git_sum

iTrader: (10)

Well i planned on just doing a head/cam swap on my T/A but since it's already got 85,000k miles i figured i'd just go ahead and refresh the whole thing this winter. Planning on going with new rods(not sure which ones yet), and Mahle pistons, all being forged and later running 150hp shot of n20. Which leads me to my question, how much HP can a stock GM crank handle? Say i get the stock crank magnafluxed, cryo treated, and ion nitrated how much would it be able to hold? Or would I be better off by getting something like a cheaper Eagle crank? I've heard good and bad things about the Eagle cranks, is there anything to them not being worth a damn?

gen 3 bu

iTrader: (2)

harlan in the forced ind forum is running a calculated 1000+ rwhp on a stoock ls1 crank and the stock rads can go 600 rwhp

Grimes

iTrader: (3)

Well, I have never heard of one breaking, if that means anything to you

git_sum

iTrader: (10)

1000rwhp , that's all i needed to know

y2khawk

iTrader: (5)

It's been verified

goober35

iTrader: (1)

I have seen stock cranks break at stock HP (probuble a fault in the metal) and then i have seen a crank handle 750rwhp on the bottle. You will be find on a stock crank even if you spray the motor with a 200-400hp.

gen 3 bu

iTrader: (2)

sorry harlan, the last time i talked to you about it you said it was estimated.

y2khawk

iTrader: (5)

It's been verified since then, just getting ready for Thunder

Scalpel

iTrader: (4)

I can guarantee that Harlans crank (stock crank) has seen WELL OVER 1000 FWHP.

Basically, you ain't gonna break it assuming the car is setup and tuned correctly.

Brian Tooley Racing

iTrader: (13)

I made 600 RWHP on stock crank and rods, went 9.80's. Changed the heads, intake, etc, and then made 700 RWHP, never hurt the engine, it's all in the tune. Cold plugs (TR8), little timing (< 20 deg) and lots of octane (100+). I just saw a post from one of our customers that had the same basic combo I had, I'll include a link. Good luck.

https://ls1tech.com/forums/single-digit-club/232590-9-71-138-1-32-60-a.html

gator's 99TA

iTrader: (2)

i would trust it to 700 rwtq. hp is not an issue. and lets not compare nitrous hit versus a turbo hit on the rotating assembly. differnet world.