hi, this was built as an experimental scratch built engine and i
learning as i go along, im not too bothered about the top end speed, just need to know that my machining skills are upto building a workin engine, the rest will come from advice and experience,
steve wrote:- I had assumed you need to keep the passage to the cylinder as minimum length and maximum area to help it breathe in and out. If this is important then your model will reveal it.
im not too sure wether the ports will be large enough for some seriou top end revs and i could have maybe used larger inner diam pipe for th exhaust,, i think it was a case of "Pi*s Poor Planning makes Pi*s Poo Performance!!" we live and learn!
steve also wrote:- Are you concerned that the steam may condense in the pipes? Maybe it will need a little lagging. Though maybe you are using compressed air.
i have thought about lagging the pipes with some tin foil and string the boiler has a super heater and this should also help a littl against the pipes condensing up,
i would be quite happy for the engine to turn at 50 rpm, i ge mesmorised by them, the engine wont be put to any application as it just for fun and to show the kids, who knows i may even peel them awa from their xbox 360
bil
-- blueswar
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