Spectra Premium Variable Valve Timing Solenoid
Spectra Premium’s new Variable Valve Timing Solenoids are built from the ground up using precise manufacturing and quality control processes backed with 100% end of line testing.

Variable Valve Timing Theory and Principles
There’s no doubt that engine specialists will begin seeing more variable valve timing (VVT) designed engines in their shops, as the generation of vehicles equipped with this technology begins to make its way into the service industry. In fact, the current versions of VVT were popularly introduced into domestic production about 10 years ago. Operating
