Anyone ever tried to cool an outboard with a closed loop water system? Answered
I'm making a land vehicle based on a Merc 275 hp 6-cyl outboard. Any ideas on heat load, radiator size, and in general, cooling it? Anyone ever tried to cool an outboard with a closed loop water system? We can fab up anything reasonable, and would like to hold cost down. Major issues are rad size, flow rate, and electric pump choice. I already have the motor (so don't try to talk me out of that decision). It will not have the final drive on it, so no built in pump. I can choose whatever works well.