a collection of calculators that may be helpful to scooter enthusiasts.
CLICK HERE if you need to do a
the amount of fuel and the desired mix ratio(__:1) and this calculator
will tell you the amount of oil needed in both ounces and milliliters.
calculator can help you make homemade octane booster from a number of
chemicals. If you enter the gallons of mixed fuel you wish to make, the
octane of the gasoline you will be using, choose and additive, and
enter the percentage of the additive that you wish to use this
calculator will tell you how much gasoline, selected additve (in either
oz or gal), cleaning agent (such as mineral spirits), and lubricating
agent (such as transmission fluid) is needed as well as an approximate
octane rating of the mixture. The octane rating is likely to be off by
a small margin, but it should be a close estimate. You need to research
mixture levels and adverse effects of these chemicals. Some of these
chemicals can be harmful to fuel lines, sensors, and more. Most are not
safe at levels of 30% or higher, some much less. Do your research
before deciding to make your own octane booster. This calculator is
just here to help anyone that is mixing their own fuel.
you enter all the required fields, this calculator can tell you the
fuel economy, fuel cost, oil cost for 2 strokes, and cost per mile for
fuel and oil. If you are using this calculator for a 4 stroke you can
leave the oil fields blank.
the tire width(mm), aspect ratio, and wheel diameter(in) and this
calculator will tell you the tire's diameter and circumference in
inches and millimeters. Circumference in mm is often used to calibrate aftermarket speedometers.
tire circumference(in), final drive ratio(__:1), and engine RPM and
this calculator will give you the maximum speed for that setup. This
may be a bit inaccurate for CVT driven scooters. You would actually
need to know the RPM that the clutch bell is turning to be completely
accurate. This calculator can give you a good idea of max speed
differences using different tire sizes, different gear ratios, or
setups that rev a little different.
This calculator can help you improve the accuracy of speedometers that require a tire size input for calibration. Enter the current tire size in your gauge (usually circumference in mm). Then you will need to have a trip odometer reading from a ride as well as a known accurate mileage from the same ride (usually GPS info) to enter. The calculator will output a corrected tire size for the gauge based on your inputs.
the bore and stroke in millimeters and the number of cylinders and this
calculator will tell you the displacement in both cubic centimeters and
the bore in millimeters and this
calculator will tell you the compression ring end gaps in inches for
two-stroke and four-stroke engines.
the volume of the cylinder and the volume of the combustion chamber and
this calculator will tell you the compression ratio (referred to as
secondary compression in 2 strokes). For multi-cylinder engines, just
use the columes from one cylinder. If you wish to find the effective
(corrected) compression ratio of a 2 stroke engine, enter the effective
cylinder volume instead of the total cylinder volume. Don't forget to
add the volume of the cylinder head gasket to the volume of the
combustion chamber. You can find the head gasket's volume by using the
displacement calculator above (enter the gasket's thickness in mm into
the stroke field). You also need to take deck height and the piston
(dished, flat, or domed) into account.
calculator will tell you the combustion chamber volume necessary to
achieve your desired compression ratio (__:1). If you are using a head
gasket, remember that it's volume needs to be subtracted from the
combustion chamber volume shown here to get a correct result.
the crankcase volume(cc) and cylinder volume(cc) and this calculator
will show you the primary compression ratio of a 2 stroke engine.
This calculator allows you to convert crankshaft angle in degrees from TDC (Top Dead Center) to mm or inches from TDC. This is helpful for setting up many racing ignitions. You will need to know stroke in mm and connecting rod length in mm. Conrod length is measured center to center.
This calculator allows you to convert piston position in mm from TDC to crankshaft angle in degrees from TDC (Top Dead Center). This is helpful for setting up many racing ignitions. You will need to know stroke in mm and connecting rod length in mm. Conrod length is measured center to center.
1/4 mile elapsed time (E.T.) in seconds and trap speed along
the vehicle weight with driver (lb) and this calculator will give you
an estimate of horsepower and torqe to the wheel(s) as well as power to
weight ratio (HP per lb).