The 22R-E straight-four engine is one of the best examples that we can reference, as Toyota has applied it to some of its ...

Normally, you don’t have to maintenance the camshafts or valves in a Toyota VVTi engine's lifetime, as they are built to last for a long period. However, if something goes wrong and you need to do it, ...

If you feel your Toyota VVTi engine low on power, one cause must be the combustion chamber’s tightness. And there are two things that can go wrong with it - loose valves or worn out piston rings. Here ...

Decades ago (OK, half a century or more), there was a product advertised in many of the performance magazines called the Varicam. The idea was a set of springs attached to a centrifugal device that ...

The jargon goes well beyond just names. Car specs are full of abbreviations that may or may not have any meaning at first glance. And sometimes we get so used to seeing those abbreviations that we may ...

Once upon a time, picking a cam for a given engine combo was all about compromise: improve top-end power at the expense of low-end torque, run well at wide-open throttle but sacrifice idle stability ...

Variable valve timing and variable valve lift may sound similar, but they're entirely different. Here are the differences between them and how they work.