Engine compression ratios have become a hot topic ...

You're probably familiar with the standard combustion process that powers most cars, but some engines use a more efficient ...

We may receive a commission on purchases made from links. While browsing auto repair and maintenance tools at your local parts store, you've likely come across compression testers like the Orion Motor ...

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 ...