VTEC VS i-VTEC?

[SiGNAL748]

Originally Posted by H22Insd

have u ever drivin a 94 lude vtec? 94 was the fastest year for the 4th gen prelude production. It was singled out over 92,93, and 95,96. Everyone says ill smoke him, well everyone thats been in my car

actually it was the 95...

and he would beat you, unless he messes up pretty bad.

[Prelewd]

Originally Posted by rubix777

I'm surprised that none of the other Japanese makes have chosen to use two sets of lobes on their cams.

So Honda got the VTEC lobes first, and Toyota got the VVTi first

I am not sure if Honda had it first, but many companies use variable valve timing. Just to name a few, porsche/VW, toyota/lexus, BMW, GM, ford..

The next wave of this will probably be something called smart valve:
http://www.aatap.com/

[whtteg]

I remember hearind something about BMW being the first to use a variable valve timing system. Not 100% sure that is true but I remember hearing it from a reputable source.

[crzyCollegeKid]

hmm...that smart valve sounds a lil fishy. theres never a solve-all-your-problems solution, and that claims to be one of them. sounds as fishy as turbonator. if you haven't read up on that, click here: http://turbonator.com/ and have a lil laugh

[Prelewd]

Originally Posted by whtteg

I remember hearind something about BMW being the first to use a variable valve timing system. Not 100% sure that is true but I remember hearing it from a reputable source.

GM and Toyota were the first to attempt it. BMW might have been the first to use it, but I believe it was right around the same time as Honda, if not after.

[SiGNAL748]

BMW (VANOS) was the first to use it. Honda (VTEC) was the first to "market" it.

[98visprelude]

I dont know if the older preludes are quicker than the newer because i have beaten the 4 gen. with vtec perty bad