X-Nico

unusual facts about Variable valve timing


VVT

Variable valve timing, a mechanism to adjust the timing of a valve lift in an internal combustion engine


Mazda B engine

It features S-VT variable valve timing on the intake side, no more VICS, but there is Variable Tumble Control System (VTCS) in the BP-Z3.

Mazda Z engine

The block features split upper and lower block assembly for added strength and rigidity, special long intake manifold for added torque, S-VT continuous variable valve timing, and a stainless steel 4:1 exhaust header.

Mitsubishi Motors engines

3B2 — The 3B20, found in the 2003 Mitsubishi i, uses a 660 cc DOHC with the company's MIVEC variable valve timing and an intercooled turbocharger, and was designed with the aim of exceeding Japan's 2010 fuel economy requirements.


see also

General Motors High Value engine

These engines (aside from the LX9) are the first cam in block engines to implement Variable Valve Timing, and won the 2006 Breakthrough Award from Popular Mechanics for this innovation.

VTAC

A slang term for VTEC, a variable valve timing system used in Honda engines