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challgren(at)mac.com
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 Posted: Mon Feb 02, 2009 12:08 pm Post subject: Fuel Pressure for Jabiru 3300 |
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I am installing a Jabiru 3300 on my 701 and am using the Grand Rapids
EIS/EFIS units. The latter has a Fuel Flow Option that requires at
least 5 inches of straight fuel line before entering the sensor and 2
inches after the sensor. There is about 15" between the firewall
where the fuel comes in and the fuel pump. While this is sufficient
distance to install a fuel pressure sensor and still meet the straight
line requirements, I am now wondering how important it is to have a
fuel pressure indication. On our last plane, a 601 HDS/3300 combo, it
seemed the fuel pressure indication was of little value.
Comments please.
Stan Challgren
701/Jab 3300/Grand Rapids
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n801bh(at)netzero.com
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| Posted: Mon Feb 02, 2009 3:07 pm Post subject: Fuel Pressure for Jabiru 3300 |
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Most fuel pressure sensors are mounted in the Tee fitting and that causes very little turbulance in the fuel line. I would not be concerned about its location. As for the fuel flow sensor they state you need straight lines into and out of the transducer, I am sure in a perfect world that would be optimum but space limitations usually dictate differently. I was not able to give my transducer thestraight in straight out plumbing and it works great. In 60 gallons I have it caliberated to show about 59.2 gallons used... Ps. I do have to change the cal numbers in the JPI 450 when I switch from auto fuel to 100 LL..
do not archive
Ben
IS/EFIS units. The latter has a Fuel Flow Option that requires at
least 5 inches of straight fuel line before entering the sensor and 2
inches after the sensor. There is about 15" between the firewall
where the fuel comes in and the fuel pump. While this is sufficient
distance to install a fuel pressure sensor and still meet the straight
line requirements, I am now wondering how important it is to have a
fuel pressure indication. On our last plane, a 601 HDS/3300 combo, it
seemed the fuel pressure indication was of little value.
Comments please.
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