Well people I am nearing the 1000 WHP mark, but I am very cautious about what the tolerance is. I'm currently at 938whp and 751tq, I believe that's pretty close to 1000 crank horse power. Has anyone broken a crankshaft? Oh and yes my car is a VQ35HR and the block is sleeved.

Thanks guys

Manny

 

You're over the 1000bhb area. Probably 1050-1110bhb area.

 

Oh my.... maybe I should just tune it down a bit after my GTR manifold conversion...

 

considering scott porter has ran 2500 hp on stock de cranks on some of his backup engines i wouldnt worry. theoretically the HR crank should be stronger with the larger bearing journals.

 

It's a very tough Crank, at your power level I would not worry.