S-VT explained

S-VT, or Sequential Valve Timing,^[1] is an automobile variable valve timing technology developed by Mazda. S-VT varies the timing of the intake valves by using hydraulic pressure to rotate the camshaft. S-VT was introduced in 1998 on the ZL-VE engine and is used in the B-, Z-, MZR- and J-families of engines.

See also

• Variable valve timing

Notes and References

1. Web site: Carley . Larry . The SKYs the Limit: Looking into Mazda's SKYACTIV Engine Technology . enginebuildermag.com . Engine Builder Magazine . 16 July 2025 . 25 November 2013.