Using Air Motors

**mpinner** · 1st July 2004, 11:29

The fuel tank in my car has baffles which are supposed to stop or limit the movement of the fuel in the tank; the small length of pipe in my fuel tank does not move even though it has a rather large metal filter at the end, thereâ‚¬â„¢s just not enough room. I guess that it doesnt have to move as the car spends most of its time in the up right position and there is no need for it to operate upside down.

In fact when the car lands upside down (doing the mad jumps I do in it) the fuel leaks out the carburettor filter.

The fuel I use in my car has coloured dyes as standard, I use the illuminous yellow coloured fuel but for all you flamboyant ones out there a pink coloured fuel is out there too. The colours in the fuel also tell you the quantities of the oil to fuel ratio mixture you are using.

Depending on your application you can choose to use a throatier mixture (like yellow) or a more oiled cooler running mixture (like pink) as the engine gets its oil from the fuel.

Iâ‚¬â„¢m sure you already knew all this but my point is RC car engines are designed to run on dyed fuels and shouldnâ‚¬â„¢t harm them if the correct fuel is used when the engine is run in on it.

The electric starter kits you saw; are they the nose prop starter kind or are they built in with the engine? I have not seen those, my engine is a pull starter.

**grant_ploughbot** · 1st July 2004, 19:24

Is there really any point in the highspeed motors and engines everybody is talking about?
They just need gearing down alot anyway, meaning loosing weight for gear systems. Why not just buy a hefty low speed motor such as the EV warrior, or car fan motors. They can be placed directly onto discs, with all the grunt to get them upto speed in no time(Tantrum was run off a car fan motor and pimp2 off an EV warrior)
Much more simple and realiable than engines!!!

Grant-PloughBot-Team Rc Wars

1st July 2004, 20:47

You dont have to gear them. Faster motor equals a smaller disc, meaning less weight.

**sam_t** · 1st July 2004, 21:33

it also means its one hell of a lot harder to get the disk to bite in, look at the trouble pimp 2 had at newark, the disk was moving so fast the big blunt teeth kept skimming off the opponents. fast disks are also harder to balance.