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motor limit?

Old 01-03-2005, 05:29 PM
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aero528
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Default motor limit?

ok, im new to electric rc, i have a esc, that is rated at 20 turns, would it be ok if i ran a 19 turn motor wiht it? what will happen? what if i cooled it better? thanks for the info!
Old 01-03-2005, 05:30 PM
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Default RE: motor limit?

yea it would work!..... i ran a reedy quad mag on my stock 20 turn esc with no problems
Old 01-03-2005, 05:32 PM
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Default RE: motor limit?

It will work in cool weather, and if you have a decent esc, if not exspect to see ur esc in smoke.
-Wes
Old 01-03-2005, 05:32 PM
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Default RE: motor limit?

You can probably get by with it, but I wouldn't press your luck by running 7 cells or any extreme gearing.
Old 01-03-2005, 05:33 PM
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Default RE: motor limit?

ok, how many turns is that? what about a 11 turn motor? it would be 6 cells, but i dont know about the gearing. it would be one of two esc's, a duratrax sprint, or a mrc230. thanks!
Old 01-03-2005, 05:36 PM
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Default RE: motor limit?

11 turn? I thought you were running a 19T?

An 11T motor would eat either one of those esc's in about 3/10 of a millisecond...
Old 01-03-2005, 05:40 PM
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Default RE: motor limit?

hahah, yes thats what i thought. i was asking about both. if i get that tc3, ill try it with the duratrax first. why woudl it eat the escs? just to many amps? thanks!
Old 01-03-2005, 05:42 PM
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Default RE: motor limit?

exactly
Old 01-03-2005, 05:45 PM
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Default RE: motor limit?

You will be trying to pull too much power through the ESC than it can cope with. Personally I would not go lower than it's rating or you could be pull money out of your wallet.

Paul
Old 01-03-2005, 05:48 PM
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Old 01-03-2005, 05:49 PM
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Default RE: motor limit?

how fast do you think a graphite tc3, with a 21 turn firball motor, sanyo2400, and mrc230 will go? thanks!
Old 01-03-2005, 05:51 PM
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Default RE: motor limit?

If you dont mind not having reverse the dura trax streak will handle a 12 turn motor on 10 cells. its only $40 on tower hobbies
Old 01-03-2005, 05:52 PM
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Default RE: motor limit?

hmm...i might have to look into that.
Old 01-03-2005, 05:56 PM
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Default RE: motor limit?

2400s are fine but you want less then 21 turns to go fast. if you dont want to spend a lot the duratrax streak is $40 and you can get a decent 12 turn with ball bearings and adjustable timing for $30 from a few different companies. good luck.
Old 01-03-2005, 05:58 PM
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Default RE: motor limit?

i already have a mrc230 for my micro rs4, i would use that. i also wanted to do some drifting.
Old 01-03-2005, 09:11 PM
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Default RE: motor limit?

One of the most common mistakes about getting started in electrics is that kids today shoot right for the motor with the fewest turns possible. Myself, I prefer running the extremely close races in the stock class, but some like to be in the mods rebuilding motors after about 5-10 runs.

The fewer the turns, the hotter the motor will run, and the shorter run time you will have too. This is where picking a battery pack comes in. If you want to do modified racing, lets say 16 turns on down, its recommended that you use a NiMH battery pack. The reason is that they discharge slower compared to a Nicd battery pack. The slower the battery discharges, the longer the run time you have. Thats what makes it perfect for modified racing. Now, in the stock class, a Nicd is highly recommended because they discharge faster. Since these batteries discharge faster, that means more punch and power going right to your motor. Also, since its a stocker, it wont hurt you in run time compared to running a 2400 nicd battery powering a hungry 14t motor. Running a NiMH in a stocker might get you longer run times, but it is noticeable on how much slower the car/truck feels.
Old 01-03-2005, 10:09 PM
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Default RE: motor limit?

that helps alot. i am almost a complete newb when it comes to electric rc. ask me anything about a nitro rc(mostly trucks), and i could tell you(how the engine works, ect...), but with electric, i dont even know how a motor works. i know the general concept of turns and the com and brushes, ect... so, the less turns the higher rpm? the more turns the higher torque? do i have that right? than why can motors wiht less turns(ie less torque) push bigger pinions? thanks for the help guys, you really teach me alot about this wonderful hobby. ohh and, how fast would a 9 turn motor, wiht a cyclone c2 esc, running a 25tooth(im guessing), in a regular(with rally conversion and foams) tc3 go?

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