Do you know where temperature for SAE dyno correction is measured? Is it ambient temperature or they put some sensor into intake to measure the air directly sucked by engine?

Here http://wahiduddin.net/calc/calc_cf.htm they say: "The air temperature should ideally be the temperature of the air that is going into your engine." So how is it on the real dyno?

And another question: When I get the Dyno Correction Factor (Cf), what should I multiply this by? Should I multiply both torque and power by this one Cf factor? Or multiply only torque and then recalculate HP? Or vice versa?

Thanks.

 

SAE takes into account atmospheric conditions to correct the graph from raw(uncorrected).

CF is multiplied by the "uncorrected" factor to come up with the corrected number.

There are other conversions other than SAE so each conversion will have its own CF.

Both hp and tq are affected since tq=hp*rpm/5252

 

Thanks. Where do they measure the temperature for the SAE correction? Is it just an ambient temperature in the room or do they put the temp. sensor into your intake manifold?

 

Ambient is outside, not in the motor.