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Old 08-05-2003, 11:01 PM   #1
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Default Final Drive Ratio

What final drive ratios do you suggest from your experience for 8, 9, 12, and 23 turn motors for touring cars on asphalt? and maybe your reason based on the track layout, motor wind, temperature, etc......anything else?

Have a great day!
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Old 08-06-2003, 12:45 AM   #2
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That's a lot to answer, would you be more specific for your own racing conditions?
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Old 08-06-2003, 01:44 AM   #3
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Ok. Let's make it specific.

I just wanna know in what region you would gear the car for the specified turn? Let's say an 8, 12, and 23 turn

Track: asphalt. small but flowing.
Ambient temp: 32deg Celcius

Cheers!
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Old 08-06-2003, 04:46 AM   #4
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What I do is adopt the + 10 rule for mod (20 tooth for a 10 turn, 21 for a 11 turn,...) and adjust from there. This is with a XXXS and 90 spur.

For stock, small but flowing track, I'd say start with 6.2 then adjust from there.

This is just me though.

Last edited by Addict sa RC; 08-06-2003 at 04:55 AM.
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Old 08-06-2003, 05:41 AM   #5
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With a tc3 8 turn 20 pinion 72 spur
12 turn 24 pinion 72 spur
19 turn 26 pinion 72 spur
27 turn 28 pinion 72 spur
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Old 08-07-2003, 01:07 PM   #6
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I use 9t 25/90 , 12t 30/80 on my HPI pro 3
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Old 08-07-2003, 02:13 PM   #7
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It depends on the size of the track you're racing on, and the car you're using, every car drive train is different.
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