2007 335i

[Mike325]

only M cars after 1995 got LSD's. nothing else!

What about e30 m3s? They had lsd, no?

And not after 95, in 95.

[mtechnik]

@ Mike325

All //M cars have LSD's to begin with.

E30 " iS" + "es" & E36 "iS" models as well . (with exeption of some 318iS cars.

[e30sd]

This is on our Stg 1 (exhaust and computer) car from earlier today, running 93oct. Dyno results from 2 weeks ago, under nearly identical conditions, were 375lb-ft and 345whp. The only things that changed since then have been our recent updated with our engine control computer (how it controls boost and adjusts ignition timing, specifically). Both setups ran the same boost- 12psi peak, tapering down to 11psi by 5000rpm and then down to 9psi by 7000rpm.

Tonight and tomorrow, I'm going to be testing at 4000' above sea level just to make sure there is enough overhead in the boost control system for it make the necessary adjustments.

Those beta folks who currently run our Stg 0 kit will see benefits from the new changes. And we will be offering free updates for those kind folks. This will require a hardware change to the Xede itself. That means that we will be swapping it out for another unit altogether. More on that later. Gotta get back to work

Cheers,
shiv

PS. To put this in perspective, by 3700rpm the car now is already making the peak power of a stock car (265-275whp). So basically, to drive keep up with a stock car, I'd have to short shift this car at 4000rpm

[MikeE30325i]

it should still be an option though. you can get LSD's on mustangs, SRT-4's, the camaro when they made it...all those people weren't "experienced" drivers. it would be nice to know the truth behind all our guessing.

my damn SE-R has as lsd. i think it is bullshit that they dont have them as options, at least. oh well

[/end rant]

[BrandC]

It handles like an M too!

To my knowledge, every M3 from the E30 on understeers from the factory...Guess it's a shitbucket like all new Euro cars.

[DaN]

Like i asked before, can you swap an e46 diff into an e90/e92?

I might be wrong, but it seems like the E46 LSD is electronically variable, so I'd think installing one would be a PITA what with wiring and stuff. But, like I said, I could be wrong.

I Highly doubt the e46 m3 diff will swap into the e92 or e90, they have a totally redesigned rear suspension and the mounting points for the diffs are different. I've replaced a couple e46 m3 diffs recently, and I work on e9xs everyday.
The m3 diff isn't electronically controlled.
It works on the shear pump concept, when there is a differential in wheel speed from side to side, it increases pressure to piston which locks up clutch discs in the unit.

The e9xs dont have lsd, because they use electronic control of the wheel brakes to transfer torque of the slipping wheel through the diff to the wheel with grip. If you hit the DTC button momentarily it will switch to DTC which allows some slip, and slightly better traction.

[mtechnik]

The understeering setting was also devised to save poeple's, who cant feel the car's limit coming on, asses.

[bmw_e30]

To my knowledge, every M3 from the E30 on understeers from the factory...Guess it's a shitbucket like all new Euro cars.

My E36 M3 oversteers.

Mmmm. Oversteer.

[GaryE30]

With proper skill, understeer can be eliminated.