Motorized Wagon Steering Troubleshooting

[outbackjack]

Hi Guy's great site!

I am working on a motorized radio flyer project and I am trying to tune in the frame design. During my first test ride i noticed I have run into a problem. As i let off the throttle I experience a pull from left to right. When I built the frame I started with the following the castor was at 20 and the camber about 10 . Origionaly the frame was designed level but when I added the rear differential and some douglas golf cart rims this put the front end on an incline. Based on the "jerking" left to right what would be the main cause?

Thanks for the help!

 

[Doc Sprocket]

Interesting. Got pics?

 

[outbackjack]

Here it is,

 

[outbackjack]

I started with tow in and tried tow out. It made all the difference. Would this be a solution that masks another problem? It now drives straight and handles o.k , it just a parade toy so speed is not an issue.

 

[Doc Sprocket]

I'm not really sure what might cause the wonky handling in such a short, narrow vehicle. Because it's footprint is so small, things will be touchy. What's the camber like with the added rake?

 

[r97]

that thing looks insane! i want one!

 

[Kenny_McCormic]

Reminds me of an old drag car! Whats it got for a power plant? Keep in mind toe out tends to cause darty behavior at high speed. What kind of surface are you on when it does this? Try lowering tire pressures to get some "suspension", a car with blown shocks behaves somewhat like you describe on gravel or rough roads.