Highest RPMS without touching internals?
#4
TECH Fanatic
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well, with ARP rod bolts I have had mine to 7800 several times, and a couple over rev's from the clutch sticking to 8200... stock crank rods and pistons out of a 08 LY6 6.0L put into a 07 GMPP block.
as far as power, it dynoed 580 at 7400, and thats prolly 500+ at the wheels and I have ran 2 bottle's of a 150 shot through it too.
tough enough for ya??
as far as power, it dynoed 580 at 7400, and thats prolly 500+ at the wheels and I have ran 2 bottle's of a 150 shot through it too.
tough enough for ya??
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#11
im in the same boat with warranty bolt ons for me right now.. and im debating nitrous for the time being.. but as soon as warranty is up in 2 years.. im doing rebuild with cam and heads! 550whp in my future with nitrous on the side plenty good for me..
#14
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Location: Westbank of N.O.
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It's more of a function of piston speed, not rpm. For example. the ls7 has a 4" stroke, piston speed is higher at 7200 rpm on that motor than say 7500rpm on a stock ls1. U are moving the piston at a given speed, and then instantly making it change directions and still move at that speed. This is where the weight and durability of the rods and pistons come in to play. Heavy parts and weak bolts= failure. Gm used ti rods in the ls7 and prolly shed 100+ grams of reciprocating mass, this increased high-rpm durability. Another thing to consider is HOW LONG u want to spin it that high, the oiling system in these motors will not tolerate prolonged high-rpm w/o modification. Oil pressure goes away and all bets are off, your engine will now fit loosely in a 5-gallon bucket.