-110(stock..97+) but for the gtp, dont know... so yeah max speed gotten from you crazy people..
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Old 03-26-2006, 10:17 PM
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Re: Max speed with DHP PCM!!!????

I had my gt up to 128 but thats with 200 lbs in the trunk "subs" only things i did was magnaflow,k&n
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Old 03-26-2006, 11:16 PM
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Re: Max speed with DHP PCM!!!????

If the limiters removed, you should be able to break the speed-o for sure.
Top end would be what they read on the speed-o, if your tuned good, and everythings working right.
remember safty first!
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Old 03-27-2006, 12:18 AM
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Re: Max speed with DHP PCM!!!????

A lot of Grand Prix GTs and GTPs have a Heads Up Display (HUD) display with a digital speedo readout so you will be able to see what your top speed is beyond the regular analog speedometer.



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Old 03-27-2006, 12:55 AM
GTPpower GTPpower is offline
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Re: Max speed with DHP PCM!!!????

Watch out for deer

I think I've heard gt's doing about 130-135.
GTP's 145-150.
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