Power limits on stock 5.3L 2001 with 90k miles

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Jul 23, 2009 | 10:00 AM

#21

nonnieselman

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From: Crystal Springs, MS

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...

Jul 23, 2009 | 10:07 AM

#22

NegraRCSB2X4auto

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From: Texas

Quote:

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.

Jul 23, 2009 | 10:13 AM

#23

nonnieselman

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From: Crystal Springs, MS

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.

Jul 23, 2009 | 10:22 AM

#24

NegraRCSB2X4auto

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From: Texas

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.

Jul 23, 2009 | 10:38 AM

#25

05RST2NV

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From: Brandon, MS

Quote:

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

Jul 23, 2009 | 11:07 AM

#26

Bullitz400

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From: Northern IL

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.

Jul 25, 2009 | 07:48 AM

#27

05RST2NV

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From: Brandon, MS

Quote:

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??

Jul 25, 2009 | 07:29 PM

#28

NateZQ8

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From: Iowa

Its not a pain to change the rod bolts, but I would try some plastigage to make sure your clearances are in range

Jul 25, 2009 | 08:28 PM

#29

NegraRCSB2X4auto

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From: Texas

Quote:

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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