Mr. Gasket 8703 Hot Rod Calculator User Manual
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Calculating adi and density altitude Using elevation
For this example, you are at Top Gun Raceway in Fallon, nev.,
and only have access to air temperature and humidity data.
However, you know the track’s Elevation is about 3,963 feet
above sea level. With these three variables — Air Temperature,
humidity and Elevation — you can still calculate ADI and
Density Altitude. The current weather conditions are posted as
51° F and 5% relative humidity at 9 a.m.
Calculate the Air Density Index (ADI) and Density Altitude.
KeysTroKe
disPlay
1. Clear all stored values and enter track Elevation:
(Clear All)
all Cleared
eleV 3963.
f
2. Enter current local measured weather conditions:
TeMP 51. °f
rH% 5.
%
3. Calculate ADI and Density Altitude:
eleV 3963.
f
adi 87.969
%
d-alT 4323.207
f
Calculating adi Using a fuel Correction index
For this example, the current local measured weather conditions
are 80° F, absolute Pressure of 29.15 inHg, and 53.5% relative
humidity. your race car ran best, under these baseline condi-
tions, with #78 jets.
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