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#1
08-18-2009, 03:21 AM
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something wrong
I Jack
on the last 2 races something wrong happen on elimination,i was on the stage lane on the trans-brake waiting light going down at 4250rpm and 9 psi. for no reason after the 2nd yellow the motor go down to 2000rpm and 3psi then light go green release t-brake the car launch SLOWLY after 2 seconds with the gas on the floor the boost rise and the car push normally. Need help   what happen with that beast.Martin
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2001 GMC sierra buick GN 1987 stageII RPE 400 turbo revers patern spicer 1350 u joint and yokes 33 splines axels with 3:42.fast XFI all job done by cotton's performance. tune by me 9.34 . 1.37 60ft 1/8 5.97@116MPH 9.20 148.79mph 1.419 60fts 1/8 5.91 119.67mph special thanks to cottons performance for the job well done 
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#2
08-20-2009, 01:01 AM
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no idea Jack?
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2001 GMC sierra buick GN 1987 stageII RPE 400 turbo revers patern spicer 1350 u joint and yokes 33 splines axels with 3:42.fast XFI all job done by cotton's performance. tune by me 9.34 . 1.37 60ft 1/8 5.97@116MPH 9.20 148.79mph 1.419 60fts 1/8 5.91 119.67mph special thanks to cottons performance for the job well done
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#3
08-20-2009, 10:33 AM
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Quote:
 Ok, are you backing off the gas pedal at the last second, if you recorded it, does your TPS stay constant or back down? If it does, then it will take a few seconds to build boost back up.... so launching the car at 2,000 rpm will not work well.
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Jack Cotton Cottons Performance 413-789-0531
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#4
08-21-2009, 02:56 AM
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Quote:
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2001 GMC sierra buick GN 1987 stageII RPE 400 turbo revers patern spicer 1350 u joint and yokes 33 splines axels with 3:42.fast XFI all job done by cotton's performance. tune by me 9.34 . 1.37 60ft 1/8 5.97@116MPH 9.20 148.79mph 1.419 60fts 1/8 5.91 119.67mph special thanks to cottons performance for the job well done
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