# Bowling's Optimum Shift Calculator

Input Parameters Are the Following:
• ` Transmission Ratio One = 3.06 to 1`
• ` Transmission Ratio Two = 1.83 to 1`
• ` Transmission Ratio Three = 1.29 to 1`
• ` Transmission Ratio Four = 0.98 to 1`
• ` Horsepower = 61 at 3000 RPM`
• ` Horsepower = 82 at 4000 RPM`
• ` Horsepower = 94 at 4500 RPM`
• ` Horsepower = 106 at 5000 RPM`

# Computation Results:

### Using the Criterion for Maintaining the Same Horsepower Before and After Shift:

Finding Best Shift Placement Points For Ratio 3.06 to 1.83: Error: Search outside range - need more RPM range in HP table! Finding Best Shift Placement Points For Ratio 1.83 to 1.29: Error: Search outside range - need more RPM range in HP table! Finding Best Shift Placement Points For Ratio 1.29 to 0.98: Error: Search outside range - need more RPM range in HP table!

### Maximumizing the Area Under the Horsepower Curve:

Finding Best Shift Placement Points For Ratio 3.06 to 1.83:

• Found optimum shift RPM at 0, which achieves maximum area under horsepower curve, and lowers the RPM to 0 after shift
• Finding Best Shift Placement Points For Ratio 1.83 to 1.29:

• Found optimum shift RPM at 4993, which achieves maximum area under horsepower curve, and lowers the RPM to 3520 after shift
• Finding Best Shift Placement Points For Ratio 1.29 to 0.98:

• Found optimum shift RPM at 4995, which achieves maximum area under horsepower curve, and lowers the RPM to 3795 after shift

• Bruce Bowling
bowling@cebaf.gov
Bowling Superior