Mr. Gasket 8703 Hot Rod Calculator - Manual (Page 24)

22 —
H
ot
r
od
C
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™
elapsed Time
Elapsed Time, or ET, is the amount of time in seconds it
takes a vehicle to travel from start to finish over a measured
distance, typically one quarter of a mile. your calculator’s ET
predictions may vary from other ET prediction sources pri-
marily due to traction. The Hot Rod Calc assumes ideal con-
ditions with no tire slippage and 100% converter lockup, and
the predictions are for estimation purposes only.
AdI, densIty AltItude And
WAteR vAPoR Content
Calculating adi and density altitude Using
absolute Pressure
For this example, you are at the Los Angeles County Fairplex
Auto Club Raceway in Pomona, Calif. The track’s Elevation is
about 1,025 feet above sea level. The current local measured
weather conditions are 63.2° F, absolute Pressure of 28.83 inHg
and 58% relative humidity at 9 a.m.
note: Elevation entry is not required if absolute Pressure is entered.
Calculate the Air Density Index (ADI) and Density Altitude.
KeysTroKe disPlay
 0.
1. Enter current local measured weather conditions:
 TeMP 63.2 °f

(Pressure)
P-abs 28.83
inHG
 rH% 58.
%
2. Calculate ADI and Density Altitude:
 eleV 0.
 adi 94.641
%
*
 d-alT 1873.414
f
(cont'd)
UG8703E-B-inside.indd 22 3/3/2010 3:03:58 PM