MA617M
Well-Known Member
Ahhh, yes, Yamaha was who I was thinking of.As far as what was said, it was all in house for the 2JZ. The TRD engineer that I spoke with about much of this said Yamaha actually designed full engines for Toyota versus just cylinder heads like many think. I was also under the impression they only did heads, specifically due to that being true of certain motors like the Lexus F stuff, but the LFA V10, 1JZ, and some others were top to bottom treatment by them, which is awesome.
But yeah, he said they already knew they wanted a 3L variant of the JZ when the 1J debuted, but they didn't want to have Yamaha redesign it again so they bumped displacement and played with the head a bit and called it even. Hence the lack of Yamaha badge anywhere on the motor in contrast to the 1JZ.
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