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Walt Fricke Walt Fricke is offline
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Join Date: May 2004
Location: Boulder, Colorado
Posts: 5,695
Jeremy - this may be a good point, but as I recall the results are consistent with what Burgermeister did? And his car wasn't seam welded (though neither was the wall of his garage).

Once this car is ready to drive, a day at a DE - or even an autocross - with the strain gauge bar in place and hooked up to a data recorder, should be even more informative.

Long ago - perhaps before the PC? - the makers of a strut brace (Automotion) instrumented a car with dial indicators with a telltale. Their conclusion was that the change in location of the shock towers was outward. Based on this, the brace they sold was just a bar taking up tension forces.

A competitor (Stable Energies), who made (and makes) a strut bar system which has a diagonal (and is carefully designed to fit rules which prohibit welding in or otherwise messing with the sheet metal to create attachments)disputed this, but did not offer data.

With the introduction of the Boxster tub, there is no need to do any of this, at least in the side to side direction, as the tub comes up pretty much to the top of the tower.
Old 01-24-2019, 10:48 AM
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