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Author Topic:   Trailing Arm Location
start79
Dirt Full Roller

Total posts: 56
posted April 15, 2001 09:03 PM
Can anybody give me the readers digest version of how moving trailing arms up or down affects handling? Thanks

wfoondirt
Dirt Maniac

Total posts: 142
posted April 15, 2001 10:33 PM
if i remember right you have a three link car. changing the angle of the trailing arms will change the location of the instant center. by increasing the angle of the trailing arm you increase the amount of anti-squat (lift) on that side of the car. common practice is to run the left trailing arm steeper than the right side thus the left side will lift more under accel and promote better weight transfer to that wheel. the downside to running the trailing arms at diff angles it that it causes loose roll steer ( the lr moves forward as the chassis rolls to the right). personally i don't like to see a lot of roll steer built into a car because is makes the car less consistant for the driver. small amounts of roll steer are normilly a necessary evil on most dirt cars to acheive decent forward bite. personally i prefer to run a three link with both links level and tune it with the torque link not only with the angle but with the lateral location, this way the roll steer is minimized and isnt changed when adjustments are made.

start79
Dirt Full Roller

Total posts: 56
posted April 16, 2001 07:02 PM
WFOONDIRT...Thanks, I appreciate the help.

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