Quote:
Originally Posted by Dimman
VVTL-i is the same as iVTEC.
I think it was a cost issue as only the 2ZZGE had the VVTL-i as far as I know. And it used some pretty fancy metallurgy in the block and head too, I believe.
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Sorry I should have specified the i-VTEC in my previous post.
I'll spare you the million words of technical talk I have and say that while they are similar they are also different. The K20A2/Z1/Z3 i-VTEC have cam-phase on
both intake and exhaust cam shafts, while VVTL-i only has it on the
intake cam shaft. Their cam-shift is also similar but very different in execution.
You're correct, Toyota incorporated something called MMC (Metal Matrix Composite) on the cylinder walls, for reducing friction and wear on the 2ZZ-GE.