R32gtr Crankshaft

[docang]

I've got a R34 gtt and may need to rebuild the engine later next yr with a short block and able to source a new stock 32gtr crankshaft for a good price.

The question is whether the R32 RB26 crankshaft is suitable for the neo RB25det engine with stock R34 gtt pistons and rods?

Thanks guys for any advice.

[Sydneykid]

I've got a R34 gtt and may need to rebuild the engine later next yr with a short block and able to source a new stock 32gtr crankshaft for a good price.

The question is whether the R32 RB26 crankshaft is suitable for the neo RB25det engine with stock R34 gtt pistons and rods?

Thanks guys for any advice.

Nope the stroke is 2 mm longer in the RB26 than the RB25, that's where the extra 70 cc's comes from.

RB25 and RB26 rods are the same length, so you would need to use RB26 pistons.

Make sure the RB26 crank is a alte model one with the wide (not narrow) flange oil pump drive.

Cheers

Gary

[docang]

Nope the stroke is 2 mm longer in the RB26 than the RB25, that's where the extra 70 cc's comes from.

RB25 and RB26 rods are the same length, so you would need to use RB26 pistons.

Make sure the RB26 crank is a alte model one with the wide (not narrow) flange oil pump drive.

Cheers

Gary

Tks Gary, well noted.

Cheers Mate!

Daniel

[T04GTR]

what is the differance in chamber volume with 26 vs 25?

[Adriano]

what is the differance in chamber volume with 26 vs 25?

25 non neo and 26 are basically the same(ie they vary about the same amount)