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Thread: Pro flo 4 info

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    Wideopen's Avatar
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    Default Pro flo 4 info

    If you choose to go forced induction, there are some items you'll need to outfit your Pro-Flo 4 system with. First, the standard 1Bar MAP sensor that's included in all Pro-Flo 4 kits can NOT be used for forced induction. A 1Bar MAP sensor can only read up to atmospheric pressure and can not sense boost. The Pro-Flo 4 forced induction update supports two different MAP sensors for boost:

    #3542 GM Style 2Bar MAP Sensor
    3542 Map sensor.jpg
    This sensor as 3 pins and will take the place of the standard 1Bar MAP sensor that's included in all Pro-Flo 4 kits without any modifications. OEM part number is GM or ACDelco 12615136.

    #3547 2.5Bar TMAP Sensor & Adapter Harness
    3547 T Map sensor.jpg3547 Harness.jpg
    This sensor has 4 pins and combines a 2.5Bar MAP sensor and air temp sensor in one. This sensor is included on most Edelbrock EFI superchargers. This sensor can be added to an existing manifold with some minor custom machining. Since this sensor is both a MAP and air temp sensor, an adapter harness is included to make it plug-and-play with Pro-Flo 4 wiring harnesses. The sensor alone is a Bosch 0 261 230 042.

    The Pro-Flo 4 forced induction update support two fuel injector sizes: 60 lb and 80 lb.

    #3697 60 LB Short Body Fuel Injectors, Set of 8
    60 Injector.jpg

    #3522 80 LB Short Body Fuel Injectors, Set of 8
    80 injector.jpg
    Note that these are standard Siemens high impedance 60 & 80 lb short body injectors - they can be sourced from Edelbrock or from any other fuel injector supplier.

    And here is the power level that capable of being supported with these injectors:
    inj flow hp.jpg
    Note that most forced induction base cals are setup for either 43 psi of 58 psi of fuel pressure but there are two cals for big engines that are bumped up to 65 psi to stretch out those 80 lb injectors a bit to be able to make 1000+ hp.

    Lastly, you'll probably want to change from the standard push-in style air temp sensor to a thread-in sensor. Edelbrock offers a GM style 3/8" NPT air temp sensor, #3588 or you can use a GM 25036751 or equivalent. The air temp sensor should be installed immediately ahead of the throttle body.

    #3588 Threaded Air Temp Sensor

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    Wideopen's Avatar
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    Default

    That's about 750.00 added to the cost of the base kit

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