Z31 200zr

[jager]

have a toy to fix up and just wanna know some details

have a z31 200zr have replaced the rb20det red top to r32 engine black top rb20det

gearbox choices

what fits in, can a r32 gearbox bolt up, are there any probs or is it only r31 and z31 manual i have a choice of?

diffs

being irs, the diff looking pretty much interchangable with anything from silvias to 32 33 ceffy ect basic nissan diffs. amyome know which ones are pretty much bolt in

rear drive shafts

any idea which other cars are the same

[datsqik]

I think you'll find the diff is the r200 long nose like the z31 300zx or jap r31's or some s12's and some r30's not the short nose silvia/skyline style diff. I have seen some of these 200z's with 4.4:1 lsd's which is the same as the jap r31. Pretty sure the s12 has the 3.9 lsd and the oz 300z seems to have a 3.54 open. Most of the cv shafts are interchangable thru these models except the 3.54 version need the input stubs swaped to the other side to use in a 4.4 diff. All of these lsd's are pretty weak as they have only one inner lug friction per side taking all the load. If you take the shims from either side and add 2 more inner lug friction disks to each side then they become 3 times stronger and also lock up much harder. This is basically what nismo use.

[frigjam]

All 200ZR's have the R200 long nose LSD, as far as I know, and mine is a 4.3:1 which is what the HR31 skyline rb20det is also.

Gearboxes all look the same but vary slightly, series 1 have single syncros, same as VL and local R31. Series 2 (californian shape) have double syncros, basically same as an R32. Visually the R32 / 200ZR boxes look the same, same diminsions etc so there is no problems fitting an R32 box in. An upgrade would be an R33 box, would require a slight shortening of the tail shaft.

[msnismo]

If you need a long nose R200... I have 3 btw.... two way Nismo shimmed GTR Diff, std and a highway master single spinner....

Stick to the gearbox thats there for simplicity... or a 32....

[jager]

Thanks guys gives me a great place to start on

have the california 200ZR main bearing went so i have a rb20det from r32 runing from 200zr computer and old 200zr coilpacks with the igniter box sitting on top just like a redtop rb20det

gearbox believe its just the thrust bearing that is shot so going to replace that and a new clutch see how i got still orginal gearbox from 200zr

rear diff the diff is caked in oil on the right side drive shaft haven't check the diff oil level yet as its on stands believe i need a new seal there and prob a new wheel bearing as well

hopefully this coming weekend get the intake and exhaust back on found 3 gaskets including exhuast manifold that have huge holes in em

im having fun putting this car back to a good standard as the joker before didn't have a clue

cheers blokes any more info would be great

[frigjam]

sounds exactly like my situation when I got my late model 200zr! its also running an r32 eninge with the 200zr ecu/loom... my tip if u want more from the stock ecu (rather than changing to the r32 loom of full aftermarket) is try www.nistune.com and you'll have a fully tunable ecu, the stock ecu settings are rubbish.

[jager]

frigjam

are you using type 1 or type 2 nistune board

do they both plug up??

[frigjam]

frigjam

are you using type 1 or type 2 nistune board

do they both plug up??

Type 1 board, its the stock 200ZR / HR31 Skyline ECU (same ECU for both models). Type 2 boards are generally R32 type ECU's and completely different, no type 2 board will direct plug in.

As a matter of fact, we have just finished about the 5th revision board for the Redtop NICS engine, and I have been the guinea pig. All is well now and just made 170rwkw on the rollers, stock as a rock except R33 turbo and big fuel pump.

MASSIVE difference, the stock ECU has over boost protection, goes into a semi 'limp mode' when the AFM hits its max voltage reading, sending injector cut and all sorts of bizarre shit, you will never have any success with the stock ECU if you are modding the car, trust me!

[SideWaysChef]

I think you'll find the diff is the r200 long nose like the z31 300zx or jap r31's or some s12's and some r30's not the short nose silvia/skyline style diff. I have seen some of these 200z's with 4.4:1 lsd's which is the same as the jap r31. Pretty sure the s12 has the 3.9 lsd and the oz 300z seems to have a 3.54 open. Most of the cv shafts are interchangable thru these models except the 3.54 version need the input stubs swaped to the other side to use in a 4.4 diff. All of these lsd's are pretty weak as they have only one inner lug friction per side taking all the load. If you take the shims from either side and add 2 more inner lug friction disks to each side then they become 3 times stronger and also lock up much harder. This is basically what nismo use.

Any chance you might have some more details on shimming up the long nose R200

looking at doing it at the moment but dont have part numbers to order stuff of Nissan and havent found anyone else on here with any info on doing it.