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Old 07-16-2006, 05:56 PM   #1
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Default Tamiya TA04 pinion/spur combo?

Looking for any advise on a proper spur/pinion gear selection for a 27t motor. seems that the 83/25 combo is way over geared. just fried a esc (12t limit one) and a 3300 and a poss rev of the monster stock motor. So i just ordered a C027 Pro to install next time. And have to come up with a new ESC. This is my 7 yr old son R/C and he wants to so badly get it up and running asap.

Any advice is much thankfull
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Old 07-16-2006, 07:03 PM   #2
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Go to www.gearchart.com and run the combo to find out the gear ratio(internal is 2.133). You can also print it out and put it in your tool box. Good luck.
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Old 07-16-2006, 11:43 PM   #3
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You seem to be geared okay. With the CO27 I'd start in the 6.90 range. I'd probably would start with a 93 spur and 29 or 30 pinion.
If you need to stick with the 83 spur then 26 pinion. This of course depends on the size of your track. On a large track I might try 6.0~6.5. Check to make sure your gear mesh is okay... If it's too tight then that might be your problem. Also check the rest of your car for any binding.

Last edited by minicooper; 07-17-2006 at 12:00 AM.
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