if you're not removing the governor a TC is the only viable option I can see you getting into the mid to high 30's
Assuming you're 200lbs or less (112lbs the minibike plus TC and fuel ~ 120 lbs I'd say)
KartInfo by kartcalc.net:
Code:
[FONT="Verdana"]
[B][U]KART[/U][/B]
[INDENT][I]RW diameter[/I]: [B] 50.8 cm | 20 in[/B]
[I]Total weight[/I]: [B] 145 kg | 319.67 lbs[/B]
[/INDENT]
[B][U]ENGINE[/U][/B]
[INDENT][I]Original HP[/I]: [B] 6.5[/B]
[I]Asummed HP[/I]: [B] ~6.5[/B]
[I]Torque[/I]: [B] 12.86 Nm | 9.48 ft lbf[/B]
[I]RPM[/I]: [B] 3600[/B]
[/INDENT]
[B][U]TRANSMISSION[/U][/B]
[INDENT][I]Final ratio[/I]: [B] 5.8:1[/B]
[I]TC type[/I]: [B] series 30 6" driven[/B]
[I]Lowest ratio[/I]: [B] 15.66:1[/B]
[I]Highest ratio[/I]: [B] 5.22:1[/B]
[/INDENT]
[B][U]PERFORMANCE[/U][/B]
[INDENT][I]Max Wheel Torque[/I]: [B] 201.39 Nm | 148.54 ft lbf[/B]
[I]Min Wheel Torque[/I]: [B] 67.13 Nm | 49.51 ft lbf[/B]
[I]Top Speed[/I]: [B] 66.04 km/h | 41.03 mph[/B]
[/INDENT]
[/FONT]
So the absolute max with a TC is just above 40 mph
in case the governor is still limiting to 3600 rpms
uhmm.. assuming 20" wheels that is..
I see two different ct200U specs
one saying 20" one 19"
one saying a 3/4" clutch one a 5/8" clutch
colemens website nor partslist is actually stating any numbers
not on the wheel nor sprocket sizes...
would you mind and let us know?
Wheels,
and all sprockets tooth counts in engine to wheel order?
(clutch - js in - js out - wheel)
that might help the next guy out.
thank you.
Anyways.. with 19" wheels the speed would be the same'ish
since you could remove another tooth or two from the rear sprocket without running into issues
KartInfo by kartcalc.net:
Code:
[FONT="Verdana"]
[B][U]KART[/U][/B]
[INDENT][I]RW diameter[/I]: [B] 19 in | 48.26 cm[/B]
[I]Total weight[/I]: [B] 319.67 lbs | 145 kg[/B]
[/INDENT]
[B][U]ENGINE[/U][/B]
[INDENT][I]Original HP[/I]: [B] 6.5[/B]
[I]Asummed HP[/I]: [B] ~6.5[/B]
[I]Torque[/I]: [B] 9.48 ft lbf | 12.86 Nm[/B]
[I]RPM[/I]: [B] 3600[/B]
[/INDENT]
[B][U]TRANSMISSION[/U][/B]
[INDENT][I]Final ratio[/I]: [B] 5.5:1[/B]
[I]TC type[/I]: [B] series 30 6" driven[/B]
[I]Lowest ratio[/I]: [B] 14.85:1[/B]
[I]Highest ratio[/I]: [B] 4.95:1[/B]
[/INDENT]
[B][U]PERFORMANCE[/U][/B]
[INDENT][I]Max Wheel Torque[/I]: [B] 140.85 ft lbf | 190.97 Nm[/B]
[I]Min Wheel Torque[/I]: [B] 46.95 ft lbf | 63.66 Nm[/B]
[I]Acceleration[/I]: [B] 10.17 ft/s² | 3.1 m/s²[/B]
[I]Top Speed[/I]: [B] 41.11 mph | 66.16 km/h[/B]
[/INDENT]
[/FONT]
But since you don't want to crack the 40 anyways... 60 tooth axle makes a nice round number and gives you ~37.7(19") to 39.7 mph (20")
just in your ballpark
'sid
PS if you want to stick with a clutch and jackshaft I'm afraid you MUST remove the governor to achieve such speed, otherwise the clutch will be as expensive as the bike itself.
