by RichD » Sun Aug 10, 2014 8:26 am
The answer from my point of view is that it depends on several factors. If you enter your cars in formal races it is much more important to true your tires. The stakes are higher if you race against the best proxy car builders and record holding car builders. Many of the improvised methods that have been posted will improve the performance of your cars, but to get the tires perfect you need to use a well designed machine. Some types of tires are relatively easy to true because they sand easily, that includes most rubber and urethane tires. I race on Super Tires and those are very difficult to sand. Any method that uses a fixed sanding media tends to overheat Supertires, which might damage the tire or cause it to come unglued. Even if you use a more sophisticated and expensive machine like a Hudy your tires will not turn out to be round if you use the wrong technique. Applying excessive pressure as you grind the tire can result in a smaller diameter tire that is still out of round. I recently examined the tires on several poor performing proxy cars that looked like they had been trued. The cars would make a thumping sound as they went around a wood track, indicating that the tires were off.
A final point to consider is that a truing machine is not going to be a good investment if you are not going to use it very often. If you only need a few sets of trued tires you might be able to find someone that can do the job for you.
Last edited by
RichD on Tue Aug 12, 2014 7:06 am, edited 1 time in total.