Intake/Bowl Pressure gauge
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Intake/Bowl Pressure gauge

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    Senior Member mcderns's Avatar
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    Default Intake/Bowl Pressure gauge

    Looking for a couple gauges to monitor intake and bowl pressure. Something with a recall on it so it can be seen after a pass. Anybody have any suggestions?
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    Breathing Diesel Shotgun19's Avatar
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    They have a gauge in McMaster Car book that works very nice and they are liquid filled with tt. Can get them bottom connection or on the back. Part # ( 3842K5 bottom ) (3842K7 Back ) and then just tell them what pressure range you want and what mount you want bottom or back.

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    Senior Member jetboatperformance's Avatar
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    Quote Originally Posted by mcderns View Post
    Looking for a couple gauges to monitor intake and bowl pressure. Something with a recall on it so it can be seen after a pass. Anybody have any suggestions?
    Heres the guages and panel Josh built recently to test our new E pump hardware ,I'm pretty sure thier Marshals liquid filled , could maybe work for you?Havent figured out the recall aspect yet , will check out the Mcmaster deal too ! Tom



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    mo balls than $cents$ IMPATIENT 1's Avatar
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    its gonna take a data logger to do want he's wanting. a recall oil pressure gauge will grab the highest pressure reading, which can happen on shutdown, instead of showing max intake pressure during the pass. datalogger will show the whole pass, tell the whole story.

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    149 BGJ-Willis Power 540 willis's Avatar
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    January 19, 2009
    Hello People,

    My experience with data recording equipment seems to tell a different story than the recall unit.
    The recall, single function gauges does its job real well, it record the highest psi in the run.

    With the data recorders, you can see what’s happening during the launch and throughout the run. The intake grate changes and nozzles increase/decrease in diameters, raising and lowering the shoe, ride plate adjustment. All of those will affect the psi highest reading and when it happens.
    The single recorder gauges will record the highest psi and that is not psi during full throttle, it’s when the surge occurs from slowing do when the throttle is first released.
    Last edited by willis; 01-19-2009 at 09:10 AM.

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    Resident Ford Nut Sleeper CP's Avatar
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    As stated the check valve will only record the highest number and that will be at shut down. Ours would usually pick up an 8-12 psi surge depending on how fast we got out of the throttle.

    I ended up mounting a 2 5/8" liquid filled blower gage in the dash (Autometer). The liquid filled gage removes the majority of the gauge bounce.

    At 2 5/8" the numbers are nice and easy to read.


    You'd be surprised of the number of people who have seen it and then looked around and said " Where's your blower?"


    Sleeper CP
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    Last edited by Sleeper CP; 01-19-2009 at 04:20 PM.

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    Senior Member mcderns's Avatar
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    Thanks for the info guys. I know a data logger is the best way to do it, but its not in the funds for this year. I wish!
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    mo balls than $cents$ IMPATIENT 1's Avatar
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    Quote Originally Posted by mcderns View Post
    Thanks for the info guys. I know a data logger is the best way to do it, but its not in the funds for this year. I wish!
    i feel ya. i'd love to have a datalogging system myself, the tuning help would be a great help in load tuning. the next jet i build , i'll be making payments on for awhile and i will be using a data logger on it.

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    Senior Member mcderns's Avatar
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    Ok....so now I am looking into just boost gauges with data logging capabilities. I will let you guys know what I find. On my car, I can data log through the boost controller, but the boost controller is expensive! I am hoping I can just find a gauge that does the same.
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    Quote Originally Posted by mcderns View Post
    Thanks for the info guys. I know a data logger is the best way to do it, but its not in the funds for this year. I wish!
    I agree that the logging systems are cool and best way to go if money is no object... But what about putting an electric cutoff valve between the check and the port? Depending how you configured it, you could either energize to open or energize to close. Whichever way, you could then have control over when you exposed the gage to the pressure port. This would allow you to get the peak readings before shutdown.

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    Senior Member cyclone's Avatar
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    Quote Originally Posted by Steve-Cat View Post
    I agree that the logging systems are cool and best way to go if money is no object... But what about putting an electric cutoff valve between the check and the port? Depending how you configured it, you could either energize to open or energize to close. Whichever way, you could then have control over when you exposed the gage to the pressure port. This would allow you to get the peak readings before shutdown.
    that still only works to a degree. during a pass your pump could be unloading or you could have too much inlet pressure and the only way to know would be to stare at the gauge while driving, which is dangerous. Unless the unload is violent enough for you to feel or hear it, the gauge is not going to work out real well. you could very easily be tuning for a condition that's not applicable to your boat based upon a reading you look at using the recall function.

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    Resident Ford Nut Sleeper CP's Avatar
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    Quote Originally Posted by Steve-Cat View Post
    I. Whichever way, you could then have control over when you exposed the gage to the pressure port. This would allow you to get the peak readings before shutdown.
    Even at 108 mph with my sunglassed on I can clearly see if the gauge is reading 32 or 36 psi.

    S CP

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