Hey all,

I road race and for 20 minutes my car averages 4K RPM and common to stay at 6K RPM. I am seeing overoiling in the heads. Would using a different PR with smaller oiling holes be the way to solve it?

Thanks,
Ben

 

Is it overoiling or is it bad drainback?

I would be looking at ways to let it drain more freely, my understanding is this is yet another weak point in AFRs.

 

Yeah work on the drainback. If you slow down the oil flow to the head the next post you make will be about broken springs and fragged rocker trunions.

 

Agreed it is drainback since the AFR's seem to have smaller drain ports.

So...what ways can you get it to drain more freely?