World's Fastest R/C Car, anyone?

[sanddrag]

I somewhat screwed that up didn't I? Of course you can never get more power out of a motor and gearbox than you can out of just the motor itself. But what I was thinking is that the drill motor wouldn't have enough power to reach those kinds of speeds. But perhaps it is indeed possible. The RC motors spin at more like 28,000 rpm but the drill motor I believe has more torque.

Anywhoo, we can sit here and engineer this all day but I think untill one of us gets off our chair and starts making it we'll never know if its possible.

/me rummages through old RC parts

EDIT: /me kicks self for selling carbon fiber pan car chassis I once had.

[Max Lobovsky]

Originally Posted by sanddrag

Anywhoo, we can sit here and engineer this all day but I think untill one of us gets off our chair and starts making it we'll never know if its possible.

Haha! Yes! That's the real engineer attitude! I wonder what sorta power source you can use that can give you such a high power/weight ratio (not energy/weight, lithium would suck in this case). Considering it runs for only a few seconds, maybe even capacitors?

[Billfred]

Nah...it has to still be able to run afterward.

The 111 mph record run, IIRC, was done on about 24 sub-C cells, all wedged into an Associated L3O. So I don't think that using Sub-C cells is a death sentence...unless you're dealing with some insane high voltage (like a hybrid car's batteries).