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How Far Back Can Tank Be From Spray Bar?

Old 09-15-2023, 03:06 PM
Crazy Legs
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Join Date: Nov 2002
Location: Palm bay, FL
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Default How Far Back Can Tank Be From Spray Bar?

I am working on a Phoenix Model PH011 Corsair Kit and it's my opinion that the manufacture designed the Fuselage so that the Fuel Tank is way too high for a partially Inverted Engine (it's rotated counter-clockwise about 120 Degrees). The center of the Tank is about an inch above the height of the Carburetor's Spray Bar. I modified the Tank Floor (by lowering it) so that I could lower the Tank about an inch. However, this required me to also move the Tank rearward about an inch and a half because of an interference with the Muffler Clearance Tunnel that they designed right under the existing Fuel Tank Floor. The Tunnel is tapered downward toward the rear, so I will need to push the Tank rearward slightly since the new Fuel Tank Floor will be resting on the top of that tapered Muffler Clearance Tunnel. So in a reply, please let me know what the limitations are for how long the Fuel Feed Tubing can be that comes from the Fuel Tank and goes to the Carburetor. I read the instructions that come with the .55AX Engine, but they don't mention what that maximum distance is; they only point out that the Center of the Fuel Tank should be at the same level as the Center of the Carburetor.
Thank you for your help.
Michael D'Amico
3319 Sepia Street
West Melbourne, Florida 32904

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