Does anyone know of a web site or calculator that takes UNCORRECTED RWHP chassis dyno data and coverts it to SAE CORRECTED data? That's all I need, just a web site addy, or calculator location where this can be done.

Thanks for any and all info!

 

I don't, but if this was on a Dynojet, you could take the raw .DAT file from the dyno, and run it through the WinPEP viewer that you can get at dynojet.com, and correct/redraw to your heart's content.

Dave

 

Try this:

Click Here

 

LPEdave, thanks for the heads up, but, I do NOT have the data file itself. All I have is a printed "graph" that I wanted to pick a few points off of and correct to SAE standard horsepower numbers.

Truedualws6, that's definately the KIND of web site and/or calculator I am looking for, but the one you referred me to requires an input for the "vapor pressure" of water in the air at the time of the test, and all I have is "relative humidity" info. Do you, (or anyone else out there), know what the water vapor pressure is when it's 90F with 41.6% relative humidity???

Thanks anyway for your replies.

 

There is a link in the "link" above to calculate saturated vapor pressure:

http://wahiduddin.net/calc/density_altitude.htm

Once you calculate the saturated vapor pressure, you multiply it by the relative humidity, e.g. 0.416 to get the actual vapor pressure.

 

Fred, thanks for spotting the calculator in the above link to determine the "saturated "vapor pressure at temperature. I got it now. We just multiply the relative humidity times the "saturated" vapor pressure to get the actual "partial" vapor pressure due to water vapor at the test temperature to then input into the correction factor equation.

Thanks to ALL who replied.