A remote starter switch and a top-quality, screw-in-type compression gaugeâ such as these models from Sears, Roebuck & Companyâ can be used to measure the pumping efficiency of an engine, as well as ...

Horsepower and torque are all about cylinder pressure. Compression ratio, cam timing, cylinder head flow, and all the rest of the goodies that go into an engine aren't worth much if what enters the ...

To help detect and pinpoint faults in ailing motors there are various aids, such as warning lights on the dash and on-board diagnostics. But there are a couple of simple tests that give us a pretty ...