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First trip with the 08 Sierra

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Old 12-13-2008, 09:45 AM
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Default First trip with the 08 Sierra
08 RCSB Sierra WT 4.8L w/3.73 & G80
has the heavy 17" steel wheels and 245 generals
took off the tailgate and spare
race weight was 4585 w/me

stock:
2.36
10.1@71.58
15.65@86.66

trans/pe tuning:
2.34
9.94@72.7
15.33@89.84
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Old 12-14-2008, 10:03 AM
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not bad for a 4.8
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Old 01-29-2009, 08:23 AM
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got it down to the following, still just tuning, everything else is stock. thinking my first mod will be a 3k converter.

2.338
9.7644 @ 74.50 mph
15.042 @ 91.35 mph
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Old 01-29-2009, 09:35 AM
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Nice times. Are you running a higher octane tune, or still 87?
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Old 01-29-2009, 09:42 AM
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93 octane now. the 15.3 in the original post was on 87.
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Old 01-29-2009, 09:47 AM
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You dropped .6 and are knocking on 14's.....very well done congrats!!
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Old 01-29-2009, 09:27 PM
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Very nice. A converter alone will get you mid 14's if you can get it to hook.
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Old 01-30-2009, 03:01 AM
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un baby cAm .. with high lift. . low LSA . . 212/218 . . * 56X lift . . on a 112LSA. . . . . .WOT . .
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Old 01-30-2009, 06:39 PM
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Nice runs and tuning!
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Old 01-31-2009, 03:54 PM
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Originally Posted by zippy
Very nice. A converter alone will get you mid 14's if you can get it to hook.
yeah, with my crap 60 ft I think it will make a big difference. we will see!
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