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Old 07-11-2004, 05:24 PM   #21
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Default First GXP Dyno Numbers

I stand corrected.
Peace
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Old 07-11-2004, 05:32 PM   #22
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Default Re: First GXP Dyno Numbers

Quote:
Originally Posted by marlon
I stand corrected.
Peace
Thanks for pointing out possible problems its always possible something gets overlooked.
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Old 07-11-2004, 05:44 PM   #23
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Did you "Tune" the PCM by doing a few 0-60 runs prior to the run?
You gotta take it outta "granny mode"
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Old 07-11-2004, 08:43 PM   #24
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with 24% loss your closer to 265ish hp. i say let it break in, SLS'* with miles on them dyno higher than that

at the same time, with that engine and that gear ratio, you should be able to lay some smoke, have you looked into the computer yet? wonder if its as bad as the new 3.8sc computer in the 2004 gtp'*...
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Old 07-11-2004, 08:54 PM   #25
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Quote:
with 24% loss your closer to 265ish hp. i say let it break in, SLS'* with miles on them dyno higher than that

at the same time, with that engine and that gear ratio, you should be able to lay some smoke, have you looked into the computer yet? wonder if its as bad as the new 3.8sc computer in the 2004 gtp'*...
Hate to say it but for that and a few more reasons, I will not buy another GM product.
Hope you're listening Mr. Goodwrench.
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Old 07-16-2004, 08:02 PM   #26
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Quote:
Originally Posted by BonneMeMN
No replacement for displacement
Amen...... but a little forced induction can go a long way...
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Old 07-17-2004, 04:22 PM   #27
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i'd take the displacement any day.. the 3.8 exhaust is raspy .. i want growl!
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Old 07-17-2004, 07:18 PM   #28
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Quote:
Originally Posted by Rogue
We had forced air directly to the intake and a larger high CFM fan to take away engine heat. It wasnt a 7,000 fan pumping 75 mph winds, but it was adequate. I would suspect more the calculations the dyno used on ambient temp and moisture to calculate HP before I did wind speed although Scott says the GXP feels slow on the street and he can't get his tires to spin even standing on it from a dig.

The autotap log we did on his car showed him getting knock, im some cases quite a bit. He may have some sort of restriction in the engine due to an engine built on a Monday or Friday (not quite right) or it may have just been the heat of the day (cars were regestering about 90F) but somethign was off on it.

those mondays and fridays sure can be killers
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