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R33 Rb25 Differences With Neo R34

GreeceS13

By GreeceS13,
in Engines & Forced Induction

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Adriano Grand Master

Adriano

Posted
Posted (edited)
The following R33 parts...

Greddy intake fit to neo?Yes

Clutch for fits to neo?No, same as late 32/33 gtr

Forged pistons for r33 fits to neo?No

Exhaust manifold fits to neo?yes

Nissan OEM gasket kit fits to neo?should

That's all :P

Edited by Adriano
STATUS Grand Master

STATUS

Posted
Posted
Greddy intake manifold needs to be modified..not a perfect fit

bolts straight up perfectley with no mods, wiring and shite needs mods.

http://www.skylinesaustralia.com/forums/In...eddy+plenum+r34

http://www.skylinesaustralia.com/forums/Gr...=plenum+r34+gtt

GreeceS13 Rising Star

GreeceS13

Posted
  • Author
Posted

And another question...

I would like to put wisecos because they are cheap..

What compression I will have with stock headgasket with

R33 RB25 pistons?

RB26 pistons?

Here there are the spec of the pistons... I don't know how to calculate the ratio so anyone how knows please let me know!

http://www.wiseco.com/PDFs/Catalogs/SC08/N...aruToyotaVW.pdf

Adriano Grand Master

Adriano

Posted
Posted (edited)
And another question...

I would like to put wisecos because they are cheap..

What compression I will have with stock headgasket with

R33 RB25 pistons?

RB26 pistons?

Here there are the spec of the pistons... I don't know how to calculate the ratio so anyone how knows please let me know!

http://www.wiseco.com/PDFs/Catalogs/SC08/N...aruToyotaVW.pdf

Neither are appropriate, you will end up with >10:1 comp.

R34 neo throttle body is basically the same as r33 except it has the TCS butterfly on the front, no probs fitting a Q45 one to the greddy. IMO save the $1300 for the greddy/Q45 and do the motor properly, maybe with an rb30(then you can just use rb30ET forged pistons to give you high 8's:1 comp)

Edited by Adriano
GreeceS13 Rising Star

GreeceS13

Posted
  • Author
Posted (edited)

Anyone know what pistons I can put to NEO??

Wiseco don't have neo pistons?

EDIT

Adriano are you sure? In this post they say Abo Bob said that will be 8.75:1!

http://www.skylinesaustralia.com/forums/Rb...rged&st=20#

RB25 and RB26 aren't different high pistons? Who knows to calculate the compression? Always with stock gasket!

For both 25 and 26 pistons!

Edited by GreeceS13
Spoolup Mentor

Spoolup

Posted
Posted

NEO has a smaller combustion chmaber so R33 pistons will produce a high ( as in too high ) a comp ratio.

Exhaust manifold is the same stud pattern.

OEM gaskets - some will be different, like valve stem seals etc - but most should be same as R33

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