Difference between R33RB26 and R32 RB26

[Mik]

I need to know ASAP the difference between a late model R32GTR RB26 (around 1992-1993) and an R33 GTR RB26.

I know that the crankshaft in the R33 engine is different. Are there any other differences? Are the heads, cams etc the same?

I know the R33 made more power and torque, but is that just due to different ECU Maps or different boost, or is the eninge hardware different?

Also, can anyone tell me what the lowest engine number for an R33 RB26DETT would be? IE. would number 046xxx be from an R32 r an R33.

Thanks in advance

[N I B]

Later R32s had the better oil pump drive on the crank also.Found no real differance on the dyno between 32s and 33s but 33 turbos live longer at high boost than the 32 ones.