Max Safe RPM For This Engine
I have the rev limiter set to 7500, but it hits the limiter so easily, that I'd like to raise it to 8000. The engine makes max HP at 6800 RPM and the drop off is not fast at all. I need another dyno test to get a better idea because the last dyno test was done with retarded timing.
This is a small journal 327, .030 over with Crower Sportsman rods using 3/8" bolts. Piston clearance is .0055" because the block is 3/4 filled with Hard Blok, piston to head clearance is .035", static compression is 11.3:1, horsepower is 475 @ 6800. Oil pump relief spring is 70#, using 20W-50 Castrol.