The reasons to test can be varied, depending upon the objective, be it an involved development program or a one-off test of a completed engine. The underlying objective is to get the most from an ...

The magic of computers now lets anyone with a home computer build and test virtual engines in minutes.

If this belt fails, then engine internal timing will go out of sync. An out of sync state on your vehicle will spell disaster ...

You have likely heard of variable valve timing by one of the names manufacturers have for the system, such as VVT-i or VTEC. So what is it and what does it do?