THE COMPRESSION GAUGE This gauge is designed to indicate the individual pumping ability of each cylinder of an engine at cranking speed. Consequently, to get a meaningful reading, intake flow ...

Before porting and shaving began, we performed a cranking compression test and were disappointed to learn there was only 100 psi at each cylinder.

We show you how to balance power production on your modular motor with proper cam timing and compression tests. - Muscle Mustangs and Fast Fords Magazine ...

In fact, the recorded drop in cranking compression indicated that our test engine could tolerate a good measure higher compression ratio with this cam.