What about Roll Center?, where is it, how do you guys handle it? Options

[Chi-town]

I think I've ready about a dozen threads relating to bump steer.

I see the issue and it's easily remedied by the aftermarket parts available.

Rear bump steer or "passive rear steer" as Honda called it in the CRX doesn't really worry me.

What I'm noticing in all the images I see of lowered front suspensions is the angle of the lower control arm and the comments about lack of ride quality.

If you look at a pic of a stock height suspension, the arm sits at about a 20 degree angle downwards (estimated).

If you look at a lowered car the angle is usually less than 10 degrees or even parallel with the ground. (eek!)

I know we have a few racers / engineers here on the forum, has anyone calculated the roll center of the car stock / lowered?

Has anyone tried an extended lower ball joint? I've seen de-cambered but not extended.


I'm curious to see what you guys think.

[914forme]

(IMG:style_emoticons/default/agree.gif) With Dr. Tim,

If your going low you will also need to look at raising the rear suspension pickup points and upper shock mounts.

Again Tangerine Racing is your stop for these items also.

Changing the camber on the arms will work to a degree but really you need to move pickup points to make the most of the suspension.

My EG Conversion
Raised front spindles, adjustable for bump steer, camber boxes
Raised rear pickup points, Raised rear shock towers, and redone rear arm cambered for the tires I will be running. Chris knows this stuff.

Don't forget semi solid non binding bushings, none binding sway bars and all the other items that make for a proper suspension and setup.