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

From Raphael's video (i hope he's ok?),...the M-90, M-91 series engines fire & torque Kick so unrealistically Violent, that despite the wooden base mount weightings & reinforcements, my M-90 tries to kick the crankshaft off the Mains !! ....Estimating the Stock C/R at about 10 : 1, does Reducing the C/R to about 5 : 1 Significantly  reduce the torque  kick ??.....thx, ...tom.