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Re: Anyone ever take off rear sway bar? >> (archive)

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Posted by Gustave on June 08, 2001 at 15:19:55:

In Reply to: Anyone ever take off rear sway bar? >> posted by Useless Message Poster on June 08, 2001 at 14:07:51:

My quaiffe is have traction problems in slower off camber turns (road course). If I take out the rear bar my back end should drop faster and farther. Anyone ever try this??
E36M3 Race Car.

You have hit upon the fundamental dissadvantage of the Quaife limited slip differential. Namely that they don't work when one of the wheels is unweighted. That is probably why they are not used in any of the high end racing series to my knowledge (F1, Le Mans, WRC, Super Touring etc.)

You have hit on a good point with the rear sway bar. Certainly a softer rear bar will always be better for traction out of slow corners. This is why Gordon Murray, the previous McLaren Formula 1 designer and developer of the McLaren F1 and numerous Super Touring chassis' for BMW, did not spec any rear sway bar at all for any of his designs. Note many of the drivers did request that one be installed after they started testing teh cars.

In any case, you might help your problem by going to a softer rear bar. This will increase understeer in other situations, so you might want to increase the rear spring rates to compensate.

My 2 cents,


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