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Old 04-16-2010 | 02:39 PM
  #33865  
Crashby
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Joined: Apr 2004
Posts: 814
From: SF Bay Area
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Originally Posted by Josh Keller
Does anyone have any advice for tweaking and balancing a chassis?

I read most racers are balancing their chassis' with lead and electronic placement, rather than using the tweak adjustment screws.

I've almost got my chassis balanced using a set of Hudy Balancing Pins, but it's not perfect. Would it be a good idea to finish "balancing and tweaking" the chassis using the tweak adjustment screws?

I'm a former oval racer, so I'm trying to learn the 1/12th on-road procedures for proper chassis preparation. Balancing the chassis from left to right is all new to me.

Thanks for the help,

Josh
What I try to do is get the car balanced left to right and fore and aft during the build by the placement of the components on the chassis. Put your batteries in the chassis and then using either balance buttons or four mini scales and then start laying out your electronics. (Only the mini scales will measure fore aft weighting.) I try and do the chassis separate from the motor pod as it is easier to get the chassis balanced. The motor pod is what it is. To balance the pod you would have to add or remove material. Be careful about removing material from the motor. Some classes do not allow that kind of modification. After you have the car as balanced as you can get it, then with the car ready to go on the track, put the car on a tweak station. The balance beam type. We found that balancing from behind with the rear of the car on the balance beam produces a better setting. Make sure the rear tires diameter matched and the front tire diameter matches. I also disconnect the dampener tubes or side shock if you are using any as they can make getting the perfect setting harder. Use the set screws in the T bar to adjust. If you are using a link car then you can move the side springs up and down but we found that with link cars, you just have to have matching tires left to right and then back the springs off of the links or bottom plate of the motor pod so they are just clearing. Don’t forget to reconnect your dampener tubes or side shock. Been there, done that!!
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