E30 Zone

hi all would a 3.73 lsd be any use.i will be fitting m52 engine and box and have this diff fitted and running taller 215/40/17 tyres.thank for looking jim

still be very very short even with 17's

you need a 3.25 3.15 3.07 or 2.93

cheers kos

Just use an iS box instead and you will be fine

DanThe wrote:Just use an iS box instead and you will be fine

there is that option too, probably easier to source !

DanThe wrote:Just use an iS box instead and you will be fine

what flywheel/clutch/starter would i use? how strong are they looking at fitting a turbo?

dont fit a turbo on a M52, build an M50 turbo.

any ways the IS's boxes are strong. flywheel choice is up to you, even the m20 ones can be made to work for nice revvy NA engine

Yep, 3.73 with iS box and lightened or lightweight billet M20 flywheel and clutch would be awesome.

I used a Sport box and 3.64 in one I did recently and it was very nice but it was a convertible so 3.73 or 3.91 might be abit high.

Going doing a swap with an iS box and 40% 4.1LSD soon for somebody else though... should be amusing

With the few mods and things to bring it upto 240bhp or so I myself wouldn't really want a turbo.

M52 would be very difficult or impossible really to make a reliable turbo conversion anyway.
non vanos M50b30 build and a nice turbo would be the way to go if you really want boost