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Go Kart Engine and Torque Converter Tech Forum for discussing go kart engines and torque converters (Briggs, Tecumseh, Suburu, Comet etc)

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  #1  
Old 04-07-2016, 08:36 PM
ModdedMotor212 ModdedMotor212 is offline
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Default Kart is too torquey.Smaller sprocket question.

So i have a 1 wheel drive kart with a Torque Converter ratio of 4.8:1.

Problem is it LOVES to spin the tires and lay rubber for 2 seconds before it even starts to move and afterward it keeps on spinning. Now as awesome as i thought this would be, i'd never thought i'd say this, but it has much more torque than i desired.

**? Question- How much of a torque decrease i would have if i change from a 10 tooth driver to a 12 tooth driver? mainly needing to know if it would spin too much . i love the spin but not to the point i can't move anywhere.

i would use a 14 tooth but i cant find any for a #41 chain. and cant find a smaller driven sprocket than 48 with a bolt hole circle of 2-7/8'' for a #41.

Last edited by ModdedMotor212; 04-08-2016 at 03:23 AM. Reason: Changed title.
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Old 04-08-2016, 06:07 PM
ModdedMotor212 ModdedMotor212 is offline
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i really didnt expect anyone to know this since the majority of people are off roaders and the search feature yielded no results i've been looking for.


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Old 04-08-2016, 07:39 PM
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ckau ckau is offline
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If it were me , the first thing would be to use a live axle. Distributing the power to both rear wheels means less spin and more pull. It's simple enough to drill any sprocket with a lower tooth count to fit a 2-7/8 bolt pattern
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Old 04-08-2016, 08:32 PM
ModdedMotor212 ModdedMotor212 is offline
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Quote:
Originally Posted by ckau View Post
If it were me , the first thing would be to use a live axle. Distributing the power to both rear wheels means less spin and more pull. It's simple enough to drill any sprocket with a lower tooth count to fit a 2-7/8 bolt pattern
i forgot to add a vital piece of information.. my budget is very limited so i'm restricted to a dead axle but you do have a very valid point of drilling my own holes in a sprocket.
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Old 04-23-2016, 01:41 AM
ModdedMotor212 ModdedMotor212 is offline
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So i now have a 4:1 ratio.
It still spins and i just found a site with the same specs as a TAV sprocket.
i STILL need to know what is the highest ratio i can go?

i'm thinking about trying a 16 tooth driver sprocket now to get a ratio of 3:1
is that too much or does anyone know otherwise?
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Old 06-23-2016, 10:31 PM
ModdedMotor212 ModdedMotor212 is offline
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update:
So it has been exactly 2 months and i just ordered a 36 tooth sprocket for my axle .
that would give me a 3:1 gear ratio for my really lightweight kart. With 4:1 ratio AND my newly aquired .290 cam @ 104LSA this tire REALLY loves to spin before it gets traction now. SO.. that being said, new gear ratio it is. and also will be purchasing a live axle kit.
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Old 10-17-2018, 02:34 AM
Zonia Zonia is offline
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Distributing the power to both rear wheels means less spin and more pull
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Old 10-17-2018, 05:57 AM
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Picking a ratio that suits your setup is largely down to what you're doing, experimenting. might want to look into martin sprockets for taper lock or split bushing sprockets to give you a better selection. on the flip side of the live axle, you will have more understeer in turns.
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