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Computech Systems RaceAir Pro - Page 3

Computech Systems RaceAir Pro
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3
This program will calculate a bypass flow jet change for a continuous flow
mechanical fuel injection high speed lean out system. See Important
program information on page 21.
8 Square Area Page 22
This program will easily calculate the area of several nozzles or jets and
provide a single orifice diameter equivalent.
2 Blower OD Page 22
This program will calculate blower drive speed in relation to crankshaft speed
based on pulley tooth count or circumference.
3 Meth. Spec. Page 23
This program is used in conjunction with a hydrometer and thermometer to correct
the specific gravity of methanol when checking for moisture contamination.
4 Gas. Spec. Page 23
This program is used in conjunction with a hydrometer and thermometer to correct
the specific gravity of gasoline.
5 Nitro % Page 23
This program is used in conjunction with a hydrometer and thermometer to
determine the corrected nitro percentage of a measured sample.
6 EGT Correct'n Page 24
This program will correct the indicated or observed engine exhaust gas
temperature (EGT) for variations in engine air inlet temperature. The corrected
EGT value can be used as a tuning aid.
7 EGT Predict'n Page 24
This program will calculate the indicated or observed engine exhaust temperature
(EGT) from a corrected EGT and the current engine air inlet temperature.
DIAL-IN key
1 Standard Page 25
This program will predict an elapsed time (ET) dial-in, for 1/8 and 1/4-mile Drag
Racing, based on 1 previous good run and the change in horsepower correction
factor due to a weather change. Note: This program requires changing the fuel
selection in SET-UP, Program Setup, Fuel Setup when using methanol.
2 Density Altd Page 26
This program will predict an elapsed time (ET) dial-in based on 3 previous good
runs and the change in density altitude due to a weather change.