490RWHP, '04 GTO A4 w/8psi Procharger - Pontiac GTO Forum
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post #1 of 2 (permalink) Old 12-18-2005, 11:39 AM Thread Starter
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490RWHP, '04 GTO A4 w/8psi Procharger

Hats off to STPerformance in Savannah, GA for their excellent tuning. I made huge improvements with just a swap from the standard 7 psi pulley to a 8 psi pulley and a dyno tune.

Here's a link to my first dyno pull, only put down 375 RWHP.

Dyno 11-20-05

Here are my scans of todays dyno results. I'll let the pictures tell the story. Needless to say I am extremely happy. :bubbrub

John Millican is offline  
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post #2 of 2 (permalink) Old 12-19-2005, 04:20 PM
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Thats impressive!!!!
1BadGoat is offline  
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  Pontiac GTO Forum > The 2004-2006 GTO > Service, Maintenance and Technical Discussion

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