[pgarner]

in theory yes it works. And HDI, your 406, i doubt it will have a red line as high as 5252rpm but when i used your the details you gave you admitted it was very close to what your dyno showed.

im sure that if someone posted up figures from a tractor then they would work out the same

when you brake down most things do do with cars it just comes down to maths. sometimes very complex maths that most of us would never understand