Dynojet correction/real CR

[Q45tech]

Dynojet has a correction fractor equation that their software automatically applies. It is:

Cf = 1.18(29.22/Bdo)*(((It+460)/537)^0.5-0.18) where

Cf = correction factorBdo= Dry ambient absolute barometric pressure (in_Hg)It = intake air temperature29.22 = standard pressure (in_Hg)537 = standard temperature (Rankine)

So an intake temp of 77F is standard.

They don't correct for humidity which can cause a 1-2% error by itself.

Since they don't measure the fluid temps [friction changes as fluids get hotter] or the tire roller interface temps [coupling to roller improves as the tires get hotter -up to a point].4-5% accuracy would be hard to prove!