I dont see what the difference in handling would be as long as they are even on both sides... is there a difference?

 

Yes. Positive caster becomes negative camber on the outside wheel and positive camber on the inside wheel as a function of steer angle. That's generally a good thing.

Bumpsteer is also affected, which could be either a good thing or a bad thing.

You have to visualize 3-D geometry in motion.

Norm

 

also the more laid back the caster is the more straightline topspeed.. and the more forward the caster the quicker the turning..

 

Do you mean the more (+) caster setting equals better straight line stability?
Also the more (-) caster equals easier turning. Not necsasarily (sp) quicker turning.

 

more responsive would probably be a better term..

 

what would be a good castor setting for the daily car, I mean would I get any uneven tire wear either way? Im not on the highway or at high speeds often and like the feel of zippy steering response so would there be any negative effect of the negative camber for a daily driver?

 

For a fun "driver", I'd shoot for:

-.7 degrees camber (as high as -1 degree if you can get it)
4.5 castor
0 toe

For reference, I run:

-1.3 camber
4.5 castor
1/32nd inch of toe out

I get 30k out of a set of front tires and still have tread left on them. So, it does not chew up tires and the car handles great. The specs I gave you will be a huge improvement over stock and give even better tire life.

Hope that helps.

 

is that 4.5 pasitive castor and I didnt know you could adjust camber without adjustable lower A-arms....?

 

Even if you could crank the caster setting all the way to 4.5* negative (which I doubt if I am to assume that it's still driveable) I really don't think you'd like it very well.

Front wheel camber is always adjustable by some means.

Norm

 

well ill do a search for some alignment specs... it would help if anyone wanted to throw out some spcs they have used on thier daily driver as well...

 

Trackbird has already given you two sets of specs only four posts above this one, and I don't think it was because his fingers needed the exercise.

At this point I strongly recommend that you stay within the "fun driver" set (zero to -0.7* camber, zero to 1/16" toe-in, and around 4.5* caster).

I run -0.7* camber on my G-body for the street. The rest of my setup will not be of any use to you because of the different chassis and because there's a separate compromise involved.

Norm

 

Yes, it's positive (or I'd have marked it as "-4.5") for the castor setting.



I already did.

I've tried most of the various alignment settings on these cars and arrived at some things that work great for not only me, but everyone who's tried them. The "fun driver" specs I gave you are running on several cars at this point and everyone has been very happy with them. I'd give them a shot, but it's your call.

 

Not to be off topic, but how can caster be changed? I got my car aligned at sears (it was wayyyy off) and the guys there told me that my caster was a little bit off, but they couldn't change it. I think I heard that it wasnt adjustable with struts, but I'm not sure.... Any info ?

 

you should go to a performance shop, not Sears

i'm running same as Trackbird but
-1.5 camber
+4.5 castor (max)
1/16" toe-out

daily driver but seems to help in autox. i think i may go to 1/32 toe-out on my next alignment as it is a daily driver and i've noticed slightly more straightline resistance w/ the 1/16" toe-out.

 

My old setup was 4.5 deg castor and (-)1 deg camber and zero toe

new set up 5.5 deg caster and (-) 2 deg camber and zero toe.

New set up is onlya few days old.