E30 M3 S62 Build - Loads of queries about 4x4 drivtrains

[The Dark Side of Will]

Hey guys, new to the forum.
I'm thinking about using the X5 sump and diff in a mid engine aplication. I would change the rotation of the t-case so the driveshaft spins the diff like it was going REALY fast in reverse. Can this damage the diff? The diff is just about the only part of a car I never needed to pull apart so I have no clue as to what would happen to a diff going backwords in 120mph.

How hard would it be to turn the gears around in a quife diff?

Are you going to be turning the engine around "Lambo style" so the pulleys are at the back and the transmission is in front?
The front diff probably isn't very strong. The 168mm diff is only good for ~250 HP in a RWD application.

I haven't done the Quaife reversal, but if you're going to turn it "backwards" you won't have to.

Interesting... Do you know if the 4.6 pan and sump bolts on to the M60 engine? Will I have to/is it possible to take the oilpump from the 4.6 and fit it to the m60?
I know a guy who is chopping one up and I think I'll get the parts dirt cheap.

The M62B46 from the E53 X5 4.6is and the M60B44 from E53 4.4i's, E39 540i's, etc. are very close to the same engine.

The N62 is quite a different machine.

[turbotarzan]

Hey guys, was surfing the 'net and somehow wound up on this thread. Felt compelled to register and post, as I'm tearing through the 4.6iS (again).

Don't know if I can help, or not... or whatever, but give me a shout if you need a measurement, a picture, or something. I'll do the best I can to accommodate.

Cheers. Good luck.

- J

Interesting... Do you know if the 4.6 pan and sump bolts on to the M60 engine? Will I have to/is it possible to take the oilpump from the 4.6 and fit it to the m60?
I know a guy who is chopping one up and I think I'll get the parts dirt cheap.

[turbotarzan]

The E53 front diff uses a "wide" carrier that shares dimensions with the 4 cylinder Z3 unit. The Quaife for the Z3 4 cylinder works in the X5 front diff. However, if you're going to do that, you'll need to disassemble the Quaife and turn the gears around, because in the front end application, the torque is in the opposite direction from the rear end application.

Hey guys, new to the forum.
I'm thinking about using the X5 sump and diff in a mid engine aplication. I would change the rotation of the t-case so the driveshaft spins the diff like it was going REALY fast in reverse. Can this damage the diff? The diff is just about the only part of a car I never needed to pull apart so I have no clue as to what would happen to a diff going backwords in 120mph.

How hard would it be to turn the gears around in a quife diff?

[The Dark Side of Will]

Fix to bumbsteer problem

http://www.peebeemotorsport.com/prod...s-BMW-E30.html

Cool... I wonder if those would work on an iX.

[Loupoz]

Fix to bumbsteer problem

http://www.peebeemotorsport.com/products/Tie-rods-BMW-E30.html

[The Dark Side of Will]

That would work, @$$uming the taper is correct. Of course if it isn't, a tapered reamer would fix that.

[DER E30]

Updates??? THis is a really cool project that needs to be out terrorizing quattro Audis and such.

On the note of bump steer, I wouldn't freak out about moving the rack a small amount. Fit the part where it fits.

Does somebody not make a bump steer adjustable rod end, something like what I'm running on my truck with C5 corvette suspension? I narrowed the front end of my truck 6 inches and just got a narrower rack (flaming river xl) and those adjusters in the pic... I pulled the spring off the coilover and went through the range of motion with a jack under the hub, and played with the shims until the toe didn't change any noticeable amount.

My truck drives fine and doesn't do anything super weird in the bumps. I built the frame completely from scratch and didn't do any CAD modeling or any of that ...

[Turk]

None at all Frank, Been swamped so this is on the back burner atm. Soon though, soon..

[Garageaholic]

Any updates on this build, Adem?

[Northern]

I was under the impression it was a turbo S14, but I don't know where I got that from.

[thatphysicsguy]

Yeah from further digging, it looks like they used the drivetrain similar to the escort xtrac, a competing rally car.

Have no clue what motor they used or anything else. It seems to exist almost as a footnote in the history of group b and rally cross.

[Northern]

Can't remember where I read this, but it used some sort of one-off british setup. No idea if they used any iX stuff as well

[thatphysicsguy]

Damn, this thread is nuts.

If you look you might be able to find some literature on this car:

http://jalopnik.com/is-this-700-horsepower-4wd-bmw-m3-the-craziest-e30-ever-511632667

Although from the broadcast, murray walker (I think) mentions that it uses an xtrac system, so it might be irrelevant.

In either case, great work: keep it up!

[Northern]

Hi guys, I have finally gotten back to this project. Been extremely busy :)

I am going to go 5 stud all round. What are the best 5 stud front hubs to use on the ix legs? Need to get them ordered.

Thanks
Adem

for iX 5-lug, check out what mw255 has done (listed in the OP)

http://www.e30tech.com/forum/showthread.php?t=78337

[The Dark Side of Will]

Most of my car time has been going toward my Fiero with Cadillac Northstar engine. It's mostly my daily driver and needed a few things.
I haven't made much progress on the AWD V8.

Also was laid off in March, so I haven't had spare money to collect parts, either.

I did get the 3.64 viscous rear diff back from the rebuilder a while back. I had to trim the viscous trigger wheel, as it wouldn't fit under the E36 rear cover and the E36 trigger wheel doesn't fit the viscous diff. I did get that done recently.