Gearing

[RageKage76]

Would I be able to use a 10 tooth centrifugal cluch with a 25 tooth sprocket on the axle?

 

[HONEYBADGERFTW]

Found these links that may help:

https://cutpriceracing.com.au/store/Guide-Gear-Ratios/

http://www.jtsprockets.com/fileadmin/files/jtgearratio.pdf

 

[itsid]

Would I be able to use a 10 tooth centrifugal cluch with a 25 tooth sprocket on the axle?

No you are not!

certainly not and there is no way you would be able to.

'sid

PS to tell you what you COULD run we need to know what you have to work with
(kart weight incl passengers, rear wheel size, engine horse power, etc)

 

[landuse]

Would I be able to use a 10 tooth centrifugal cluch with a 25 tooth sprocket on the axle?

Absolutely no way. you will need at least a 50-60T clutch with 13" wheels. Any larger wheels you will have to get a higher tooth count. Tel us what you have though, as even these figures I gave you depend on many variables

 

[RageKage76]

I run a predator 212 and my wheel size is 4" without the tire on it and I'm 210 pounds.

 

[itsid]

rimsize doesn't matter WHEELsize (WITH TYRE!) is what makes the difference.
and the kart's weight is important as well (I think I said so above...didn't I)

but truth is.. chances are 4" rims are likely in the realms of 10-13" tyres, and a 210 lbs butt means a 400 lbs kart (with you in)

and with that we're just in the 6:1 ratio landuse talked about...

'sid

 

[RageKage76]

The go kart with me in it is around 360 pounds and the wheel size is 10".

 

[itsid]

a bit conservative estimate:
KartInfo by kartcalc.net:

[FONT="Verdana"]
[B][U]KART[/U][/B]
[INDENT][I]RW diameter[/I]: [B] 10 in | 25.4 cm[/B]
[I]Total weight[/I]: [B] 363.76 lbs | 165 kg[/B]
[/INDENT]
[B][U]ENGINE[/U][/B]
[INDENT][I]Original HP[/I]: [B] 7[/B]
[I]Asummed HP[/I]: [B] ~7[/B]
[I]Torque[/I]: [B] 10.21 ft lbf | 13.85 Nm[/B]
[I]RPM[/I]: [B] 3600[/B]
[/INDENT]
[B][U]TRANSMISSION[/U][/B]
[INDENT][I]Final ratio[/I]: [B] 5:1[/B]
[/INDENT]
[B][U]PERFORMANCE[/U][/B]
[INDENT][I]Max Wheel Torque[/I]: [B] 51.08 ft lbf | 69.25 Nm[/B]
[I]Acceleration[/I]: [B] 10.83 ft/s² | 3.3 m/s²[/B]
[I]Top Speed[/I]: [B] 21.42 mph | 34.47 km/h[/B]
[/INDENT]
[B][U]PROBLEMS[/U][/B]
[INDENT][B]You might burn your clutch/belt![/B]
[B]Gear ratio too high![/B]
[I]Suggested final ratio[/I]: [B] at least 6.1:1[/B]
[/INDENT]
[/FONT]

Sooo 6:1
Or what I'd suggest instead is a TAV2 kit (series 30 TC with backplate instead of std. cent. clutch)
with 4:1 final ratio:
KartInfo by kartcalc.net:

[FONT="Verdana"]
[B][U]KART[/U][/B]
[INDENT][I]RW diameter[/I]: [B] 25.4 cm | 10 in[/B]
[I]Total weight[/I]: [B] 165 kg | 363.76 lbs[/B]
[/INDENT]
[B][U]ENGINE[/U][/B]
[INDENT][I]Original HP[/I]: [B] 7[/B]
[I]Asummed HP[/I]: [B] ~7[/B]
[I]Torque[/I]: [B] 13.85 Nm | 10.21 ft lbf[/B]
[I]RPM[/I]: [B] 3600[/B]
[/INDENT]
[B][U]TRANSMISSION[/U][/B]
[INDENT][I]Final ratio[/I]: [B] 4:1[/B]
[I]TC type[/I]: [B]  series 30 6" driven[/B]
[I]Lowest ratio[/I]: [B] 10.8:1[/B]
[I]Highest ratio[/I]: [B] 3.6:1[/B]
[/INDENT]
[B][U]PERFORMANCE[/U][/B]
[INDENT][I]Max Wheel Torque[/I]: [B] 149.58 Nm | 110.32 ft lbf[/B]
[I]Min Wheel Torque[/I]: [B] 49.86 Nm | 36.77 ft lbf[/B]
[I]Acceleration[/I]: [B] 4.05 m/s² | 13.29 ft/s²[/B]
[I]Top Speed[/I]: [B] 47.88 km/h | 29.75 mph[/B]
[/INDENT]
[/FONT]

'sid

 

[RageKage76]

Ok Thank you for ur help. ��