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Old 04-18-2006, 02:57 PM   #31
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Quote:
Originally Posted by BeastFromDaEast
that is yea , lol jokes on him/her
LOL

no it isn't.

I think everyone agrees that there is nothing wrong with your car. They are not meant to be driven extremely slow. The noise (high pitched) you hear is the motor acting like a speaker. It is resonating back and forth extremely fast with only such a small amount of throttle. You are hearing the frequency of the speed control.

They work by switching the power on and off really fast. The frequency stays the same but the ammount of time the on pulse is "on" determines your speed. Shorter pulses are slow speed, longer on pulses result in more speed.

The armature in the motor is unable to overcome the strength of the magnets when you apply only a very small ammount of throttle. so instead of spinning, it rings back and forth in the motor can; producing the noise you hear.

See, when the armature is moved in the magnetic field of the magnets,(by your hand or by pushing the car) the magnets produce a current in the coils that is opposite the magnetic field of the magnets. That current in the coils produces an opposing magnetic field which causes resistance to rotation, so the armature wants to basically stop. That is the "notchy" feel you are feeling when you try and slowly push the car, or rotate the motor with your fingers.

Who is the joke on again?
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Old 04-19-2006, 06:03 AM   #32
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I had that prob when i was riding around my backyard. try to open your differentials... probably there is a rock stuck or your belt is too tight. if you got any probs or questions... go to this site... http://www.schumacher.clara.net
That site is probably the best site for MR4TC- custom help. Hope you fix the prob soon
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Old 04-19-2006, 07:22 PM   #33
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Please don't throw out any suggestions that can make this more complicated. I think the first thing you need to do is to go to your hobby shop and get them to explain to you how a motor works. I take it you're just beginning, and it doesn't seem like we can explain to you over the internet how things work. But the bottom line is, your car is normal, it's running fine, and you don't need to worry about anything.
-Josh
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Old 04-20-2006, 12:43 PM   #34
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Quote:
Originally Posted by PitCrew
LOL

no it isn't.

I think everyone agrees that there is nothing wrong with your car. They are not meant to be driven extremely slow. The noise (high pitched) you hear is the motor acting like a speaker. It is resonating back and forth extremely fast with only such a small amount of throttle. You are hearing the frequency of the speed control.

They work by switching the power on and off really fast. The frequency stays the same but the ammount of time the on pulse is "on" determines your speed. Shorter pulses are slow speed, longer on pulses result in more speed.

The armature in the motor is unable to overcome the strength of the magnets when you apply only a very small ammount of throttle. so instead of spinning, it rings back and forth in the motor can; producing the noise you hear.

See, when the armature is moved in the magnetic field of the magnets,(by your hand or by pushing the car) the magnets produce a current in the coils that is opposite the magnetic field of the magnets. That current in the coils produces an opposing magnetic field which causes resistance to rotation, so the armature wants to basically stop. That is the "notchy" feel you are feeling when you try and slowly push the car, or rotate the motor with your fingers.

Who is the joke on again?

apsolutly agree.prob a bit confusing for a learner lol.
to the original question go to the track adn ave fun.
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Old 04-20-2006, 01:03 PM   #35
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Or he could just be pulling a prank and having a laugh at everyoness expense? if so its good nuff to give me the giggles
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Old 04-20-2006, 01:11 PM   #36
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yeah real funny ah?
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Old 04-20-2006, 01:14 PM   #37
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Quote:
Originally Posted by BeastFromDaEast
i would go outside with it but its not waterproof
ssmart move. just wait till you go down to your local track. I'm quite sure some one there will help out, with all your questions. Hey don't worry we all had to learn from somewhere.

Quick question is this your first time racing, touring. if, so I would sudjest maybe pick up a 27turn stock motor. and wait till you more comterable with your car handling on the track before you start to play with that hot mod.

hey my .02 worth
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