I think 20 psi at 500 rpm is fine if that is warm. It's not doing any work there. As long as it comes up quickly. An old rule of thumb is 10 psi per 1,000 rpm. That's in our older engines for street use. 45 psi down the road is fine.

Last edited by Beater of the Pack; 01/16/13 01:30 PM.
"I wonder if God created man because he was disappointed in the monkey?" Mark Twain