dyno BSFC input
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dyno BSFC input

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    Default dyno BSFC input

    Dyno session time is coming up for me. I want to run my fuel system, which is pretty much self contained. I am running a cam driven enderle pump to a mallory regulator, to carb. regulator is right off the pump, no hose in between. The pump is gravity fed from a 2.5 gal front mounted tank and the regulator returns to this tank. little Imco bullet. I will not be able to fit the fuel flow turbine between the pump and regulator. How critical is the BSFC # ? I want to run the system as packaged to see if it works well.This is a blow thru, twin turbo, 580 chev. Thanks,DEL51.

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    Highaboosta Unchained's Avatar
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    Your headers will be annealed after the dyno runs...........

    Put up a pic of what you built damnit......

    Twin Turbo 1800 HP V-Drive lake boat

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    gn7
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    Quote Originally Posted by DEL51 View Post
    Dyno session time is coming up for me. I want to run my fuel system, which is pretty much self contained. I am running a cam driven enderle pump to a mallory regulator, to carb. regulator is right off the pump, no hose in between. The pump is gravity fed from a 2.5 gal front mounted tank and the regulator returns to this tank. little Imco bullet. I will not be able to fit the fuel flow turbine between the pump and regulator. How critical is the BSFC # ? I want to run the system as packaged to see if it works well.This is a blow thru, twin turbo, 580 chev. Thanks,DEL51.
    Why couldn't you have the tubine in the line between the reg and the carb? If it was between the pump and the reg it would read all the fuel moved by the pump, including the return fuel. If its in the carb line it reads only fuel being supplied to the engine.
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    BSFC is how you will tune it. If you arent using an O2 sensor. You don't want it before the bypass.
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    Thanks for the input guys, Correctamundo GN. I was thinking the turbine would have to be between the discharge of the pump and the inlet of the regulator, being a bypass type that would be irrelevant. So, 2 outlets on my mallory regulator go straight to the carb. each is -6 very short runs, maybe 18 inches to the rear bowl. ?? Should I Use a 45 deg tee, combine the 2 and then split, with the fuel turbine in between? What size would work? I am using the 5 port Mallory with a -8 inlet and -10 return and no lines are longer than 2 ft. The outlet from the pump is -8. Runs good on the stand so far. Unchained, Pics and such to follow. My headers and setup arent the best for dragboat stuff. Good for Lakeboat crap.Very heavy.

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    gn7
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    I would call your dyno guy. You could always run his fuel system to tune it and get your BSFC then switch it to yours and make a pull to make sure its up to the task and works.
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    Quote Originally Posted by gn7 View Post
    I would call your dyno guy. You could always run his fuel system to tune it and get your BSFC then switch it to yours and make a pull to make sure its up to the task and works.
    X2 on Bob's suggestion. Use the known fuel system to run in, then test the unknown system.

  9. #8
    cfm
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    Make sure your dyno guy has 2 fuel flow meters.

    Hook one up (after regulator) going into Primary fuel bowl (A) and other going into Secondary fuel bowl (B). He will set A+B Fuel Flow on the dyno.

    Another good thing about this is you'll see how balanced each half of the carb is to each other.

    ==============================

    If you wanted to put one flow meter (A) after pump but before regulator, you can. Just install another fuel flow meter (B) on the return. Set dyno for A-B Fuel Flow.

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