Engine knocking, or detonation, occurs when fuel in the cylinders ignites unevenly, causing metallic pinging sounds, reduced ...

Big engines like the 707-horsepower monster Dodge put in the Challenger Hellcat or Volvo's little four-cylinder that makes 425 ponies get all the attention these days. But there are millions of tiny ...

Boost! For fixing the stock torque and horsepower curves on the dyno chart and roasting rubber with a tap of the throttle, nothing beats it. And for producing a big kick in the seat when you punch it, ...