When do most of you blower guys find it neccesary to double key your crank for your hub? I am going to be a 15 to 18lbs on my new forged crank and wondering if I should have my ATI balancer double keyed? Thanks for your input.

 

I'm going on the assumption that good pulley alignment and a rock stable blower mounting bracket will get me to (or near) 20 psi with a single key.

I'm at 15 now, but with only 3 strip passes under my belt.

 

I think you will need one pushing +15#'s of boost.. I spun the single keyed balancer off mine quite a few times so far..

--Sean

 

Thanks for the replies, I think I am going to double key my ATI balancer just in case. Thanks again for the replies