Anyone tried to appy Apexi SAFC or anything similar on their YARIIIII??

[paultyler_82]

Originally Posted by cdydjded

Also VVTi does do the same as VTEC. VTEC is done with a 3rd lobe, VVTi is done with a sliding pin. Go here http://en.wikipedia.org/wiki/VVT-i if you want an exact explination.

Actually that's VVTL-i, it does vary the lift, unlike VVT-i.

and actually, all engines that use some sort of variable cam timing system like Toyota's VVT-i or Nissan's CVVT, use such a system for the performance benefit, it's there to squeeze a few extra horses out of the engine at high RPMs or hard throttle. Although it may not be as noticable in the VVT-i engine as it is in one of Nissan's CVVT engines (they can advance and retard BOTH the intake and exhaust valve cams) or in Honda's VTEC (of course the added benefit of variable lift.) but it is there for the same reason, it is a much more noticable difference on a Dual VVT-i or a VVTL-i engine, of course.