Sierra RST Stock 4.8L Turbo: 617HP/623TQ
#44
formerly 2004RST (changed 11/19/2012)
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From: Spring Hill, FL
how much longer you really think bottom end will last though? i mean no doubt the crank will hold but i think piston rings should be about on their way out after probably what 7 - 10k miles?
#45
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From: Charleston, SC
I really dont know. I've turned it down to about 13psi for daily driving. However, I've added more power since the dyno but thats for another thread. Just a little extra when used on kill mode. 
I think a lot of it is driving style. I by no means take it easy, but I don't get crazy either with abuse. I'd say most times I take the truck out (daily) I will usually do a single gear pull to put a smile on my face and get a wink from the girlfriend. Then the rest the time is cruising.
Skyhighsami: the truck does pull good even out of boost, on E85 I added about 5 degree timing on the 1k-3k area and that really picked it up. I will say that at the 4k mark, its "game time" for power.

I think a lot of it is driving style. I by no means take it easy, but I don't get crazy either with abuse. I'd say most times I take the truck out (daily) I will usually do a single gear pull to put a smile on my face and get a wink from the girlfriend. Then the rest the time is cruising.
Skyhighsami: the truck does pull good even out of boost, on E85 I added about 5 degree timing on the 1k-3k area and that really picked it up. I will say that at the 4k mark, its "game time" for power.
Last edited by foose04; Jul 20, 2010 at 12:25 PM.


