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Old 04-08-2005, 12:46 PM   #1
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Hi Guys I am new on the board. I just had a quick question. I race on carpet with my touring car. My foam tires in the front always wear evenly but the back foam tires wear unevenly. The outer part of the foam tire always out more. I am running -1.5 camber all around and have even tried -2.0 in the rear. The reason for this question is because I read somewhere that all 4 wheels should wear evenly. Any input would be appreciated. Thanks
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Old 04-08-2005, 12:50 PM   #2
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na thas not true theres all ways gonna be a diference becouse the front wheels turn sude ways making them rub evenly.... the rear ones just go side to side... so they cant soak up the angle of the car it just rubs them off at an angle dont worry bout it....if ur serius bout raceing geta tire lathe
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Old 04-08-2005, 01:00 PM   #3
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Your rear links setup affects the camber change !
Just look at the rear camber at normal ride height, load up the rear and observe the cambar changes
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Old 04-08-2005, 01:49 PM   #4
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Ghost- I thought the rear links adjust the roll center. I dont understand your theory?
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Old 04-08-2005, 01:53 PM   #5
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I wouldnt be worried so much as even wear front to back as I would left to right. If the right rear is wearing more than your left rear, just remember to rotate the tires to try to keep it at a balance.
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Old 04-08-2005, 01:57 PM   #6
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Hrcracer,
The upper camber links are responsible for camber changes(hence the name) as well as roll center adjustments(longer, shorter, higher, lower). And as a rule of thumb your front tires should wear flat and rear tire wear in slightly coned(inside smaller than outside). Don't be afraid to dial in more camber, on carpet I ran 2* front and 3* rear camber all year. Overall set-up, track conditions, and driving style will dictate how much to run.
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Old 04-08-2005, 02:09 PM   #7
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Yep, Check your camber links, it does affect your moment of roll, not the actual roll center. This affects your camber gain as well. This is why you are heaving a wear issue.
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Old 04-12-2005, 10:58 AM   #8
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Thanks guys. It makes sense now...
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Old 04-12-2005, 01:02 PM   #9
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Shorter links and adding shims underneath the outer mount of the link will cause the negative camber to increase as the suspension is compressed. Changing the link length by using different mounting positions causes larger changes in camber gain. Shimming up the outside mount will give more subtle changes.
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