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Power limits on stock 5.3L 2001 with 90k miles

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Old 07-23-2009, 10:00 AM
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im on complete stock bottom end, just a cam/springs/pushrods. on 10psi and 50 shot
i think i might need to get some rod bolts...
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Old 07-23-2009, 10:07 AM
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Originally Posted by nonnieselman
as long as your tune is safe, id worry about the transmission and rear end.
500 to the wheels isnt much for a stock bottom end as long as you dont get greedy with the timing.
17 deg time 10.5 afr with meth.
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Old 07-23-2009, 10:13 AM
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yea thats pretty good.. im runnin 15* on 10psi and 50 shot with meth 11.0 AFR. It pulls some serious MPH, but i gotta get it off the line now.
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Old 07-23-2009, 10:22 AM
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I had it at 11.0 and it felt like it pulled harder but the dyno guy told me it's better to run 10.5 because it's only a couple of hp. But i truly don't believe i would feel the diff with only a couple of hp. when I cools down i'll see what it will run at the track with both afr.
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Old 07-23-2009, 10:38 AM
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Originally Posted by nonnieselman
im on complete stock bottom end, just a cam/springs/pushrods. on 10psi and 50 shot
i think i might need to get some rod bolts...
It sure wouldnt hurt! Lol
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Old 07-23-2009, 11:07 AM
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Is it pretty easy to change rod bolts since you just have to pull the pan or is it a PITA just to get to that.
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Old 07-25-2009, 07:48 AM
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Originally Posted by NegraRCSB2X4auto
yes stock bottom. only has push rods cam heads and injectors everything else on engine is stock.
What kinda 1/4 mile times you running??
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Old 07-25-2009, 07:29 PM
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Its not a pain to change the rod bolts, but I would try some plastigage to make sure your clearances are in range
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Old 07-25-2009, 08:28 PM
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Originally Posted by 05RST2NV
What kinda 1/4 mile times you running??
been to the 1/4 once 12.5 at 107. spinning and 1/8 7.7 spinning too. I just want a 11.9.
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