Current engine performance correction standard : 80/1269/eec.
The reference ambient conditions are 24.85 deg. C, 99 KPa (990 mbar)
Power correction is Po = a.P where a is the correction factor and P is measured power
Correction factor a= (99/p)^1.2*(t/298)^0.6
p = dry atmospheric pressure (kPa) = total barometric pressure - water vapour pressure
t = atmospheric temperature K
Correction based on 10'C temperature drop alone without pressure compensation
  Std Car Scoop Ps delta
t=reference temperature K + average delta temperature C 308.23 298.5  
Correction factor a= (99/99)^1.2*(t/298)^0.6 0.979952025 0.998994638  
Power output based on 193ps (169.16 Kw) @ 24.85 C 193.05 196.80 3.75
Correction based on 10'C temperature drop & pressure compensation 4.48mbar @40mph
  Std Car Scoop Ps delta @40mph
t=reference temperature K + average delta temperature C 308.23 298.5  
Correction factor a= (99/p)^1.2*(t/298)^0.6 SCOOP p=(990+4.48)/10 & t=298+0'C 0.979952025 1.004421933  
Power output based on 193ps (169.16 Kw) @ 24.85 C 193.05 197.87 4.82
Correction based on 10'C temperature drop & pressure compensation 11.59mbar @120mph
  Std Car Scoop Ps delta @120mph
t=reference temperature K + average delta temperature C 308.23 298.5  
Correction factor a= (99/p)^1.2*(t/298)^0.6 SCOOP p=(990+1011.59)/10 & t=298+0'C 0.979952025 1.013045378  
Power output based on 193ps (169.16 Kw) @ 24.85 C 193.05 199.57 6.52
Correction based on 10'C temperature drop & estimated pressure compensation 17.4mbar @135mph
  Std Car Scoop Ps delta @135mph
t=reference temperature K + average delta temperature C 308.23 298.5  
Correction factor a= (99/p)^1.2*(t/298)^0.6 SCOOP p=(990+1011.59)/10 & t=298+0'C 0.979952025 1.020101202  
Power output based on 193ps (169.16 Kw) @ 24.85 C 193.05 200.96 7.91
Therefore pressure boost @ 120mph in mbar@2542mv = 11.59mbar
Mbar boost calculated from gradient of MAP sensor Voltage/pressure = (Volts*gradient+Constant) 1011.59362
11.59*0.014=0.1622psi
Gradient (m) of line = 187.11
Constant c=535.96
y=mx+c