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Last Post 06 Sep 2011 11:20 AM by  Andy Bettencourt
MAF/MAP regulation question
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Basic Member
Basic Member

26 Aug 2010 11:40 AM

    I'm sorting out what's needed during the winter for my Improved Touring build and I've been unable to make heads or tails of a couple parts of the rule book regarding MAF's and MAP's, it seems to be a bit muddled.

    D.1.4 states:
    [quote]All air entering the intake tract shall pass through the carburetor or fuel injection air inlet. All air must also pass through the stock air metering device, eg MAF, or AFM, etc if so equipped. Air intake source shall be within the confines of the engine compartment or stock location.

    and D.1.6 states:
    [quote]The engine management computer may be altered or replaced. A throttle position sensor and its wiring may be added or replaced. A MAP or MAF sensor and its wiring may be added. Other existing sensors, excluding the stock air metering device, may be substituted for equivalent units.

    Now, can I have it so that air is passing through an inactive MAF (since it has to be there and D.1.4 states it must pass through it) and a MAP is doing all the air metering for my motor?

    Andy Bettencourt
    Basic Member
    Basic Member

    06 Sep 2011 11:20 AM
    The air has to pass through the required devices, it needs to work 'machanically' but since you are allowed an aftermarket ECU (that has limits on what sensors you can add) you don't have to 'listen' to the electronic output.
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