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Old 04-17-2011, 09:13 AM   #1
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Default Gearing for a tc6

I am wondering what pinion gear i should use with the 87T spur gear that comes with the car.
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Old 04-17-2011, 09:41 AM   #2
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need to know the class/motor
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Old 04-17-2011, 09:59 AM   #3
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I find the novak brushless gearing chart to be a good start to gearing your car, assuming your running brushless. It's usually on the conservative side, but you can gear it 2 teeth pinion or so up from what is recommended and still be ok
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Old 04-17-2011, 10:18 AM   #4
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the motor is a Tekin Redline brushless 17.5 turn. I will for the time being running this car in a sport class for touring cars
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Old 04-17-2011, 10:19 AM   #5
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boosted or no
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Old 04-17-2011, 10:24 AM   #6
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Originally Posted by 20 SMOKE View Post
boosted or no
I am not sure what u mean by boosted so herre is a link to the motor its the sensored 17.5T http://www.teamtekin.com/blmotors.html#sensored
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Old 04-17-2011, 10:32 AM   #7
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boosted is timing no timing is stock spec there is a big difference in gearing
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Old 04-17-2011, 10:39 AM   #8
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boosted is timing no timing is stock spec there is a big difference in gearing
is this something that can be turned on and off in the ESC if so i will run it stock for now till i learn to drive this thing better
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Old 04-17-2011, 11:07 AM   #9
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y,
http://www.teamtekin.com/hotwire_RS.html
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Old 04-17-2011, 11:13 AM   #10
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If you are using a Tekin RS, you will need to update the firmware to vegas2.12, but yes, you can select various timing profiles in the ESC from zero timing (blinky) up to the two custom profiles where you can add boost/turbo to the point of blowing the motor if you aren't careful.

The classes at your local track will determine how you set everything up. If they offer a 17.5 zero timing class then you will set the ESC to that mode and you will want an FDR much lower than if you were running boost. Some guys gear as low as 3.8FDR for 17.5 blinky.

If they only have 17.5 super stock (open ESC), then you would gear between 5.6 and 7.0 (depending on track size, flow and several other factors) and use one of the custom profiles to add boost and turbo. I race in this class and as an example, on a 90x45 flowing layout carpet track with a Duo3 motor my FDR is currently 6.0. I use 50 boost, range 5000-17000, 11 turbo, ramp 2, delay 0.04. I previously used a Tekin Redline and was geared around 6.4

If you try to run zero timing in a class that allows boost, you will get run over.

As an FYI, that stock 87tooth spur on your TC6 is 48pitch, so you must use 48pitch pinions with that.
To calculate your Final Drive Ratio: Spur divided by Pinion multiplied by the internal ratio (for a TC6 the IR is 2.0). So its (87/pinion)x2=FDR
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Old 04-17-2011, 11:14 AM   #11
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get 64 pitch. 100 or 88t. More options. 48 pitch is for offroad.
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Old 04-17-2011, 11:37 AM   #12
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get 64 pitch. 100 or 88t. More options. 48 pitch is for offroad.
In my vta car I still use 64pitch, but in my fast car I switched to 48pitch. I had a few too many races end early from stripped spurs. Have not had a problem since switching to 48p. The mesh doesn't need to be quite as perfect as it does when using 64p and can handle the motor flexing a bit in a hard impact without messing up the gears. 64p when meshed right is smoother and allows for finer adjustments to the ratio, but they don't take as much abuse as 48p can.
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Old 04-18-2011, 03:38 AM   #13
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is there a chart somewhere that shows what range gear ratios to run for 4.5, 5.5, 6.5, 7.5, 17.5 etc etc?
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Old 07-06-2014, 01:50 AM   #14
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gearchart.com
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