[SiliconKnight]

When I was a kid, I used to race Tamiya 4 wheel drive cars (1:32 scale). Some of my friends graduated to 1:12, and 1:10 stuff, but I never had the money to do that. Besides, I'd rather build a robot :-). There were lots of mods people do, such as drilling out gears, hollowing out chassis, etc, to get that extra speed advantage - and that applies to all scale racing.

I knew a guy that put lapping compound inside his tranny on his RC car, to "lap them in". Within a few hours, he was back at the hobby store - his gears had turned into mush. I don't know what sort of grit he used, but needless to say, the only thing that I ever put on my gears after that was "speed oil". (A mixture of sewing machine oil and light lithium grease - one of those tricks that your friends show you and you just stick to it ... )

-=- Terence