Compression tested the motor
I went into the garage tonight and compression tested the motor. At 35*F cylinder numbers 1 and 3 cranked at 130 and 135 psi with the throttle wide open and a brand new DieHard battery. Ran the car for about 15 minutes until hot and repeated the test. This time cylinders 1 and 3 cranked at 145 and 150 psi. Out of curiosity I walked over to my 67 GP with a stock rebuilt YH 400 (670 heads) and it cranked at 175 psi cold with a 3 year old battery. That car runs well on 93 Octane. I am realizing I will have to upgrade the exhaust also now to 2 1/2 inch and the log manifolds should go too.
|