Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

Now that's  a "Lathmaster"  & a well up-graded piston !!   You've  probably reduced the factory's hi C/R  down to 'bout 5:1 & combined with those friction reducing, oil retention "record player" skirt grooves should really help getting the revs down to a more realistic full scale "hit"/coast speed....Fantastic machining job... Can't wait for you to post some video action ! ........tom.