Question 911 front strut steering knuckle, bump steer Options

[Krieger]

I know there are shops out there that raise the spindle on bilstein struts then heat and bend the steering knuckle down to help with bump steer. I plan on lowering the front suspension about 1.5" by using the adjuster. I have boge struts and want to know if anyone has done just the heating and bending of the steering knuckle, does it work to counteract bump steer, is it hard to do acurately?

[Krieger]

Thank you Andy! very nice illustrations. Nice fat rack spacers are the true cheap, but problematic solution if you consider the rack will hit the sheet metal above.

Also... what if I didn't want to lower it that much; would that be wrong? A parallel a-arm is not making sense.

A arms parallel to the ground maximizes the distance between the two front wheels-widening the track. (each wheel swings in an arc -right?)
Those illustrations are static and when the wheel goes up the angle at the rack changes. The important take away I'm getting is the relationship between the tie rod v the a arm.

[ChrisFoley]

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A arms parallel to the ground maximizes the distance between the two front wheels-widening the track.
...

More acurately, positioning the a-arm so the center of the ball joint is at the same height as the center of the torsion bar will maximize the track width.
There will be bump steer at some part of the range of travel, regardless of whether the arms are parallel to the a-arms or not. If you want bump steer to truly not be a factor it is essential to actually measure it on your setup, instead of making assumptions about what happens. There are dissimilarities between the arc of motion of the a-arm and the tie rod even when they are set parallel at rest.
On my race car, I use a combination of rack spacers and bent steering arms to minimize the effects of bump steer.