Handy equations thread

[Mr Whippy]

Just put anything here that you think is useful.

We will tidy it up etc as it builds up.


∆ Camber = KPI (COS(Steering Angle)) + Caster (SIN(Steering Angle))

http://www.optimumg.com/OptimumGWebSite/Documents/OptimumK Help File v1.1/KPI _ Caster_legacy.htm

 

[Harey]

Ft-lbs x 1.35 = Nm

Kmh x 0.6214 = Mph

Lbs / 2.2 = Kgs

those are some that I pretty commonly use

 

[EAP3D]

e=mc^2

 

[Lipton]

I know this one from Miura. To calculate the torque @ peak power when making torque curves from scratch there`s a very simple formula. Let`s say we have a 2.0diesel with 400Nm @ 2000rpm and 150hp @ 400rpm. The formula is as follows: 150(max power)/1.35x9549/4000(max power rpm)=265.25Nm@4000rpm