My burnout

[bimmerjoe]

check it out

http://www.youtube.com/watch?v=AMnMokCnV3U

[Bullet Ride]

should have done some drifts.
sweet burnout thou.

[daveyto]

pretty cool...does the car have a lsd diff?

[Dado 540]

How did ya do it?

[bimmerjoe]

Originally Posted by Dado 540

How did ya do it?

gas/ brake combo.

Originally Posted by daveyto

pretty cool...does the car have a lsd diff?

yep the car does have lsd. to bad i didnt have pix of the tires after. the wires sticking out were over 6 inches long

[Mystikal]

Originally Posted by bimmerjoe

yep the car does have lsd.

M5 diff?

[bimmerjoe]

Originally Posted by daveyto

I have some Kumho's I can let you use for another if you like....lol

255/40/r17??
if so then sure why not

Originally Posted by Mystikal

M5 diff?

to be honest jay i dont know. my car is the m-packedge one so i would believe so.

[chromius]

Originally Posted by bimmerjoe

to be honest jay i dont know. my car is the m-packedge one so i would believe so.

If you didn't put it in, and the previous owner didn't put it in, then you don't have one. The M5 is the only e39 that came with an LSD from the factory.

Either way, nice burnout.

[daveyto]

I have some Kumho's I can let you use for another if you like....lol

[daveyto]

Hi Mystikal,

I recently went to the dealer to try and find out what fluid I can put in my diff, ATF or gear oil and after I gave them my VIN, they told me that my car, a 2003 540i had a LSD from the factory.

Surely the dealer can't be wrong????????......lol

Please explain your information....though I have read that only the M5 e39 came with a LSD....please dont let me go back to Downtown BMW and tell them they are wrong!!!!

regards

[bimmerjoe]

Originally Posted by daveyto

Hi Mystikal,

I recently went to the dealer to try and find out what fluid I can put in my diff, ATF or gear oil and after I gave them my VIN, they told me that my car, a 2003 540i had a LSD from the factory.

Surely the dealer can't be wrong????????......lol

Please explain your information....though I have read that only the M5 e39 came with a LSD....please dont let me go back to Downtown BMW and tell them they are wrong!!!!

regards

you need to address that to chromius not mystical lol.

[chromius]

Originally Posted by daveyto

Hi Mystikal,

I recently went to the dealer to try and find out what fluid I can put in my diff, ATF or gear oil and after I gave them my VIN, they told me that my car, a 2003 540i had a LSD from the factory.

Surely the dealer can't be wrong????????......lol

Please explain your information....though I have read that only the M5 e39 came with a LSD....please dont let me go back to Downtown BMW and tell them they are wrong!!!!

regards

I assume that was directed towards me

Unfortunately you'll have to go down to 'downtown bmw' and tell them they're wrong.

Take a quick look on real oem, the only diff offered for the 6 speed 540i is the same one offered on every year of 540, an open diff 2.81:1 ratio
PN: 33 10 1 428 576

Automatics had as an option a shorter final drive.Still an open diff at a 3.15:1 ratio
PN: 33 10 1 428 572

M5's were a limited slip 3.15:1
PN: 33 10 2 229 566

Go and ask the dealership that told you that you have an LSD what the part number is, because I'd love to know, cuz I'll install it in my car

[bimmerjoe]

im curiouse at what an open diff is.
and what is my benefit if i get the m5 diff?

[chromius]

Originally Posted by bimmerjoe

im curiouse at what an open diff is.
and what is my benefit if i get the m5 diff?

That's a very lengthy subject, plenty of stuff around to read about it, but the short of it is that an open differential is essentially a torque splitting device, that always splits torque evenly to both wheels. always. So when both wheels have equal traction, torque is split 50/50 between both wheels. However, it's downfall is that if one wheel looses traction it takes almost zero torque to rotate that wheel, and as a result the wheel that has traction also gets zero torque and the car goes nowhere and the power from the engine is converted into rotational energy in the form of the wheel with no traction spinning like crazy at double it's normal rate.

An LSD on the other hand, in very basic terms puts a preset amount of drag on the output shaft of the diff, so as a result the torque is not equal to zero and power is sent to the wheel with traction as well. It's a little more complex than that when you get into the different types of LSD, but that's the jist of it.

The LSD allows for better use of the available traction, and also allows for better corner throttle control, where an open diff would lose traction on the inside wheel first, and as a result spin it without transferring power to the outside wheel when you get back on the power.

[bimmerjoe]

thank you for taking the time to explain that to me
much appreciated