Functional Artist
Well-known member
There are (3) main variables to figuring out how fast a (given) motor will propel your kart
1.) Motor RPM's
2.) Gear Ratio
3.) Tire Circumference
By inputting your
...motor RPM's
...gear ratio
...& your tire circumference
in to this equation, you can figure out what your, potential, MPH would/could be
MS/GR=ASxTC=IM/FT=FMxHR=FHxMM= MPH
Motor Speed/Gear Ratio=Axle Speed x Tire Circumference = Inches per Minute traveled/Foot(12) = Feet per Minute traveled x Hour(60) = Feet per Hour traveled x MPH Multiplier(.000189) = Miles Per Hour
* Using e-Lemon-aid, as an example
...@ 24V (2,500 rated RPM's)
...an 8:1 gear ratio
...& tires with ~32" circumference
2,500/8 = 312.50
312.50x32" = 10,000.00"
10,000.00"/12 = 833.33
833.33x60 = 49,999.80
49,999.80x.000189 = 9.45 MPH
Motor speed is (2,500 rpm's) divided by the gear ratio (8) = axle speed (312.50)
Axle speed (312.50) times the wheel circumference (32") = inches per minute traveled (10,000.00")
Inches per minute traveled (10,000.00") divided by inches in a foot (12") = Feet per minute traveled (833.33)
Feet per minute traveled (833.33) times minutes in an hour (60) = feet per hour traveled (49,999.80)
Feet per hour traveled times miles per hour multiplier (.000189) = 9.45 MPH
.
1.) Motor RPM's
2.) Gear Ratio
3.) Tire Circumference
By inputting your
...motor RPM's
...gear ratio
...& your tire circumference
in to this equation, you can figure out what your, potential, MPH would/could be
MS/GR=ASxTC=IM/FT=FMxHR=FHxMM= MPH
Motor Speed/Gear Ratio=Axle Speed x Tire Circumference = Inches per Minute traveled/Foot(12) = Feet per Minute traveled x Hour(60) = Feet per Hour traveled x MPH Multiplier(.000189) = Miles Per Hour
* Using e-Lemon-aid, as an example
...@ 24V (2,500 rated RPM's)
...an 8:1 gear ratio
...& tires with ~32" circumference
2,500/8 = 312.50
312.50x32" = 10,000.00"
10,000.00"/12 = 833.33
833.33x60 = 49,999.80
49,999.80x.000189 = 9.45 MPH
Motor speed is (2,500 rpm's) divided by the gear ratio (8) = axle speed (312.50)
Axle speed (312.50) times the wheel circumference (32") = inches per minute traveled (10,000.00")
Inches per minute traveled (10,000.00") divided by inches in a foot (12") = Feet per minute traveled (833.33)
Feet per minute traveled (833.33) times minutes in an hour (60) = feet per hour traveled (49,999.80)
Feet per hour traveled times miles per hour multiplier (.000189) = 9.45 MPH
.