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Rcpilot -> RE: Toy snowmobile into fast snowmobile? (1/14/2008 6:10:59 AM)
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All you gotta do is rewind the stock motor.
The guys who run RC rock crawlers rewind their motors to turn SLOWER and give more torque.
You could do the same exact thing with your motor to make it faster. It will loose low end torque, but top speed should improve if you wind it right.
Do a google search for rccrawler. Go to the board and look at the forum for electronics. Dig into that forum and you will find stickies at the top of the page. go to the sticky about motors and ESC. There is an article in there about rewinding your motor for more speed or slower speed.
I recently bought the wire to rewind my glow starter motor. It's one of those old Hobbico starters with the planetary gear drive. Works okay, but when engines are cold or when you get up into the larger size--it just doesn't cut the mustard. I'm going to rewind it to turn a little slower, but hopefully it will improve my torque by 20% +/- I don't care about loosing speed. It's plenty fast. I want it to have more torque to crank over those larger engines.
You can do it. Just do some homework first. Rewinding the motor would be the simplest and cheapest thing you could do. It will cost you about $8 for wire and a couple hours of your time. It will probably work a lot better than tearing the sled apart and trying to mod a different/bigger motor or drive train into it.
Keep in mind, if you make it faster--battery life will suffer. It might last 15 minutes now and go 8mph. You could very well get it going 20mph, but I'll bet your battery life will drop to 8 minutes.
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