Auto Diff

[180 wanabe]

Was wondering if there were any options to upgrade the stock open diff that comes in the Auto V35?

I have found that on take off @ a busy intersection the back left wheel will break traction easialy and then traction controll will kick in and everythig slows down. Was thinking that a LSD would help since power would go evenaly to both rear wheels. Have also noticed this when turning right and giving it a bit of stick mid turn

[BLISTC]

i dont know much about the auto transmission

but i do know that you can put a different final drive in the manual to get quicker acceleration and apparently this makes a world of difference in the v35 and 350z

[180 wanabe]

ok well 50+ views and only one responce... let me ask this, anyone know if the 350z auto has a LSD or is open ? and even better is it a straight swap if it is a LSD?

[whtbox]

yes the 350z do have an auto diff, and you can do straight swap. Also it's Super rare to find it and will cost you $$$$$.

[180 wanabe]

Taken from this site

Z33 - MT - R200 - 3.538

Z33 - MT - R200V - 3.538

Z33 - AT - R200V - 3.357

Z32TT - R230V - 3.692

Z32 - R200V - 4.083

G35 - Sedan - AT - R200 - 3.357

G35 - Sedan - MT - R200V - 3.538

G35 - Sedan - AWD - AT - R200 - 3.357

G35 - Coupe - MT - R200V - 3.538

G35 - Coupe - AT - R200 - 3.357

G35 - Coupe - AT - R200V - 3.357

Q45 - G50 - R200V - 3.538

Q45 - FY33 - R200V - 3.692

R32 GTR - RB26DETT - MT - F160 - 4.111 - (Front Final Gear)

R32 GTR - RB26DETT - MT - R200 (Mechanical LSD) - 4.111

S15 - MT - R200H - 3.692

S15 - AT - R200V - 3.916

S14 - KA24DE - 4.083

S14 - SR20DET - MT - R200V - 3.692

S14 - SR20DET - AT - R200V - 3.915

S13 - KA24DE - 4.083 - (Both R200 and R200V

So im guessing that a R200V is the stock viscous "spelling" hence the V LSD

so if thats the case then if I can find someone with a S14 MT whos pulling out their diff centre to fit a 1.5 or a 2 way mech centre then I should be able to swap my diff centre with theirs and have a LSD with a similar ratio to what the stock open V35 LSD is? It also looks like the 350z Z33 autos came with a LSD well according to the site this info is from and it also has the same 3.357 ratio

OK now for the NOOB question will a higher ratio eg 4 give better acceleration and less top speed than a lower ratio eg 3? im thinking that the higher the ratio the less top speed but faster accel

Edited July 15, 2009 by 180 wanabe

[whtbox]

hmm if you saying it direct fit, why not from the z32?

[180 wanabe]

well the ratio of the Z32 is 4.083 and id like to keep the rato as close to stock as possivle hence why the S14 MT ratio of 3.69 is closer to the stock ratio V35 auto ratio of 3.357. Also findind a S14 owner whos upgrading their diff centre will be a lot easier than a Z32 owner. After all when I had my S13 and I had a KAZZ 2 way put in my old diff centre went in the bin.... didnt think it was worth anything and im sure most S14 owners would think the same

[whtbox]

So is that mean that all those R200V LSD Can fit directly to the V35 without much modification?

Edited July 16, 2009 by pw350gt

[180 wanabe]

Well im no mechanic... but would love it if someone who knew about these things could come post and enlighten us

but one would think that a R200 is a R200 just like a SR20 is basicaly the same SR20 weather it be a S13 14 or 15... I know that there are differences in the plenum cams and other stuff but just using that as an example

[zei20l]

except that FWD SR20s are different engines to RWD SR20s

but afaik an R200 rear end contains all the same internals (except ratio and if its LSD equipped), i think only the rear casing is different as per the car that its installed into. i dont even think you need to get the ratio the same (assuming its an RWD V35) if you want longer gearing or shorter, the speed is taken from the ABS signal taken after the final drive....

[CeffyNSW]

Some comments

I put a new front coupling on my diff and the shaft is bigger than the R32/R33 ones, just makes me question compatability.

Z32 is an R230 so incompatable.

Would also be cautious with changing the ratio with the auto, need to check if this would impact anything with the auto output shaft comparison with ABS signal within the transmission computer.

Hope this is helpful.

[zei20l]

actually id like to change wat i said, the entire casing may be different lol just change the internals

the ABS signal only sends back the speed of the wheel no matter what ratios are before it. ABS doesnt know what gear youre in or your final drive ratio.

[180 wanabe]

Yeah i was thinking it would be easier to just change the internals like when I had a kazz centre put in my 180sx diff

I had a feeling that the speedo came off one of the wheels or something so changing gearbox/diff would not change speedo reading. As for the auto computer i never thought it would have any issues with the diff ratio being changed? after all wont it be looking more @ rpm and speed and throttle position?

[zei20l]

on newer cars like ours the speed is taken after the diff. older cars like S13/S14 had a gearbox sensor.

and yes the auto tranny shouldnt act any differently, youll either accelerate faster or slower depending on the ratio off the diff. that said, the gearbox might slip more with a taller final drive....

[180 wanabe]

So if speed is taken from the diff is that going to throw my speedo out if I put in a different ratio?

[CeffyNSW]

No there should be no change as the ABS sensors are on the wheel side of the diff.

[180 wanabe]

No there should be no change as the ABS sensors are on the wheel side of the diff.

Great! now all I need to know is if I can simply install a S14 MT diff centre in my V35 and all will be good with no more single spinning badness

[PaulReeves.com - GPOWER.TV]

Was wondering if there were any options to upgrade the stock open diff that comes in the Auto V35?

I have found that on take off @ a busy intersection the back left wheel will break traction easialy and then traction controll will kick in and everythig slows down. Was thinking that a LSD would help since power would go evenaly to both rear wheels. Have also noticed this when turning right and giving it a bit of stick mid turn

Would my CVT (GT-8) be open diff as well then???

I am assuming open diff means Non-slip Differential???

As I want to do a Diff Flush but stuck in finding out if to get AmsOil (75W90) Normal GL-5 LSD Diff oil or NS (non-slip) GL-5 Diff Oil???

[sonicii]

according to this -

http://translate.google.com/translate?depth=1&hl=en&ie=UTF8&nv=1&rurl=translate.google.com.au&sl=ja&tl=en&u=http://history.nissan.co.jp/SKYLINE/V35/0411/DATA/main1.html

The CVT and 6MT sedan came with VLSD as standard.

[PaulReeves.com - GPOWER.TV]

according to this -

http://translate.google.com/translate?depth=1&hl=en&ie=UTF8&nv=1&rurl=translate.google.com.au&sl=ja&tl=en&u=http://history.nissan.co.jp/SKYLINE/V35/0411/DATA/main1.html

The CVT and 6MT sedan came with VLSD as standard.

LSD it is for the GT-8 & 6MT...

Best Ever Spec Sheet!!!

Thank you so much Greg AAA+++

PS. Do you read/write Japanese?

To do the same and source out a workshop manual in English in any format as I can only find a Japanese CD Workshop after countless searches!