Stan suggests:
>>>>Lotus front suspension trunnions . . snip . . Since they are
threaded (3/4-10) lh and rh
> they "wedge" or "dewedge" the car as the wheels are turned. For
those
> unfamiliar with the term, wedge is a common method to cure understeer
on
> circle track cars whereby they intentionally preload the LF or RR
corner of
> the car on these left turn only machines. Often this can increase
cornering
> g's by about 3-4 %. Wedging would show up on corner weight tests of
course.
> I have not looked at it yet but this could be favorable or
unfavorable in
> the Europa's case. If this slight wedging is in the unfavorable
direction,
> swapping uprights side to side would turn the tables. Hmm a variable
left or
> right wedge under the driver's steering wheel control. Clever devil,
that
> Chapman!<<<<<<<<<<<<<<<<
Hmmmmmmmm , with the 10 thread per inch pitch, there'd only be a tenth
of an inch per full hypothetical 360 degree revolution. At a rational
angle of 20 degrees, the "wedge" would be in the neighborhood of 6
thousandths per wheel or a combined 12 "thou" total. I doubt many of
us possess the sensitivity to detect this amount of "wedge" but, one
of Chapman's drivers *was* Jimmy Clark! :-)
Tony
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