Quote: On a hi-$$ race-engine like this ? ... with low-drag rings ?? .....
30-40 ....
Perhaps if the valvetrain wasn't installed. But put the valvetrain on and the breakaway will be significantly greater than that as the valvesprings compress then lesser as the valvesprings relax. Especially if the springs are heavy psi rated.
How was the rotational torque tested? Valvetrain or not?
