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Re: lots of audis
I'm no expert on the subject by any means but I'll explain the differences as best as I can. Newer Volvo's as I understand run on a Haldex based system. The Haldex is a reactive type set up where power is normally transmitted to one set of drive wheels for the most part, in Volvo's case and most others that is to the front wheels. When the wheels slip the Haldex system "reacts" and dispurses the torque out to the other wheels as it sees appropriate. Now for Audi's cars that have front longitudinal mounted engines use the Torsen based system which is a "proactive" set up where typically (at least in my b5 S4) torque is split 50/50 bias to the wheels of the car. (I hear that this number is constantly changing around as the Torsen diff sees fit.) So with power there all of the time when there is slippage the Torsen diff will send the power from the wheel(s) with loss of traction to the wheels with superior traction. Now there are many Audis that also use the Haldex system as well, namely their transversely mounted engined vehicles such as the TT and A3, but also I've heard the R8 and the Veyron use a Haldex based system just operating in reverse fashion due to their Mid Engine platforms, so I mean hey the system can't be all that bad now can it? I've heard many different arguements as to which is superior the Haldex or Torsen and I guess they just have different advantages and disadvantages between the two systems. I've heard the Haldex can be better on gas as it typ. just drives two wheels for the most part and in zero traction situations can be better because the wheels will still spin to get you out where with the Torsen system supposedly if no wheels have traction then the car has nowhere to distribute the power to so you remain stuck. Now I haven't got to test any of this out so I'm just saying this is just what I've heard so no guarantee on if it is bull$hit or not. I do know I've been in some seriously slippery conditions before in my A4 and S4 and have never had any traction issues.
Now also with the Torsen set up because the power is there all of the time when you step on it, it's gone no peel out unless you have some serious power and all four light up or dump the clutch at 4k, whereas supposedley the Haldex can spin the main drive wheels a bit before the power is transferred off to the other wheels, although this notabley happens very quickly I hear. I prefer having the power there all of the time with the Torsen set up but Haldex is pretty damn good as well from what I hear.
I'm no expert on the subject by any means but I'll explain the differences as best as I can. Newer Volvo's as I understand run on a Haldex based system. The Haldex is a reactive type set up where power is normally transmitted to one set of drive wheels for the most part, in Volvo's case and most others that is to the front wheels. When the wheels slip the Haldex system "reacts" and dispurses the torque out to the other wheels as it sees appropriate. Now for Audi's cars that have front longitudinal mounted engines use the Torsen based system which is a "proactive" set up where typically (at least in my b5 S4) torque is split 50/50 bias to the wheels of the car. (I hear that this number is constantly changing around as the Torsen diff sees fit.) So with power there all of the time when there is slippage the Torsen diff will send the power from the wheel(s) with loss of traction to the wheels with superior traction. Now there are many Audis that also use the Haldex system as well, namely their transversely mounted engined vehicles such as the TT and A3, but also I've heard the R8 and the Veyron use a Haldex based system just operating in reverse fashion due to their Mid Engine platforms, so I mean hey the system can't be all that bad now can it? I've heard many different arguements as to which is superior the Haldex or Torsen and I guess they just have different advantages and disadvantages between the two systems. I've heard the Haldex can be better on gas as it typ. just drives two wheels for the most part and in zero traction situations can be better because the wheels will still spin to get you out where with the Torsen system supposedly if no wheels have traction then the car has nowhere to distribute the power to so you remain stuck. Now I haven't got to test any of this out so I'm just saying this is just what I've heard so no guarantee on if it is bull$hit or not. I do know I've been in some seriously slippery conditions before in my A4 and S4 and have never had any traction issues.
Now also with the Torsen set up because the power is there all of the time when you step on it, it's gone no peel out unless you have some serious power and all four light up or dump the clutch at 4k, whereas supposedley the Haldex can spin the main drive wheels a bit before the power is transferred off to the other wheels, although this notabley happens very quickly I hear. I prefer having the power there all of the time with the Torsen set up but Haldex is pretty damn good as well from what I hear.
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