Originally Posted by
macdude
I know I have seen this somewhere on the web. But I lost the link and would like to know it again. It had a bunch of setups from TOP drivers and other useful info on setting up and building the TOP car. What I am really interested in though is the conversion chart for 48P gears. I know everyone is running 64P but my local hobby shop doesn't stock anything smaller than 38 tooth and that is just too big. I have lots of 48p stuff so if I just changed the spur I would probably be all set. But would like to know what size to get.
thanks
75T/48 is the same diameter as the kit 100T/64.
One point to consider is that any pinion over 30T/48 won't slide easily onto the motor without bumping the top deck on the way, so it's worth basing your spur choice on that.