A31 Diff Ratio

[VRdrift]

I trying to work out the diff ratio on my cefiro and by the plate it says RC40, so i'm guessing its 4.0? just need to clarify, its ya fully optioned up car just with out the turbo,

it seems odd that in these nissans the less powered engines get a taller diff ratio WTF? my first one was 3.9-RB20E and this one 4.0( I think)- a torqueless piece o crap RB20DE and turbos get 4.3

Edited July 21, 2010 by VRdrift

[toffy]

rc 40 where? , the only way to tell the ratio of the diff is to check the numbers on the crown wheel .

[Dan_J]

most of the non turbos got vlsd's aswell

yes as above unbolt the backing and spin the big gear until u see a ratio stamped on it

[daisu]

Or if it is still mounted in the car, jack it up, spin the output shafts (wheels) 10 times and count how many time the tailshaft turns.

41 turns would be a 4.1, 39 turns would be a 3.9 etc etc

[RBceffy25]

I have a rather large list of nissan diff ratio's.

I'll post it up when i find it

[RBceffy25]

The DE diff ratio is the same as the DET model 4.363

I'll put the whole list up tomorrow.

Edited July 29, 2010 by RBceffy25

[VRdrift]

The DE diff ratio is the same as the DET model 4.363

I'll put the whole list up tomorrow.

sweet, soon? which one is your cefiro, ive seen a couple down the coast both white with kits,

[RBceffy25]

Mine has no kit, is pearl white with black bonnet and black roof top, though my front end is a pretty messed up now due to meeting a fence on 4 bald tyres and has just been taken off the road with a blown head... and we all know what that means.... time to forge! Lewis Engines here I come! YAY!

Anyhoo here is the list:

4.900 - C23 Serena SR20DE 4WD Auto

4.636 - C23 Serena SR20DE 4WD Manual, C23 CD20T 4WD

4.375 - R32 RB20DET 4WD, A31 Cerfiro RB20DET 4WD

4.363 - R34 RB25DE 4WD, R34 RB25DE Manual, R34 RB20E, R33 RB25DE 4WD, R33 RB25DET Auto, R33 RB25DE, R32 RB20DET, R32 RB20E,

C35 Laurel RB25DE 4WD Auto, C34 Laurel RB25DE 4WD Auto, C34 Laurel RB25DE Auto, C33 Laurel RB20DE Manual

A31 Cerfiro RB20DET, A31 Cerfiro RB20DE Manual, S13 CA18DET, S13 CA18DE, C23 Serena SR20DE 2WD, C23 Serena CD20T 2WD

4.111 - R34 RB25DET Auto, R33 RB25DET Manual, C35 Laurel RB25DET Auto, C35 Laurel RB20DE Auto, C34 Laurel RB25DET Auto, C34 Laurel RB2

0DE Auto,

S13 SR20DE (ABS),

4.083 - R34 RB25DE Auto, R33 RB20E, R32 RB20E (ABS), C33 Laurel RB20DE Auto, A31 Cerfiro RB20DE Auto,

S15 SR20DE, S14 SR20DET Manual, S14 SR20DE Manual, S13 SR20DET Manual, S13 SR20DE (ABS), S13 SR20DE

3.916 - S13 SR20DET Auto, S14 SR20DET Auto, S15 SR20DET Auto, A31 Cerfiro RB20E. 5 & 6 bolt

3.692 - S14 SR20DET ADM Manual, S15 SR20DET Manual. 5 & 6 bolt

3.583 - R33 RB25DE Auto, C33 Laurel RB20E Auto

* transmissions as stated, if not listed it means they are available in either Manual or Auto.

If anyone can add to this list, either if its ratio or cars that we can find the diffs in

[VRdrift]

FRICKEN SWEET! yer ive checked mine, 4.083, I was hoping 4.3 but I'll see how this one goes.

I think ive seen yours, a while ago, mine looks like aids aswell it has clapped out maroon paint, primer boot roof bonnet and bar, for now

eeeewww R34 RB20E

Edited August 28, 2010 by VRdrift