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Old 06-19-2010, 09:30 AM   #1
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Default TF-5

Hi,

I have set up the brushless on the TF-5 and it was well quick.

The tyres were rubbish and its quite controllable.

I checked my car. and i saw the spur gear with 2 teeth or one teeth that has been dented a bit. is it ok to use or must change it?

My ratio is 36T pinion and 68T spur.. what is the FDR for it as i dont know the internal thing ratio...

Thank You.
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Old 06-21-2010, 01:16 AM   #2
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bump bump
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Old 06-21-2010, 02:13 AM   #3
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The number spur gear teeth, divided by pinion gear teeth multiplied by internal ratio (2.5) will give you the FDR.

If the spur / pinion gear meshing is not noisy you should be OK, but keep an eye on it.

hope that helps
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Old 06-21-2010, 05:19 AM   #4
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how do i calaculate the internal ratio?
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Old 06-21-2010, 05:35 AM   #5
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Quote:
Originally Posted by catalzzy View Post
how do i calaculate the internal ratio?
the internal ratio is how often the internal transmission turns to one turn of the cars wheel, which for your car, is 2.5.
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Old 06-21-2010, 03:45 PM   #6
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Quote:
Originally Posted by catalzzy View Post
how do i calaculate the internal ratio?
u need to divide the diff pulley to the center pulley. =internal ratio... or just go to gearchart.com
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