Bullet proof rear?!?

[WheelE30]

hey guys i have a ls1 swap coming to almost turning it over and i am worried about the rear it is a 84 318i so the small diff.but is there a rear set up that is out there that is bullet proof to like high high hp and tq i am planning on it having around 750 rwhp and quarter mile tracking it so let me know its ok if its a custom install just wanted to know what some track guys running low numbers are going with. thanks

[E30-323ti]

4-LINK

if drag is your bag baby.

Others are running Medium case diffs on the M-coupe rear end (bigger axles & CV's) with some success.

I myself have a E28 rear end in my E30, and has been bomb proof thus far, but I don't go out in drag, as it's a circuit car.

[WheelE30]

Thanks so is there a company or anyone that can rebuild a 373 LSD to make it handle the power and launch on slicks? If not I think I'll do a e36 reAr cover for better cooling and Biggers axles and cv's and some major reinforcements so I can hopefully see a 8 sec pass withought loosing my life

[Mike325]

Try these guys out.

http://www.diffsonline.com/

[Streichholzschächtelchen]

I've got a euro big diff out of an m535i, 3.46 slip, if you are interested pm me.

[Gnarles]

you want bulletproof? do this....

http://www.r3vlimited.com/board/showthread.php?t=119358&highlight=corvette+irs

[Wanganstyle]

I set up a couple medium case 188mm Diffs for a local drag car, car has done this year on diff number one; around 20+ 1/4 mile passes in the 9's.

diff # 1 is still holding. Number 2 is spare for events and has not been ran yet.

Car was considering going to the ces 210mm subframe and big case setup but is on hold for now, these units are more stout than people make them out to be.

This is in a 4 digits to the ground street weight e36m, running dss driveline and rogue rear cover.

you will probably need to convert to a dual eared diff (and an aftermarket mounting plate past 500rwhp).

Obviously a random sloppy 1xx,xxx mile unit will be a different story under high power high load.

[makard]

8.8" IRS from Ford Mustang Cobra is pretty nice. Inexpensive. Lighter than stock BMW e36 Medium case diffs. All sorts of readily available inexpensive upgrade options. Custom axles required, but not overly expensive (made from stock BMW axles mated with stock Mustang axles) and custom drive shaft setup (also relatively inexpensive). Will handle significant power.

[e30s50dan]

Bullet proof rear?!?


My wife's ass!!

[BMWerke]

hey guys i have a ls1 swap coming to almost turning it over and i am worried about the rear it is a 84 318i so the small diff.but is there a rear set up that is out there that is bullet proof to like high high hp and tq i am planning on it having around 750 rwhp and quarter mile tracking it so let me know its ok if its a custom install just wanted to know what some track guys running low numbers are going with. thanks

tom?

[Matt Arruda]

I have about 60 passes on my MZ3 set up the car makes 600+. I can tell you from experience that your current setup will break right away. My current setup is forsale if your interested Email me Marruda83@yahoo.com

http://youtu.be/dfHRID7g6AY

[325ix]

8.8" IRS from Ford Mustang Cobra is pretty nice. Inexpensive. Lighter than stock BMW e36 Medium case diffs. All sorts of readily available inexpensive upgrade options. Custom axles required, but not overly expensive (made from stock BMW axles mated with stock Mustang axles) and custom drive shaft setup (also relatively inexpensive). Will handle significant power.

This sounds interesting. Are you talking about just swapping the diff or going with the whole rear subframe?