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In case you want to know
how I'm doing,

Deer Valley, Arizona
Click for Glendale, Arizona Forecast

ZBUM's 1984 Nissan 300ZX WebSite

Here are some HP calculators for you to try. One uses weight & MPH the other uses weight & ET.

Elapsed Time (ET) is an estimate and real world results will vary with driver, track conditions and vehicle prep. Unsure? Then go actually race the 1/4 mile! If unsure of vehicle weight, visit a local truckstop or dragstrip.

Enter the vehicle weight and 1/4 mile trap speed
Vehicle Weight:
1/4 Mile Trap MPH:
Your Estimated Net Horse Power:
Your Estimated Flywheel Horse Power:

Enter the vehicle weight and 1/4 mile elapsed time
Vehicle Weight:
1/4 Mile ET:
Your Estimated Net Horse Power:
Your Estimated Flywheel Horse Power:

Enter the vehicle weight and wheel horse power
Vehicle Weight:
Wheel Horse Power:
Your Estimated 1/4 mile trap time:
Your Estimated 1/4 mile trap speed:
Calculations used:
                 / Trap Speed (mph) \ 3
  Horse Power = | ------------------ |  x Vehicle Weight
                 \        234       /

              
                 /     5.825    \ 3
  Horse Power = | -------------- |  x Vehicle Weight
                 \ Elapsed Time /

                             __________________
                          3 /  Vehicle Weight
 Elapsed Time = 5.825 x _  / ------------------
                         \/  Actual Horse Power

                           ___________________
                        3 / Actual Horse Power
Elapsed Speed = 234 x _  / -------------------
                       \/    Vehicle Weight