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Looking for plans- lots of references to the edwards 5cyl, but most of those links are expired. Are any others available?

Looking to build a small(ish) nitro engine, but I'd like to get some real performance out of it. I don't have access to real heat treating equipment, so steel/steel sleeve and piston is out of the question, so steel/cast iron is where I'm leaning unless I ring the piston. This will be multi...

finally going forward with an engine build. i'd like to get at least moderate performance, but i'm going to build a test platform prototype, which brings me to my question: Ive decided on a steel liner, aluminum piston and cast iron rings. I know this is more difficult than say a steel liner CI...

Looking to pair a boiler to an engine to extract about 7 or 8 mechanical horsepower. Will be flash steam design, and will only need to supply maximum steam for approx 90 seconds or so. Thought about a traditional piston style, but I have rpm requirements that will place a piston design out of...