just to shut my friend up...... any1 know the diff. for B5 S4? is it 50/50 and can u show me a link to prove it? hes pissing me off badly, he talks soo much **** about his VR6 jetta haha

 

40/60

VR6's are awesome engines... but he should just shut up

 

I thought it was 50/50?

Isnt the new stuff like the B7 RS4 more like 40/60?

 

prety sure 40/60

 

i concurr, 40/60 under normal conditions. however the torsen diff standard in the a4 and s4 is a 2:1 bias unit. this means that whichever end of the vehicle has more grip, will recieve more torque. what i read on the stasis site to better explain it is a car with 300 ftlbs of torque on acceleration will send 200 ftlbs to the rear and 100 ftlbs to the front. ever notice how when you launch hard the back tires make more noise than the front?

 

Pretty sure B5 quattro is 50/50...

 

Here is your answer:

quattro generation IV
Where: Starting from 1998 on Audi A4/S4, Audi A6/S6, Audi A8/S8 with both manual and automatic transmissions. Also on VW Passat B5 4motion. Manually locking rear differential replaced by Electronic Differential Lock (Difflock imitation, detects wheelspin via ABS sensors and applies brakes to spinning wheels thus transferring torque via open differential to another wheel which has more traction). EDL works at speeds up to 40 km/h (25 mph), on more powerful versions such as S4/S6/S8 - up to 80 km/h (50 mph). In addition to EDL, Audi A8/S8 limits engine rpm when excessive wheelspin occurs.

What: Permanent all wheel drive.

Torsen center differential, 50/50 split, automatically locking with up to 80% of torque transfer to either axle.

Open rear differential, Electronic Differential Lock.

Open front differential, Electronic Differential Lock.

How: This is a superb all wheel drive system for on-road car. In on-road conditions the car will not move if all four wheels lose traction. Torsen effect with one wheel in the air will not happen on Quattro IV because Electronic Differential Lock will apply brakes to spinning wheel and Torsen differential will transfer torque to rear axle.

In off-road conditions (wheels in the air and an obstacle restricting the vehicle from moving forward) the car will not move further when one front and one rear wheels lose traction. The reason of this behavior is that Electronic Differential Lock is not a replacement for mechanical differential lock and it is not able to transfer enough torque to another wheel. The car will end up spinning one front and one rear wheel with crackling EDL trying to stop them from spinning.

Pros: Superb all weather full-time all wheel drive, no driver intervention.

Cons: no major flaws.

here is the link to the site: http://en.wikipedia.org/wiki/Quattro..._generation_IV

 

Thanks very much eveyrone.

 

You know whats funny after reading everyones posts, we all pretty much have the Quattros and dont know what the split is?
I thought we all would have known (me included)[sm=chairshot.gif]

If someone of a BMW forum was watching this thread he'd be laughing his head off

 

then he would cry because he isn't an Audi owner...