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  1. #1

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    Most important gauge for 4tec engine..

    I am about to do some gauge placement on my CF hood, and was thinking:
    -What is the most important gauge info?
    1.Boost
    2.Oilpressure?/Oiltemp?

    Or what do you think?
    I am running SC setup


  2. #2
    Moderator beerdart's Avatar
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    1 AFR
    2 RPM
    3 Fuel Pressure
    4 EGT
    5 Engine Temp

  3. #3

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    I will place the oem gauge under the seat.. therefore the extra gauges..
    I was thinking
    1.RPM
    2.Boost
    3.Temp engine..
    4.AFR..Are there any waterproof gauges around that shows in digits? not only low and rich..
    I have the fuelpressure gauge on my rrfpr.


    After some searching I found a couple of waterproof AFR gauges, I also found that the sensor doesn´t like to be in the marine enviroment..!?



    Quote Originally Posted by beerdart View Post
    1 AFR
    2 RPM
    3 Fuel Pressure
    4 EGT
    5 Engine Temp

  4. #4
    Autosport's Avatar
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    Quote Originally Posted by ExciterGPR View Post
    I am about to do some gauge placement on my CF hood, and was thinking:
    -What is the most important gauge info?
    1.Boost
    2.Oilpressure?/Oiltemp?

    Or what do you think?
    I am running SC setup
    I would say water pressure (to measure pump tunnel pressure).

    **Edit** the above would be when the 4tech is in a GPR

  5. #5

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    what exacly is the purpose of knowing that pressure?

  6. #6
    Autosport's Avatar
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    Quote Originally Posted by ExciterGPR View Post
    what exactly is the purpose of knowing that pressure?
    In a GPR, (similar to an RXP-X) speeds in the high 70's and above the speed you are traveling pushes more water in the pump tunnel then the pump/prop can process, this causes high pump tunnel pressure and can cause the ski to unexpectedly buck.

    This is solved by using pressure relief methods like Jetworks valves, but at those speeds I would want to know the pump tunnel pressure so I can make sure I can take the appropriate action if its getting to high..

    PS: this is one reason some put RXP pumps on the GPR as it solves the problem

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