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New tire issue

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Old Aug 25, 2005 | 03:18 PM
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norcal911's Avatar
norcal911
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Default New tire issue
Yesterday, I changed my rears to 265.40.17 SO3s on Cup wheels, and i was previously running the 255s. Fronts are 205.45.17. It looks meatier in the back but, now the car is behaving differently. I have PSS9s set at 2 all around. Lane changes used to be crisp, but now I am noticing the car has more body role and more oversteer at speeds above 50mph. Could this be a symptom of running 265s? Any suggestions are greatly appreciated.

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Old Aug 25, 2005 | 09:27 PM
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You are _very_ confused, I'm afraid. Let's try to figure it out:

1. What are the tires on the front?
2. What is the pressure in all 4 tires?
3. Describe "oversteer".
4. Why did you chose 265s on the rear?
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Old Aug 25, 2005 | 11:21 PM
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David in LA's Avatar
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And you've heat cycled these and burned off the mold release, right?
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Old Aug 25, 2005 | 11:29 PM
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Also, are the front and rear tires the same brand/model? How worn are the fronts or did you change all 4 tires?
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