steam

So you're trying to make a steam engine?

usually you push the piston each direction, for a single cylinder, every revolution will take 1000cc's of steam.

you will need to know the size of the piston, to calculate the pressure requirements & output torque.

Converting a multi cylinder, would be an easier task.

Is this a steam engine, and you just want to know amount steam needed, or is it a 2-stroke IC engine you hope to run using steam? Ref to 2 stroke single cylinder 500cc sounds like the latter, but you can't do that, leastways not without some mods, as the valve gear is very different.

Steam engines are always 2 stroke and as Garthh says, usually double-acting, in which case 1000cc of steam per rev at actual steam conditions, assuming the inlet valve is open throughout the stroke. If you know the P & T of the steam, you can work out the mass flow. But the P & T required depend on the power you want from the engine.

Cheers........Codey

Check with Lynx steam engine about conversion details. Yes, it will take some modifications, especially if you want some efficiency. E-mail beesidemeusa@yahoo.co.uk and ask about steam. Has done some research on the Net.

The following link can help get you in the right direction...

http://www.spiraxsarco.com/resources/steam-engineering-tutorials/steam-engineering-principles-and-heat-transfer/superheated-steam.asp