This calculator gives the required horsepower that you will need to achieve your target elapsed time on the 1/4 mile. It is a good tool to model changes to see if you can be competitive in a given field or class.
| variable | description |
| elapsed time | your elapsed time target |
| weight | the running weight of your vehicle, including driver |
| flywheel horsepower | the required flywheel horsepower to run your et |
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