Around 60mphand up my car pulls

[jamesmost]

just had an allignment all within specs (passenger front just within)car will inadvertantly pull left or right whenever it wants too.ANY IDEAS ? < thats my new favorite Icon

[99q45t_vl]

Can you post the numbers?

[jamesmost]

Can you post the numbers?

Caster LF 4.2 RF 4.4Camber LF -1.4 RF -1.8Toe LF .05 RF .05

Camber LR -1.3 RR -1.3Toe LR .10 RR .30

[Q45tech]

And the EXACT road camber is? Shape of the road across the various individual lanes?..................An 1/8" is enough to create a thrust angle.

Caster is critical as is camber every right/left parameter must be less than 0.2 degrees [variance] as loaded................tires must be inflated equally per axle fore/aft and tires must have the same sidewall stiffness [and radial force] at that inflation.

[jamesmost]

just checked and adjusted pressure was a bit off had 37 lbs both rear and LF 36 RF 38adjusted to 35lbs rear and 35.5 lbs frontAvon M550

245/45 WR17 95W 360 AA A road surface varied should itry less pressure??
Modified by jamesmost at 10:44 AM 3/6/2006

[96Qowner]

When my tension rod bushings were shot, side winds would push mine back and forth across the road. I see you have Stillen adjustables - maybe check 'em?

[qship96]

Caster LF 4.2 RF 4.4Camber LF -1.4 RF -1.8Toe LF .05 RF .05

Camber LR -1.3 RR -1.3Toe LR .10 RR .30

caster is way off!

[Q45tech]

What is thrust angle?

The front camber needs to be - 0.75 [+-0.2] [with you in driverseat] to avoid excessive inside tire wear and diminished braking performance.

The closer you get to perfect the more noticeable the least road imperfections will be.

[jamesmost]

What is thrust angle?

The front camber needs to be - 0.75 [+-0.2] [with you in driverseat] to avoid excessive inside tire wear and diminished braking performance.

The closer you get to perfect the more noticeable the least road imperfections will be.

thrust angle .2 deg.

[jamesmost]

just checked and adjusted pressure was a bit off had 37 lbs both rear and LF 36 RF 38adjusted to 35lbs rear and 35.5 lbs frontAvon M550

245/45 WR17 95W 360 AA A road surface varied should itry less pressure??

Modified by jamesmost at 10:44 AM 3/6/2006

UPDATE:Lowered pressure all around 35.5 front and 35 rear - equalizing and lowering pressure seems to have alieviated 90% of my problem.

[Jeff Williams]

I bet you wear the heck out of the front inside tires with that negative camber. Get it closer to -1, and this will help. I also had my toe-in adjusted to zero. This helped a lot with the tracking.

[jamesmost]

I bet you wear the heck out of the front inside tires with that negative camber. Get it closer to -1, and this will help. I also had my toe-in adjusted to zero. This helped a lot with the tracking.

Jeff have not gone thru a set of tires w/ the adjustable arms yet - befor the adj. were on my tires would be wasted on the inside w/ 1/3 tred left on the tire

[Q45tech]

http://www.aa1car.com/library/tires2.htm

Conicity: look at section where this is explained.

When a tire has inside camber wear the tire is thinner on the inside so pull to left...........one of the reasons you must demount and flip tires regularly [every 3-6k] to equalize edge wear.

[maxnix]

I also had my toe-in adjusted to zero. This helped a lot with the tracking.

I believed this once also, early in the days of radial tire technology. Actually, this is a mistake, because it does not allow for the thrust load of forward travel.

Thus, when set with too little toe at rest, dynamic toe under forward thrust will actually be positive. May seem to track better, but will wear the hell out of the inseide of the tire.

[jamesmost]

caster is way off!

Is Caster adjustable?? if not what is bent ?? or is that from lowering springs??

[Rex]

Is Caster adjustable?? if not what is bent ?? or is that from lowering springs??

Some reference to possible "bent" mounting points in this thread.

zerothread?id=163690