Diff Ratio For R34 Gt / T

[Blue R34 GT]

Hey peeps

who knows the diff ratio for a manual R34 GT / T diff?

Cheers James

[GTSBoy]

4.11

[KiwiRS4T]

If it matters pre 00 were R200V 4.083 and later R200H 4.111

[GTSBoy]

I have a viscous 4.11 from a manual in the shed right now......

[Blue R34 GT]

I have a viscous 4.11 from a manual in the shed right now......

thats not shimmable ayy ?

[GTSBoy]

You can shim viscous diffs. Apparently it helps. I'm not entirely sure why, because viscous centres only really do any slip limiting by allowing slip to actually start - they work by the fluid inside resisting the relative motion between the sides. I wouldn't have thought they'd be adjustable by the amount of pre-load applied by shims.

[Blue R34 GT]

You can shim viscous diffs. Apparently it helps. I'm not entirely sure why, because viscous centres only really do any slip limiting by allowing slip to actually start - they work by the fluid inside resisting the relative motion between the sides. I wouldn't have thought they'd be adjustable by the amount of pre-load applied by shims.

the guy at my local diff place say viscous aint shimable...now im confused :S

[GTSBoy]

Yeah, me too. Because I haven't seen it done and don't see how it works, but lots of people say they've done it and that it does something useful.

[toffy]

viscous diffs are shimmable , the shims put more pre load onto the viscous coupling meaning the 2 plate things inside the cartridge are closer together if that makes sense?

Anyways , can anyone confirm 98-2000 manual diff ratio is 4.08?? , i'm guessing auto is 4.3?

[KiwiRS4T]

viscous diffs are shimmable , the shims put more pre load onto the viscous coupling meaning the 2 plate things inside the cartridge are closer together if that makes sense?

Anyways , can anyone confirm 98-2000 manual diff ratio is 4.08?? , i'm guessing auto is 4.3?

What car, what engine? All listed here:

http://www.nismo.co.jp/en/products/competition/lsd/pdf/lsd_price.pdf

[toffy]

Thanks kiwi (sorry everyone for the thread revive) , it's for a 99 r34 gtt manual , which by that chart is a 4.08