ok, just been wondering, does anyone know the drive percentage with the b5 quattro? is it 50%front, 50% rear? could it be more front or rear biased?

i dont have any of the traction control junk, so i know its not going to change. i was reading an article about the r8 that it never gives more than 30% power to the front wheels, giving it more sports car performance obviously, but the handling of awd.

 

que ive heard many things most of the mbeing 50/50 and 40/60 so idk what to believe.

 

"I know that more goes to the rear for sure and that it's not 50/50. Also that its probably closer to 30's % in the front and 60's% in the rear. It would too much of a problem to set it up so it is 50/50 and not enough gain from doing so. "-ME

Somebody who knows their Sh#t:


"The point to note is that quoted torque splits like 37/63 only apply when there is no slip. Given the extreme example above of one axle being jacked up off the ground, a AWD system with any type of limited slip devices can theoretically go from its nominal split of say 50/50 (or whatever it may be) to 0/100 or 100/0 depending on how solidly the center limited slip device or 4 wheel traction control system locks. Mercedes does not quote the percentage locking factor on its traction control system, so one cannot really tell what its true variations of torque splits are under extreme conditions. Part time manually engaging systems with no center differential as well as early full time systems such as the first generation quattros with manual locks can have the variation of going between 100/0 front/rear and 0/100. These extreme variations also mean that no speed differences will be allowed between axles, which is why most modern systems never achieve 100% transfer of power. A 80% locking ratio would allow the speed differences of turning wheels to occur without interference. "


Quoting this from the book:
Introduction to All Wheel Drive systems
By Eliot Lim

 

Now note that only the first part pertains to us and once it says first gen. then it doesn't

 

hmm...thanks for the help...i was curious mostly because of driving in snow, there was no problem kicking out the rear wiht the throttle, like my truck i use to have, but when the truck was in 4x4, there was even 50/50 all the time. i know 4x4 for not same as awd, but i was just noting the handling differences. i almost thought that being based on the a4 platform, it would be front wheel drive biased, but that would limit its sporty performance...

anyways, appreciate the curiosity help guys!

 

This comes from the stasis web site in the product description of their high bias center diff

"Tuning the center differential provides one of the most significant performance gains available to the Quattro owner. The standard torsen center differential in the S4 and A4 provides a 2:1 torque distribution capability. This enables the end of the car with traction (generally the rear) to deliver twice the torque being delivered by the least tractive end of the vehicle (generally the front). For high performance street cars, we recommend a bias ratio of 4:1. This is the same bias ratio that Audi has provided in the stock RS4 driveline."

 

Now with all aof that bein said HP will that help the S4 with small bolt ons done to the car? and if it does where can I get the RS4 driveline parts???

 

B5 S4 is 40/60.

 

says who its 40/60? Just want to know where you got it from that's all. HP,does stasislist any percents? I'm looking into mercedes more to tell me a better answer than I already found even though that explains everything already.

 

I wish I would remember to post everything I have to say in one post, crap. Any who, David, the gains depend on the wheel horse power to begin with the less whp you start with the less the car has to offer to the differential the more whp the more gains. only your torque numbers will go up this is no meansanything to deal with the engine AND the reason so is that less power and torque is lost going to a percentage of all four of the wheels AKA you know how fwd cars only lose 10-15% from engine to wheels and we normally lose 20-25% with the rs4 driveline it would be more like 15-20% afterwards somewhere in the middle.