hey all, i wanted to change out my 50cc uberscoot stock motor for predator 212cc, can i leave the 2 speed gearbox on or does it need new tranamission, i wanted to go hopefully 40mph with scooter and 212cc, i weigh 264...any info is appreciated
I simply pinch both rings with my fingers on the sides of the piston where the transfer ports are then carefully guide the cylinder over the piston and marry them both together..Think he is talking about compressing the rings on the piston to put the cyld on. If you have 2 wood ice cream sticks modified and someone hold the cyld you can press the rings in and slide the cyld over the piston.
Yeah I agree although you're basically comparing a 39cc engine to 212ccs.....The piston sizes are world's apart.I've found with my drift trikes, that the predator or Honda GX200 motors delivers huge torque and a very flat power curve of near peak power through the rev range.
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The polini or China C1 only pull when the revs really get up into powerband.
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So it depends on application, but if you wanted power at any range the GX200 will deliver. If you want to bog down low but have high end top speed the polini is probably the right way to go.
The other advantage of the polini is size and weight. They are little motors and look like the belong on a goped.
I'm about to make another goped bigfoot converted to either cag or polini. I've done a cag with great success and want to do it again...but more top end would be fun
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And the next project will be based on this one.
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Guess what I'm saying is torque is more important for acceleration than power. But power get top speed.
Torque = the ability to do work
Power = how much work you can do