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went to the track and not happy

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Old 10-08-2009, 03:06 PM
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got the new cam installed and tuned , a/f is around 11.5-7 the truck felt good till i made it a dual 3" xpipe with 2 magnaflows and the truck felt weak, i thought it was just me , well took it to the track yesterday 12.1@112mph with a 1.77 60ft , thats was best all motor .then gave it a 100 shot nos pass 11.6@120mph 60ft was 1.74 , same times as the gt2-3, what can be wrong ? do yall think the exhaust is killing me?




old cam gt2-3 207/220 570/575 118lsa
newcam patrick g spec 231/247 617/623 115lsa
Old 10-08-2009, 03:17 PM
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The blower is out of steam.
Old 10-08-2009, 03:17 PM
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No cam expert but it looks like you went from one end of the spectrum to the other.

Can you post full slips? Final ETA doesn't show if you moved the power band or if there is another issue.
Old 10-08-2009, 03:26 PM
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The speed at the traps is incredible, you should be in the lower 11's at that speed. What converter? Ahh i see a 3600 PI converter
Old 10-08-2009, 03:28 PM
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Originally Posted by SincalT/A
The blower is out of steam.
No way, his 60' sucks but his top end is hauling ***! He's not getting off the line fast enough.
Old 10-08-2009, 03:47 PM
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Originally Posted by trever1t
No way, his 60' sucks but his top end is hauling ***! He's not getting off the line fast enough.

IMO the blower is the single biggest restriction on his setup.Think about it 6.0 ported heads,big cam,decent size converter(to big for 6.0 112).Point is this combo is over built for the 112.Now throw a TVS2300 on there and without a doubt the truck would run just as fast without the nitrous.Probably better.

I agree there is also more to be desired in the 60ft.
Old 10-08-2009, 03:50 PM
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i'd think the blower would act as a restriction on the top end, not off the bottom where the 112 really shines
Old 10-08-2009, 03:58 PM
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Your right the problem is that truck never see's the bottom where you can explote the 112's performance.I bet his flash stall is in the 4000's on the bottle PI converters are noturious for stalling higher then rated.
Old 10-08-2009, 04:47 PM
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but how about on the runs without nos what do yall think about em should i go back to y pipe ? and try it again
Old 10-08-2009, 05:01 PM
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You are hurting off the line. Take .2 off the 60' and you will pick up about .4 in the et. That would put you in the low 11s, which is where you should be with a 120 mph trap. Are you spinning off the line?


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