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Thread: EZ30 Oil Pressure

  1. #1
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    EZ30 Oil Pressure

    Anybody know what the oil pressure should be on an EZ30 engine? My VDO gauge and sensor come up with a steady climb to 100 which is the maximum for the gauge.

  2. #2
    Senior Member Hobby Racer's Avatar
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    Syracuse, NY
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    The Subaru Factory Service Manual list 102.7 psi as the pressure that the relief valve opens at. So your fine. My EZ36 runs at 88 psi and that's the pressure relief valve setting.
    MK3.1 Roadster completed 2011
    818R built with EZ36R H6 completed 2018
    818R rebuild with a JDM Honda K24A

  3. #3
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    Thanks Hobby! Boy, that's high! Do you know if the EZ30 has another water temperature location other than the factory position at the front left corner? The Megasquirt computer needs that one so I have to find another for the gauge. I was told I could install at T at that location to accommodate both sensors but I don't know how accurate that would be. They said there is a way that I could use an Output wire to go from the computer to the gauge. That's all I need to have to dig into.

  4. #4
    Senior Member Hobby Racer's Avatar
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    I do not know of a secondary port for coolant temperature.
    MK3.1 Roadster completed 2011
    818R built with EZ36R H6 completed 2018
    818R rebuild with a JDM Honda K24A

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