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  #1  
Old 10-13-2009, 03:04 AM
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Default rooster crawler with 19 turn? but low geared.

here is my question, i have an rc4wd 2 speed tranny, and a 2-1 transfer case running my rooster with 55turn, and it is way to slow. is it a bad i dea to run my 19t motor if the gearing is really low. is it heat i need to worry about. or do i just forget it and just up the pinion? full throttle right now is just faster than walking pace. running 7.4 lipo.
i am running it in my scaler, that weighs over 10 lbs. not a comp style crawler.
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  #2  
Old 10-13-2009, 10:59 PM
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Don't go lower than 27 turns. Adjust your gearing so the ESC and engine are the same temp. after a run. That = efficiency.
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Old 10-14-2009, 04:35 PM
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I run a 17t with a 7:1 gear reduction and it feels great but I'm using an FXR. its for my 1:6 scale f150, well over 10lbs.
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Old 10-14-2009, 04:42 PM
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just bump up the tooth count on your pinion 2 or 3 teeth and see how warm things get.
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Old 10-14-2009, 04:44 PM
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I wouldn't recommend it, but you could probably get away with it. The 19 is going to draw much more power than a 55, so watch it.
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Old 10-14-2009, 04:46 PM
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and with so much higher RPM's you will lose alot of efficiency, and gain alot more heat by using the 19turn. your risking at the minimum smoking the motor, if not the esc if you bind it up. but you will most definitely lose ALOT of run time.
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Old 10-26-2009, 08:20 PM
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I run a 19t motor with a Rooster Crawler ESC in an R2D 2 speed in a scaler. Nothings burnt up yet, but when the rig get a nice size load the ESC does stall out. The R2 wont last long with the wheelspeed of a 19t though, I would suggest a 35t lathe. Its got gobs more wheel speed then a 55turn, you wont lose too much torque either.
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Old 01-11-2010, 08:55 AM
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I had the same type question so now i got the answer. I was gonna run a Reedy challenger 19t in my sons Honcho but that motor get way too hot running in a Slash so ill just wait for either a 35 or 45t.
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