Drag Racing Tech - Density Altitude(DA)?
04-17-2004, 04:33 PM
How do you calculate for DA?
04-17-2004, 04:40 PM
The link below will do it for you.
This link will provide you with the weather conditions by zip code. Just input your zip.
You will also need to get the elevation of the track you run at.
04-17-2004, 04:50 PM
I just found out that the DA for the day I ran was 6500ft. I ran a 13.4@107mph before the H/C. Do I use the altitude correction factors for DA or actual elevation? Which is 4500ft.
you would use your DA to figure the correction if you are trying to see what your car runs at sea level. This page will save a couple steps if you know the weather/track elevation:
04-17-2004, 09:10 PM
So my 13.4@107mph run corrected is a 12.2@116mph. Nice!
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