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RobertSmalls · 02-25-2009, 11:28 PM

I followed the instructions in the manual for creating a Horsepower gauge in my 1996 Subaru Legacy. The output of said gauge is about 30% higher than what would be plausible. It was showing something like 30BHP cruising around at 49mph. At redline and 80% throttle, it was showing 165BHP, while my engine is only rated for 135.

So, how does the SG calculate HP? It's obviously doing it wrong. Can I get it to multiply by a constant calibration factor?

Also, if a working HP gauge could be made, you'd probably want a few related gauges:
BSFC gauge = BHP/GPH, showing how many milligrams of fuel per second it takes you to make a horsepower.
Torque gauge = BHP/RPM, because that would be cool.

02-25-2009, 11:28 PM	#1 (permalink)
RobertSmalls Left Lane Ecodriver Join Date: Aug 2008 Location: Buffalo, NY, USA Posts: 2,257 Prius C - '12 Toyota Prius C Thanks: 79 Thanked 286 Times in 199 Posts	SGII Horsepower gauge & related gauges I followed the instructions in the manual for creating a Horsepower gauge in my 1996 Subaru Legacy. The output of said gauge is about 30% higher than what would be plausible. It was showing something like 30BHP cruising around at 49mph. At redline and 80% throttle, it was showing 165BHP, while my engine is only rated for 135. So, how does the SG calculate HP? It's obviously doing it wrong. Can I get it to multiply by a constant calibration factor? Also, if a working HP gauge could be made, you'd probably want a few related gauges: BSFC gauge = BHP/GPH, showing how many milligrams of fuel per second it takes you to make a horsepower. Torque gauge = BHP/RPM, because that would be cool.