Limitless Limitless on stock gearing - Calculating top speed - What is the transmission ratio?

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The stock limitless pinion/spur ratio is 1.26 (rounded up).

Thats a 27t pinion on a 34t spool.
 
What's the transmission ratio then? I'm trying to use RC Car GearCalc to see theoretically top speed.
It's not 127 on 2s.... Is it?
 

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Based on a limitless stock pinion and spool with stock tires.

Internal gear ratio -> 43 / 13 = 3.307
Spur-pinion ratio -> 34 / 27 = 1.259
Final drive ratio -> 1.259 * 3.307 = 4.16
Tire circumference -> 100 * 3.14 = 314
Tire rollout -> 314 / 4.16 = 75.48

RPM -> ( 2050 * 25.2 ) / 1.259 = 41,032

I have no idea how to calculate theoretical speed (haven't gotten there yet). This is based on 6S.
 
What's the transmission ratio then? I'm trying to use RC Car GearCalc to see theoretically top speed.
It's not 127 on 2s.... Is it?
That is the calculator I use.
For that spot that says transmission ratio put in 3.3

To get more accurate results don't put in 25.2 volts because in a speed run you have significant voltage sag. I'd probably input 19V as a ball park and that should make the calculated speeds pretty close.
 
That is the calculator I use.
For that spot that says transmission ratio put in 3.3

To get more accurate results don't put in 25.2 volts because in a speed run you have significant voltage sag. I'd probably input 19V as a ball park and that should make the calculated speeds pretty close.
Got it. It says 104MPH at 16.8V which I know it will never be, but just wanted the theoretical!
 
Sorry I'm being daft - what information did you use and what was the speed?
You just need to fill in the boxes with all the info relating to your RC.

The Limitless has a 13T diff pinion and a 43T diff spur, ...everything else will depend on your set up. E.g Motor Kv and tyre diameter etc.
Hope that helps.
 
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