I just got some new rear tires and an alignment on my car done on Monday. The front tires are about 1/2 worn. I was using the Euro alignment but went back to the normal alignment this time as I got some better tires. Here is the problem. When I and accelerating or maintaining speed on the throttle the car is pushing Left. It is very noticeable. When I let off the throttle it jerks back to the Right and continues that way until back on the throttle. All of that is assuming you are keeping the steering wheel centered. I took it back yesterday and had on of the service managers drive it as well as the guy doing the alignment and they both noticed it. He tried to correct it by changing the Left Caster a bit. It is still doing it but it doesn't jump right as violently now when you let off. Also, it made the steering wheel a little off center to the right. I have posted the current alignment specs below. I have an all stock suspension. No changes to it at all. I'm needing help here, it's driving me crazy driving it like this. Any and all ideas welcome.


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It would be just awful if you went through all of this only to discover that your tire pressures are not all equal. Have you checked?

 

I knew I would forget something. That was the first thing that I checked when I got home. It was slightly different and I corrected it. No change in the pulling though.

 

What kind of tires are you using? If they are not directional, try swapping them side to side to see if the pull changes.

 

They are directional. Kuhmo 712 in The front, MX in the rear.

 

I'd want to swap to a different set of tires to eliminate them from the equation. See if the dealer has another S they can borrow tires from to verify the problem is not in the tires.

If it is the tires, you may have to replace the offending one to fix the pull. I'd swap rear tires 1st, since they are the ones you had replaced.

 

Well, unfotunatly this is a pretty small town and the Dealership has no S2000s in stock. Plus, this isn't at the dealership so they prob. wouldn't let me do that anyway. Do you really think that brand new tires would do this?

 

New things have defectts, too. You could swap the fronts and rears side-to-side with no problems for the purpose of testing. Do one end at a time. Just don't leave them that way, especially in the rain...

 

90% of the pulls I deal with can be isolated to the tire. Are there any local members you can swap tires with for a quick test drive?

 

I'll have to see what i can do to test the tire theory. I'll prob see what the shop can do the help me out. Thanks for the ideas guys.