The compression ratio isn’t just a number: it’s one of the greatest determining factors in engine building. Compression ratio determines the type of fuel, how much boost, and has a significant ...

Basic mathematics for the car enthusiast: that's this month's shop series as we get into readin', writin' and arodthmetic Like a 9/16-inch box-end wrench or a piston ring compressor, basic mathematics ...

With the combustion chamber being the root of all horsepower, it only makes sense that you start spec'ing an engine build there. One of the key variables in engine building is compression ratio, or ...