Spun-out sport

Radio Control Car Action, Aug 2000 by Dominguez, Mike

I have a Bolink Sport 2000 with a Monte Carlo body that I run in my street with a Trinity Chameleon motor and Novak Duster speed control. It works OK up to about 1/2 throttle, but it spins out as soon as I get it going fast. I have tried loosening and tightening the diff, and I installed softer rear tires, but nothing helps.

MIKE DOMINGUEZ

Your car is spinning because of bad aerodynamics. I bet that the rear panel of your Monte Carlo is completely intact. This traps air under the trunk area and causes the rear of the body to lift at speed. This "unweights" the wheels enough to take away traction, and the car spins. You can try a couple of things: first, cut out the rear panel up to the trunk lid to allow air to flow through the body more easily. This should be enough to allow you to reach full speed, but you'll probably need more traction for turns. A rear wing will really help here (BRP is a good source), or if you really don't care how your car looks, a Lexan buggy wing will do the trick. You'll need wing buttons, music wire and wing mounts to install the wing on the rear pod (all should be available at your local hobby store, along with installation advice). With the wing installed on the pod, its downforce is applied directly to the chassisnot to the body-and your car will really stick. Don't be surprised if you have too much rear traction when you've finished.