Crossover = Useless
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Club Member
Joined: Feb 2008
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From: Passaic County, NJ
Vic, my Uncle always said "When one doesn't think so good, one shouldn't think so much" ... LOL
So is there any reason why you could not have a quick disconnect on the right side like you have on the left, with a wye in the fuel line?
Was actually thinking about this the other day when I was thinking about building a custom tank.
So is there any reason why you could not have a quick disconnect on the right side like you have on the left, with a wye in the fuel line?
Was actually thinking about this the other day when I was thinking about building a custom tank.
Ultimate HDF Member
Joined: May 2008
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From: Ogden, UT
Now that I think about it, having 2 QD's would not solve the issue either, as it is a fuel pump, not gravity feed like a carb tank. Somewhere you have to have a crossover for an EFI setup with an internal pump.
Road Master
Joined: Jan 2010
Posts: 859
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From: Millsboro Delaware
I was thinking about the same thing a few months back. What is the purpose of the cross over tube on a one piece tank? The old Fat Bob tanks made perfect sense but not the new ones. I asked my brother the same question and after a little discussion we believe it is due to the tunnel in the tank. Not having a flat bottom you need a way to get the gas to flow from the lowest point in the tank to the other side (LeftSide) where the fuel line is . As the fuel level drops the cross over helps keep the tanks equal allowing most but not all of the gas to flow from the right to the left. As far as putting a quick disconnect on as some have stated that would be a good idea as long as it is cheap. I would not spend more than a few dollars on a quick disconnect as I would rather spend it on other mods instead, besides how often do you really pull the tank anyway? I do all of my own wrenching and in the last few years I have only needed to remove my tank once when I changed my Rocker Covers to Black ones on my old SB.
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Joined: Sep 2009
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From: The Internet (& Dyer, Indiana)
I think if you have a front tank lift installed you are correct, the crossover would not be needed. With a stock setup under a steady highway cruise when you get near the bottom of your fill the right side might not transfer the last half gallon or so without the transfer tube.
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Joined: Sep 2009
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From: The Internet (& Dyer, Indiana)
The quick disconnects can leak at times.
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If I removed my tank as often as I change my oil I would consider it a hassle. Even so, a couple of caps, a rag and a .50 cent crimp clamp does seem like a hassle to begin with. Takes about 5 minutes to drain the tank by powering up the FP at the fuse block FP fuse (not even necessary), clip the clamp, pinch the hose, rag, slide it off, cap the tank fitting, cap the hose, done. 
CB
The cross over equalizes the tank.
CB
The cross over equalizes the tank.
Last edited by NoLongerAmember; Dec 11, 2010 at 04:08 PM.
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