hi I bought a mnr vortx today with a Yamaha r1 in (2003 engine, fuel injected) only drove it home down the m6 and 2 mile on a roads and it does not seem as quick as my old indy blade (ran a 3.62 diff) and my indy zx9r (3.9 I think) the mnr I bought today as a 3.38 is this why?

thanks jim

Probably.

I guess the ZX9R felt a bit frenetic due to the short ratio!

It's all about the diff
With a 3.4 (ish) you'll get more top end
A swap to 3.6 is not difficult

Yeh, it seemed a bit more aggressive. What's the 3.38 diff like then? It seemed better than others on the m6 today

Would mine b a 7-7.5" diff? Only ask as I will keep an eye out for a
Cheap 3.6

Cheers

A 3.38 is a 7" non lsd normally push in shafts , someone may have made it into a lsd , u will have to check. Easy enough to swap for a 3.62

You could sell the 3.38 and buy two 3.62's with the money.
Personally I would keep the 3.38 and splash out on a rolling road session to get the best out of the engine.

it still early days as I only bought it yesterday and it was raining so not really took it for a good blast out yet. the car does have a power commander the guy said it does need setting up, so might go get it tuned but for future reference can you get a 3.62 diff with push in shafts (I think that's no lsd and bolt ons are lsd is that right?)

cheers

I have a 3.62 crown wheel and pinion if intrested, infact i have the whole diff (non lsd) but its in pieces.

u2u me if interested.

matty

quote:

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Originally posted by jlayton
it still early days as I only bought it yesterday and it was raining so not really took it for a good blast out yet. the car does have a power commander the guy said it does need setting up, so might go get it tuned but for future reference can you get a 3.62 diff with push in shafts (I think that's no lsd and bolt ons are lsd is that right?)

cheers

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While on the Diff .... would a MX-5 diff be siutable for a hayabusa engine?