Nitrided Crank?

[HR31-PASSAGE]

Hey guys so I'm doing a freshen up & my crank may need to be machined & oversized bearings used, will the crank need to be re-nitrided? Wat power are they capable of if if hasn't been re-nitrided?

Roughly what price does it cost?

Cheers

[GTRPSI]

Depends on how much you take off, its only a thin surface finish.

I wouldn't bother renitriding, if your running a little more power one grind down is fine, if you running more drop another crank in.

If its a R31 with a Rb30, get another crank, heaps around for next to nothing.....would cost more to re nitrate the old crank than to buy another good second hand one.

My original RB30 crank was one size down on my build, i didnt want to take the risk, got another perfect one that only needed a light linish for $80 and it was already grub screwed.

[HR31-PASSAGE]

Shit should of said this first haha

It's an rb25/30 making 400hp at the moment but will prob only be chasing around 550hp max out of this engine. It's all been balanced hence why I wanna keep this crank.

[GTRPSI]

You grind it, you really should rebalanced it in a performance situation.

I think your answers are all there now