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 ...

“Too little compression will usually result in unmet performance expectations. On the high side [too much compression] carries greater risk in tuning and potential component failure if appropriately ...

Compression ratio is a crucial parameter that plays a vital role in the performance of internal combustion engines. A higher compression ratio typically leads to better engine efficiency and more ...

Assuming a properly tuned engine, there are three factors that contribute to poor streetability: long cam duration, high compression ratios, and excessive cruise rpm. Since cam selection is largely ...

Stock car racing engines are all about efficiency. That's because all the simple solutions for making power have either been maximized or eliminated by the rule book. You aren't allowed power adders ...

An engine's compression ratio is the ratio of the volume of gas in the cylinder when the piston is at the top of its stroke (top dead centre, or TDC) to the volume of gas when the piston's at the ...