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SVTPerformance's Chain of Restaurants
The Distillery
New e85 car voltage drop to 12v at 4500 rpm
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<blockquote data-quote="da28fan" data-source="post: 13023345" data-attributes="member: 127584"><p>Hi Jared. I have read about dropping fuel pressure some here on the boards and my tuner has said he's seen it before. Now I do like the fuel system, no question. To address my drop, my tank is not dented in, but can see how this would hurt it. I just put in your 465lph Walbros. On the height question, there is only one way these babies go in. Without modding anything, they are taller and the fuel hat will not seal against the top of tank due to height, even after pushing them all the way in. We had to actually trim some of the plastic grommet on the pumps that goes into the little rubber hose on the hat. So the pumps are in as far as they will go. So it is indeed possible the filter bags could be restricted some.</p><p></p><p>I've also been advised that cavitating could be occurring as the returning fuel could be "aimed" near the pickup (filter bags), so another person recommended changing where that fuel goes upon return. Don't recall exactly, but I'm guessing there is a way to connect some type of hose to the underside of the hat to cause the returning fuel to be returned outside of that main chamber/sump.</p><p></p><p>Tuner says I am not dropping current, even though I have stock alternator, but if I could confirm that was the issue, would not hesitate in upgrading it.</p><p></p><p>I would be interested in if you're hearing how any others have mounted the 465s since they are taller pumps. Thank you.</p></blockquote><p></p>
[QUOTE="da28fan, post: 13023345, member: 127584"] Hi Jared. I have read about dropping fuel pressure some here on the boards and my tuner has said he's seen it before. Now I do like the fuel system, no question. To address my drop, my tank is not dented in, but can see how this would hurt it. I just put in your 465lph Walbros. On the height question, there is only one way these babies go in. Without modding anything, they are taller and the fuel hat will not seal against the top of tank due to height, even after pushing them all the way in. We had to actually trim some of the plastic grommet on the pumps that goes into the little rubber hose on the hat. So the pumps are in as far as they will go. So it is indeed possible the filter bags could be restricted some. I've also been advised that cavitating could be occurring as the returning fuel could be "aimed" near the pickup (filter bags), so another person recommended changing where that fuel goes upon return. Don't recall exactly, but I'm guessing there is a way to connect some type of hose to the underside of the hat to cause the returning fuel to be returned outside of that main chamber/sump. Tuner says I am not dropping current, even though I have stock alternator, but if I could confirm that was the issue, would not hesitate in upgrading it. I would be interested in if you're hearing how any others have mounted the 465s since they are taller pumps. Thank you. [/QUOTE]
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SVTPerformance's Chain of Restaurants
The Distillery
New e85 car voltage drop to 12v at 4500 rpm
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