Rapid HotClean
New member
Just looking at all the specs. a gx390 has the same torque as a lifan 15 hp 420 @18.5 ft-lbs. The predator 13 hp is 17 ft-lbs of torque. a 20.3 hp honda has 35 ft-lbs, and a 22 hp lifan has 29 ft-lbs and the price is within $200 of each other. isn't torque the thing that matters when it comes to pressure washers ? So maybe the engines are that cheap for a reason. I guess the 15 hp is the most economical one out of the bunch.
When it comes to industrial engines most people buy horsepower. But what they really need is torque. They just don't know it. Torque = twist and twist turns that pump.