Subject: Time:11:50 AM
OFFICE MEMO TR-250 semi-trailing arm Date:6/3/92
I recently rebuilt my TR250's suspension, front and rear. This included
new shocks, bushings, and springs. In the rear I also replaced all
U-joints, sliding shafts, and hubs. Having gotten the car back on the road
I now notice a peculiar effect from the rear suspension. As I approach a
turn, I brake, turn in, and at the apex I accelerate out of the turn. The
problem I notice is that as the car approaches the apex it increasingly
leans, when I get on the throttle the car settles into a leaning and
slightly squatted attitude, as the car exits the turn, the lean goes away
but when I get off the throttle to resume cruising speed the rear of the
car wiggles. It seems as though the semi-trailing arm bushings are so
compliant that they allow excessive toe-in ( or toe-out) durring the
cornering process, and as the throttle is applied when accelerating out of
the corner the orientation of the drive wheels does not allow the
toe-in/toe-out to relax. When the throttle is ultimately released to
resume cruising speed, the toe-in is able to relax. The semi-trailing arm
bushings are stock repacements from The Roadster Factory. Have any of
the netters had similar problems? If my hypothesis is correct, I am
contemplating going to the harder ($25.00/bush) bushing the TRF sells.
Any comments?
David Brady
408-252-2480
dbrady@synoptics.com
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