Originally Posted by
robk
The width of the car makes it so much better, that if the tires work ok, it's all over for the normal F104. It would have to be a separate class.
Example: On carpet the F103 is usually .3-.4 sec. per lap faster than an F104 on foams. The cars are not radically different, except in width and length.
I'm no A-main driver, but I've switched to the 103 front arms on my 104 and there hasn't been a transformational change in the handling. Perhaps there are some other issues lurking in my setup, but I'd rank tires as the biggest single influence over how the car goes.
The weight distribution of the battery between the two cars is most likely also be a contributer to their relative performance. Putting some weight over the back wheels helping is possibly a testament to this.
Either way, I still have a blast driving it!
Ran close to a 70mm rollout at a large outdoor track recently with a GTB hooked up to a 17.5T and it was simply good fun. Motor was only starting to get above ambient temperatures, so I probably could have gone harder.
