Variable Valve Timing Mechanism on Toyota

"VTEC has both. VVTL-i is Toyota's answer to VTEC."

and VTEC owns it.....

vtec ;)

I'm believing that the vvti should have an edge due to the ability to electronicly change its timing. but i dont know too much details because i dont know anyone who owns a Supra TT. so i cant get no feed back. so sorry on that one.

well i happen to own an LS/vtec hatch, and my friend Owns a Celica GT-S. both very amazing cars. both work almost the same. but i did my research wondering why the celica GT had less horse power than the GT-S, and vice versa for the RSX base and the RSX-S. just something i wanted to know.

OMG! this hmonger knows his hmongdas very good :O lol!

looks like you have more (already combusted) smoke in a fresh stoke cycle which seem to be less effiecient.

no

the first DOHC VTEC motors were introduced in 1990 in the NSX and the Civic/CRX, with the C30A and B16A motors respectively

wat do u think its betetr and faster 2jzgte vvti or non vvti

wat do u think its better and faster the 2jzgte vvti or non vvti

and then try explaining that to your friends. lol

vtec and vvti are different. vvti intake cam lift only. vtec depending on dual or single, it got complete lift. what is simular is
VVTL-i. Both have Dual cam lift. VVT-i is simular to that of a K20a3 from an base model RSX or an 03-05 civic Si, these have intake side lift only.

The first type of VVT was used in 1991 on the 4A-GE 20-Valve engine. Toyota produced VVT before Honda's VTEC.

VVT-I has no diffrentce in lift but when engine speed is above 6000rpm it opens the intake valve sooner to give more power quickly. Thats why the cam lobes turn.

no

VVT-i has adjustable cam duration, but no difference in lift.

VTEC has both. VVTL-i is Toyota's answer to VTEC.

its just showing overlap

my 2003 Camry came with the vvt-i engine. Toyota calls it VVT-i and Honda calls it VTEC, but they basically the same

doesnt the air fuel mix change to when it kicks into lift?

had a neibor who overfilled his 86 mazda rotory with to much oil and he litaraly blew the engine because of a "hyraulic effect".

It would seem like if your unlucky and there was still an explosion in the chamber when intake opened you would ignite all of your fuel in hte intake lines... lol.

It allows the engine to run well at both high and low RPMs.

I don't understand why this VVT-i technology is better than the standard... can someone explain pls?

rotary= mazda=crap. VVTI and VTEC= Toyota and Honda=reliability and fuel efficency

VVT-I is just a fancy acronym for valve overlap.

VVTL-i did come in 1999 and I-VTEC in 2002, you do the math.

and you have to do som reding to, since i-VTEC it's more like regular VVT-i that Toyota did relase in 96

that doesn't seems right, why would you let exhaust gases flow back into the intake valves