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Old 01-21-2018, 12:51 PM   #3
ls1nova71
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Join Date: Dec 2009
Location: Independence Mo
Posts: 4,119
Re: LS and stock Tank

Depending on how much you plan to drive the truck, the Wrangler tank may be the better way to go. Electric fuel pumps are designed to push fuel, not pull it, so having the pump in the tank is a far more reliable option. There will be people who say a frame mounted pump works fine for them, but then there will be a lot of people who say their frame mounted pump only lasted 5k miles or so. The problem it the pump isn't being cooled by being submerged in fuel like an in tank pump, then add to that its being asked to do a job it wasn't designed to do, suck the fuel up and out of the tank which is a good 2 1/2 feet before it gets to the pump. True, there is a syphoning effect once the fuel starts moving, but that still doesn't usually help in the long haul. I have a frame mounted Walbro255 on my truck, but I also have a sumped fuel tank, and the fuel comes out the bottom of the tank, directly into a pre-filter then into the pump. It's worked flawlessly for the last 33k miles, but it is a mess to try and clean the pre-filter which I have only done once, at about the 10k mile mark, and was shocked at the amount of trash that was in it, even after I had thoroughly cleaned the tank prior to putting any fuel in it. Just some food for thought....
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