I have Honda Challenge h2 prepped b16a with factory pistons and Hastings rings. What should I gap my rings at? The rings my machinist gave me to run are at the service limit for specs. I will also be competing in some endurance races. Should I just follow factory specs????

 

I've moved your thread to the All Motor forum. You'll get a better response here.

Factory specs should work well in what's pretty much a factory spec engine.

 

hasting rings always seem to be on the loose side right out of the box