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  • Converters
    • Torque Converter Stall
    • Circle Track
    • XTM and XFM Series
    • HD / Street & Strip
    • Performance
    • Full Race
    • The Billet Generation
    • 10″ – 12″ Hybrid
  • Transmissions
    • Packages
    • Circle Track
    • Full Race
    • Street and Strip
    • 4L80E Automatic OD
  • Components
    • Planetaries & Gear Sets
    • Deep Pans
    • Oil Pumps
    • SFI & Heavy Duty Flexplates
    • Hardened Input Shafts
    • Transbrake Solenoid
    • Valve Bodies
    • Adapter Plates
    • Yokes & U-Bolts
    • Oil Coolers & Fans
    • Assemblies & Mounts
    • Kevlar & High Static Bands
    • Dipsticks & Tubes
    • Friction Plates & Kolene Steels
  • Kits
    • Bearing Kits
    • Service Maintenance Kit
    • Valve Body Kit

    • Transmission Kits
    • Transmission Box Kits
    • Washer, Bushing and Teflon Ring Kits
    • Basic Overhaul Race Kit
    • Premium Overhaul Race Box Kit
    • Premium Overhaul Race Kit Box with Kolene Steels
    • Master Overhaul Race Box Kit
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Calculators

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CalculatorsHPAdmin2025-04-11T18:01:08+00:00

1/4 Mile Horsepower (Time)

1/4 Mile Horsepower (MPH)

1/4 Mile MPH to 1/4 Mile ET Conversion

1/4 Mile ET to 1/4 Mile MPH Conversion

1/4 Mile ET to 1/8 Mile ET Conversion

  • Enter your 1/4 Mile ET and click the enter key.

1/8 Mile ET to 1/4 Mile ET Conversion

  • Enter your 1/8 Mile ET and click the enter key.

% Converter Slip Calculator

1/4 Mile RPM Calculator

Optimum Rearend Ratio Calculator

Optimum Tire Height Based on MPH, RPM, Converter Slip & Rear Gear

1/4 Mile MPH Calculator by RPM, Tire Height, Rearend Ratio, Trans Ratio, & Converter Slip

Tire Height Based On Sidewall Designation

Tire Width (mm) and Aspect Ratio

Effective & Equivalent Gear Ratios Based On New and Old Tire Heights & Original Gear

Carburetor Sizing for Normally Aspirated Engines (Normally Aspirated)

Engine Displacement

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