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3.2.3.8 Mass Air Flow (MAF) Sensor (optional)
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Mass Air Flow (MAF) Sensor
Figure 18
Installing / Replacing the optional Mass Airflow (MAF) Sensor
Your Victor or Super Victor System has the capability to run a GM digital Mass Airflow
sensor (MAF). A MAF sensor will feed the ECM airflow information which is used in the
control calculations and used to auto-calibrate the Volumetric Efficiency map.
The MAF can be used only for the auto-cal OF VE during dyno testing, or it can be run all
of the time; constantly adjusting for changes in airflow due to wear or engine
modifications. The sensor that should be used is a
1999-2002 GM # 25318411 or the
25341604
85 mm sensor from the '02 Corvette Z06
. If the sensor is only enabled for the
tuning session, be sure to turn the sensor off by selecting "none" in the MAF section of
the setup wizard. This will prevent Mass Airflow sensor faults during later operation.
In high horsepower applications, your system is capable of running two of these sensors
in parallel to keep restriction to a minimum.
Consult your Edelbrock representative for
information regarding adding and using a second sensor.
The mounting of the sensor is very important to accurate measurement and operation.
The sensor should be mounted as far away from the throttle body as possible (a
minimum of 12”) and between the air filter and throttle body. All tubing and bends
should be smooth with even cross-sectional area. Allow a minimum of 8” of straight
tubing in front of the sensor so that airflow is entering as straight as possible into the
sensor. Follow the factory method of plumbing where possible. Figure 18 shows a sensor