NitroDann wrote:The diff does not replace an ARB, and the ARBs job isnt to transfer weight to the outside tyre.
Dann
OK maybe I did not communicate effectivley, I was not saying that the diff replaces the rear sway bar. A torsen diff senses which wheel has the better grip, and automatically biases the power to that wheel without ever completely removing power from the other wheel. Power is transferred automatically without the use of friction pads or plates. Sway bars are designed to keep the car 'flat' and keep grip (see info from Whiteline below) in a manner different to a torsen. The torsen will not keep the car 'flat' but will keep grip by biasing the wheel that has the most grip. However should a wheel be lifted off the ground a torsen will not help as it needs some resistance to bias power.
I'm not saying that one replaces the other and I'm sure that people with torsen diffs also run rear sways. Same as I'm sure that I may not be correct in this post as well as my last.
I'm happy to be wrong, it is a way I learn and you can't be told you are wrong if you say nothing.
from http://www.whiteline.com.au/vehicle_swaybars.php
Swaybars, Stabiliser Bars, Anti-Roll Bars
As the name suggests their objective is to reduce sway, or body roll, and stabilise a vehicle under lateral (cornering) forces. Formula 1 cars still use sway bars along side the shocks and springs as it is the ONLY suspension component principally designed to control body roll. Unfortunately, many aftermarket spring manufacturers still design their lowered springs too hard, trying to control body roll when it's the sway bars job.
The fitting of bigger Whiteline Sway bars is still the best dollar for dollar handling improvement you can make.
Why? First, while car manufacturers appreciate the role the sway bar plays in vehicle control, safety and comfort, their standard bars, like the vehicles they are fitted to, are built to a compromise of price, performance and comfort. Secondly, handling and suspension design is an evolutionary process with constant changes.
Whiteline Sway bars dramatically improve the grip, handling and performance of your vehicle. Cornering loads are spread more evenly across the tyres delivering more grip and frankly, that's what it's all about. You also get improved tyre wear as your tyres stay flatter and more upright. Comfort improves because your car sits flatter through bends meaning less movement inside the vehicle.