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-   -   Is Anyone Using This Weather Site? (https://classracer.com/classforum/showthread.php?t=78858)

cad 03-21-2021 11:05 AM
Re: Is Anyone Using This Weather Site?
 
I look at it for fun/reference, but never to dial the car. That is what a dedicated weather station is for. #Computech for me.

Clark

Ron Ortiz 03-23-2021 11:01 AM
Re: Is Anyone Using This Weather Site?
 
Check this out.

https://wahiduddin.net/calc/calc_hp_dp.htm

Stan Weiss 03-23-2021 11:55 AM
Re: Is Anyone Using This Weather Site?
 
1 Attachment(s)
Quote:
Originally Posted by Ron Ortiz (Post 637321)

I have not used it so can not say how well it works.


It look like it uses the DynoJet SAE J1349 Dyno Correction factor as 100%. Most people will have had their engine on an engine dyno which uses SAE J607. Notice the DA = 1946 at 100% on this calculator. J607 at 100% is a DA = 0.


Stan

Ron Ortiz 03-23-2021 12:46 PM
Re: Is Anyone Using This Weather Site?
 
Not sure if I understand you, why would you use -90 for dew point.

Stan Weiss 03-23-2021 01:08 PM
Re: Is Anyone Using This Weather Site?
 
Quote:
Originally Posted by Ron Ortiz (Post 637329)
Not sure if I understand you, why would you use -90 for dew point.

As I now look at it again. I really should have used something lower. While I did get Relative Humidity to 0% and Vapor Pressure to 0 in Hg there was still 0.01 hPa Vapor Pressure.

Stan


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