BoostedBrandon wrote:
p.s. Why do Toyota engine codes never correlate to anything?
You just don't know how to interpret them, that's all.
It's iteration, followed by block code, followed by a dash, followed by the "options".
Options that I know off the top of my head:
E - EFI
F - narrow angle DOHC (economy)
G - wide angle DOHC (performance)
T - Turbo
Z - Supercharged
C - Cali emissions
There's a code for Japanese emissions that I never remember and another one that used to be used for transverse mounting but was deprecated.
So, 22R-E is the 22nd iteration of the R block using electronic fuel injection, where the 18R-G is the 18th iteration of the R-block using a performance oriented DOHC head.
It's pretty much exactly the same as Nissan, except Nissan goes one further and instead of iteration uses the displacement in deciliters, uses "D" for DOHC, and uses a T for every turbo (i.e. RB26DETT is a RB block displacing 2.6L using a DOHC head with EFI and twin turbos, a VQ35DE is a VQ block displacing 3.5L with DOHC heads and EFI)