Toyota has announced that it's developed a new variable valve lift;system,. Dubbed Valvematic,;it combines the automaker's existing VVT-i variable valve timing setup;with a mechanism that constantly ...

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 ...

TOKYO -- Toyota Motor Corp. has developed a variable valve-lift mechanism that the automaker says substantially boosts fuel efficiency and performance. The “Valvematic” mechanism is based on Toyota’s ...

Manufacturers like to use a lot of acronyms on their cars. Variable valve lift (VVL) and variable valve timing (VVT) are two of the most popular ones. These systems sound pretty similar, but what do ...

Toyota has developed a new engine control system that controls the lift of the engine intake valves. Toyota has developed a new engine control system, called Valvematic, by combining its variable ...

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 ...