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 ...

This engine defied expectations and redefined truck reliability. Uncover the bold engineering choices and real-world testing ...

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, ...

Since the beginning of hot rodding, gearheads have endeavored to increase the performance of internal combustion engines through the optimization of valve timing. It's been proven time after time that ...

With the 2010 Tundra Toyota Trucks introduce a new small V8 engine plus a new six-speed transmission in place of the previous five-speed unit. The new 4.6-liter V8 engine of the 2010 Toyota Tundra ...

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 ...