you guys are probably fed up of answering this question but.....i am struggling to get an exact answer on what diff ratio i need to go for in a dax rush with a zx12r engine fitted,any advice appreciated

drop Hellfire a line, he's just built a ZX12 indy.

use U2U

Just seen this post... a 3.14 would be beneficial. You can light the rears up very easily upto 80mph in 3rd ( Oh yes!) with a 3.62 First is FRIGHTENING quick... without full throttle! Not that is important but relevant is - you would get more mpg. Our's does about 24mpg at best - on a track who knows... As the lower one's are like "rocking horse manure", I'd get the lowest ratio one you can lay your hands on at a good price. Unless you have squillions of pounds, in which case a Quaife will do quite nicely!

thanks hellfire,did you dry sump your engine ?

No we haven't although most commentators recommend it. We have a shortened and modified sump with integral baffles, valves and piping. It was taken from an engine which had been used for track so we are not concerned about starvation as it is proven. Beware though, the sump vary slightly from year to year.

If you need more information the kit was originally from Z Cars

HTH

[Edited on 13-8-05 by Hellfire]

so err where do i buy a baffled sump ?

quote:

---

Originally posted by perkles
so err where do i buy a baffled sump ?

---

I looked there but couldnt find 1 on the website