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Old 01-29-2005, 10:56 PM
  #10596  
AdrianM
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The pros use Shoo-Goo to mount their servos. You can pull the servo off if you really want to and the remaining Shoo-Goo peels off clean from the chassis. Any servo tape is too thick and will make you car have bad bump steer. Shoo-Goo lets the servo sit 1/16" lower and this eliminates most of the bump steer. The bump steer (its bump toe-in) that remains you want to keep as this makes the car turn harder into corners. As you car rolls in a corner the bump toe in will make your outside tire turn in wards more by a few tenths of a degree. This gives you more steering.

To set your car up right for lay down servos you Shoo-Goo the servos or screw it down with the side tabs on the newer servos, get a Kimbrough servo saver and mount the ball studs in it using the holes closest to the servo. If you use the mid or outer holes you will have too much tie rod angle and tons-o-bump toe (very bad). Using the inner holes will make the tie rods parallel to the chassis and this will give just a touch of bump toe-in.

The amount of bump toe in you should have is barely noticeable. If you clearly see it when you compress you front suspension you have too much.

To tune the bump steer or to eliminate it and make your car neutral you add washers under the ball studs on you steering spindles.
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