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Old 01-22-2018, 10:53 AM
Cobra #3170 Cobra #3170 is offline
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Default Toe change

Quote:
Originally Posted by Dominik View Post
I am curious about your toe change in bump and droop at the rear axle. And your intial setting (at 5 inch ground clearance?).

We had a street 427 in the shop (and a Kirkham with tubular a-arms) and it was a constant "chasing our own tail" experience.

With 750 lbin in the rear your toe won't change much, I guess ..
Rear ride height is 3.5 to 3.75" front is 2.9" we get quite a lot of suspension movement, rear toe varies on courses. We run 0 rear toe on tight autoxs, faster stuff gets .060 to .125 total toe in. The car has virtually no bump steer through 4" of travel 2" up and 2" down. I clamp a laser to a spacer that mounts to the rear brake disk and aim it at a target board about 20 feet away to exaggerate toe change measurement.
I get some track change but toe change is so small it is insignificant.
I have spent an enormous amount of time getting this right because it makes the car very stable. I have NMB aero space grade rod ends on all suspension links including the one that used to have a spherical bearing and no rubber mounts.

PLEASE NOTE: I DO NOT RECOMMEND ZERO REAR TOE FOR ANYTHING BUT A TIGHT AUTOX COURSE AND NEVER FOR THE STREET OR TRACK!

My steering is power assisted with 1 turn lock to lock and Scott has the fastest hands in the west, so that is how we get away with it.
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