
Originally Posted by
allmotoronly
I hope you are not directing that to me. Look at the link, its straight from toyota. nobody else uses the 3 lobes system but honda. VVTL-i has a system that increases lift, but not by using three lobes. he has a GT, so he does not have VVTL-i. VVTL-i is more complicated and still not as efficient as VTEC, which uses three different lift heights on the three cam lobes. The lobes are known as primary, secondary, and VTEC. The difference in lift in the low lobes causes a swirling of the air as it enters the chamber. VVTL-i does nothing like that.
nissan makes one engine that has a system almost identical to honda's VTEC system that came about a few years later... imagine that. its the SR16-VVL blue top engine. The design was used under license from honda, so it does not count since nissan borrowed the design anyway.
All in all, honda has had this technology since the mid 80's. It has been in production cars since about 87 or 88 in japan. toyota and nissan did copy this idea until much later.