michaelkrelina

Would anyone comment on camber / caster limitations of this combination? My current camber is -2.2 and caster is aggressive. This results in the wheel rubbing in the front of the wheel well. I can move the lower control arm rearwards using the Pfadt camber kit thereby creating more space in the front. This will be at the expense of some caster, probably a worthwhile trade off for autocross. To make the above combination fit, almost to full lock, what kind of alignment sacrifices are required?

C5ZEE06

you can ?

michaelkrelina

The front plates can move the front part of the front control arm outwards. That will move the spindle rearwards and the front wheel away from the front part of the wheel well.

mountainbiker2

If you're saying that at full lock or near full lock it rubs, I wouldn't worry about it. Leave it alone.

Steve A.

michaelkrelina

Unfortunately, it rubs at less than full lock in front of the wheel well, probably due to a high caster setting, achieved by moving the front lower control arm pivot using Pfadt camber plates. I think I will be able to fix the problem but at the expense of a lower caster setting.
Mike

bobmoore2

Please define aggressive caster. Is that a higher than stock number, or lower? What are the caster numbers (left and right) currently? After you move the front lower control arm pivots (which direction?) will the caster numbers be larger (more caster) or lower (less caster)?

By the way, a great book on this subject is How To Make You Car Handle, by Fred Puhn. Only $15.45 on amazon.com. I highly recommend it if you're autocrossing.

froggy47

I would go a little smaller on the tire & retain all your adjustability, rather than go as big as that & compromise your adjustibality.

michaelkrelina

That is my dilemma, if I go bigger, I will have to give up some of my caster, maybe some camber as well. I cannot keep both, an aggressive alignment and a large tire size (Hoosier 315-30/18). I have not tried both to be able to anticipate which is a better way to go.
M

froggy47

Look on Tire Rack at the dimensions of a 295 tire, I don't think it gives up very much to the 315. I would not want to be lapping & wondering if I am going to bottom out my tire & lose grip.

Kubs

with froggy. You really are not getting ANY benefits by stuffing a 315 on a 10.5" wheel. The shoulders become rounded and the contact patch becomes smaller. A 295 would create a better contact patch on that wheel, and give you more room to turn the wheel.

Jason

spacer and longer studs will help

michaelkrelina

I understand that a 18x12" ccw will work with a 1/2 spacer and longer studs; that should provide a bigger patch but also a significantly wider tire. Is there any experience with that?
This will be for autocross only, not the track.