# dyno-ing your car w/o a machine?

**URL:** <https://forums.speedlife.net/t/dyno-ing-your-car-w-o-a-machine/44986>\
**Category:** NYSpeed Automotive\
**Created:** [March 13, 2008, 6:18pm UTC](https://forums.speedlife.net/t/dyno-ing-your-car-w-o-a-machine/44986 "2008-03-13T18:18:10Z")\
**Posts on this page:** 1\
**Showing post:** 18

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**Author:** ![Fry](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/fry/32/7284_2.png) [@Fry](https://forums.speedlife.net/u/Fry)\
**Post date:** [March 14, 2008, 7:01am UTC](https://forums.speedlife.net/t/dyno-ing-your-car-w-o-a-machine/44986/18 "2008-03-14T07:01:33Z")

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If you can get the Cd and frontal area of your vehicle, the rest is pretty much cake.

Would you even have to take into account rolling friction? It’d be there on a dyno too. Well, it would for the drive wheels. So yeah you’d have extra resistance from the non-drive wheels.

Fuck just guess.

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