Clutches
- Thread starter minibikekid16
- Start date
you will go slower if you put a larger sprocket on your clutch but will have more power. Slightly.
Tinker with the numbers on this web page ( assuming #35 chain ) to figure this out for yourself and estimate your speed.
http://www.gokartracing.org/Calculate.htm
If you want to convert your tire diameter to circumference then go here.
http://www.onlineconversion.com/circlesolve.htm
Tinker with the numbers on this web page ( assuming #35 chain ) to figure this out for yourself and estimate your speed.
http://www.gokartracing.org/Calculate.htm
If you want to convert your tire diameter to circumference then go here.
http://www.onlineconversion.com/circlesolve.htm
I think you have that backwards quix 
A larger clutch sprocket with the same axle sprocket will increase your maximum speed and decrease the overall ratio meaning you will feel like you have less torque multiplication.
The higher your ratio (axle sprocket / engine sprocket) the lower your top speed will be and the faster you will take off.
The lower your ratio (axle sprocket / engine sprocket) the higher your top speed will be and the slower you will take off.
Just like riding a mountain bike!
A larger clutch sprocket with the same axle sprocket will increase your maximum speed and decrease the overall ratio meaning you will feel like you have less torque multiplication.
The higher your ratio (axle sprocket / engine sprocket) the lower your top speed will be and the faster you will take off.
The lower your ratio (axle sprocket / engine sprocket) the higher your top speed will be and the slower you will take off.
Just like riding a mountain bike!
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I just want to clear something up: gear ratio has no effect on power. No matter what the gear ratio is, power stays the same. Torque and rpm, however, will change.
Power = torque * rpm / constant
So, for a given engine, power will always stay the same if you change the gear ratio. But this power can be modulated to produce more torque (by lowering rpm), or more speed (by lowering torque).
Torque = Power * constant / rpm
rpm = Power * constant / torque
So, as you can see, rpm and torque are inversely proportional to each other.
If you have more teeth on your clutch, the engine will make fewer revolutions to make the wheel spin 1 turn. This will result in more speed (rpm), but less acceleration (torque).
However, there is a limit to the speed you can reach. If you increase your gear ratio (lower numerically), there may not be enough torque left to reach that speed. So, past a certain point, a higher gear ratio can actually make you go slower.
Power = torque * rpm / constant
So, for a given engine, power will always stay the same if you change the gear ratio. But this power can be modulated to produce more torque (by lowering rpm), or more speed (by lowering torque).
Torque = Power * constant / rpm
rpm = Power * constant / torque
So, as you can see, rpm and torque are inversely proportional to each other.
If you have more teeth on your clutch, the engine will make fewer revolutions to make the wheel spin 1 turn. This will result in more speed (rpm), but less acceleration (torque).
However, there is a limit to the speed you can reach. If you increase your gear ratio (lower numerically), there may not be enough torque left to reach that speed. So, past a certain point, a higher gear ratio can actually make you go slower.
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