21-03-2014, 08:38 PM
Thought so, it's probably as simple as multipling the measured torque by SQRT(Temp actual/288) so if the temperature is above the baseline value (Most likely 288K or 293K) BHP measured will be increased slightly and if below it will be reduced slightly to give a representative value.
I've just thought of a problem with this system that's not easily correctable, and that's the fact that the temperature correction isn't being applied to the air entering your engine, just the temperature of the cell. If they connect through the OBD they can measure the temperature at your air flow meter but then the air has already been heated up in the engine bay.
I just looked at my latest dyno plot and it had ambient temperature at 11.4 degrees C, no way was it that cold in there so it would be interesting to know where the temperature probe is mounted, probably in the door way...
I've just thought of a problem with this system that's not easily correctable, and that's the fact that the temperature correction isn't being applied to the air entering your engine, just the temperature of the cell. If they connect through the OBD they can measure the temperature at your air flow meter but then the air has already been heated up in the engine bay.
I just looked at my latest dyno plot and it had ambient temperature at 11.4 degrees C, no way was it that cold in there so it would be interesting to know where the temperature probe is mounted, probably in the door way...