Comp xr275hr
#21
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Join Date: Sep 2006
Location: PG BC CDN
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I have no numbers but this cam is what I expected. As the sales flyer says strong midrange and excellent topend. This is an odd install because of the stock exhaust manifolds. Lots say its a no no, but at 100kmh and 1800rpm is still easy when the truck is empty... and at 6500rpm power has not peaked. I used the yellow GM springs so lets not push too hard, yet. After dialing in the transmission every shift is where I want it, except when I want the standard clutch of a manual. In hindsight I should have bought a 4.8 5spd
BTW The 1-2 shift at 6500 is 85km. 50mph?
I'll find a videohandler and in the mean time let PCM to its own fine tuning.
BTW The 1-2 shift at 6500 is 85km. 50mph?
I'll find a videohandler and in the mean time let PCM to its own fine tuning.
#24
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money money money makes the world go around
I want to dig back under the valvle covers to check the rocker arms. What did GM use to lock the rocker bolts in place. I don't think lock tight in aluminum is a good idea.
I want to dig back under the valvle covers to check the rocker arms. What did GM use to lock the rocker bolts in place. I don't think lock tight in aluminum is a good idea.
#27
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Join Date: Jan 2007
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ok one more thing do i need the 5/16 or the 3/8, and what else should i buy for the cam install (i already have 918 springs), yes ive searched, just havent found what im looking
one more thing this is for a 5.3 not the ls2
thanks
one more thing this is for a 5.3 not the ls2
thanks