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Q on running dual bosch lines.
2 Attachment(s)
i have a quick question on running my lines..
should i run a -8 line from the back to rails or two individual -6n lines? running E85 dual bosch 25+psi 1000/2000 injectors also do you guys run check valves on each pump? Attachment 698336 Attachment 698337 |
fixed
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no check valves, personally i ran the dual -6, but some run the y back into a -8
the -6 is a 3/8 line, the -8 is 1/2, i remember there being a debate which could flow more, its not just surface area and tube size but it has to do with volumetric effiency, how much the line can flow isn’t just decided by size,, also in the second drawing use a -10 filter, just get the orb- adapters for -8 line in to -10 … you can never have enough flow… |
I run 3. -6 lines. One from each pump and the last as a return. Has worked fine for many years. However if I was doing it again I would just run one line up and one back. I had run one line years back to get rid of the stock filter so when I went dual pumps it was easier to just add another.
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I have mine setup like picture number 2 but with a Sumped stock gas tank 2 -8 going into 1 -10 back out to 2 -8. 1 -8 return. Havn't tested it yet.
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Originally Posted by just startn
(Post 11225857)
I have mine setup like picture number 2 but with a Sumped stock gas tank 2 -8 going into 1 -10 back out to 2 -8. 1 -8 return. Havn't tested it yet.
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Im running dual bosch with seperate -6 lines. And a single -6 return on my 20b. Works great. I went with seperate lines so i knew that both fuel rails would have equal pressure, i didnt want my secondaries robbing fuel pressure from my primaries.
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Originally Posted by sk8world
(Post 11226043)
Are you running an external pump?
Still need 2 filters before the pumps https://imageshack.us/a/img21/3043/img0421vg.jpg https://imageshack.us/a/img7/8829/img0431typ.jpg https://imageshack.us/a/img694/6520/img0441ux.jpg https://imageshack.us/a/img51/6190/img0442fz.jpg https://imageshack.us/a/img546/9286/img0445qn.jpg https://imageshack.us/a/img805/9952/img0446fn.jpg https://imageshack.us/a/img513/6093/restoration003.jpg https://imageshack.us/a/img138/4338/restoration004r.jpg |
WOW! ^That is just tits right there.^ Anyone have pictures of dual Bosch pumps on a Mazda hanger/sending unit?
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Do you guys put the filters before the pumps or after? I alwas thought filters should be before pumps
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Im installing before and after filters.
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What all classes can you run with a sump?
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I run two pumps, two 6AN lines to each rail. Then 8AN back to the tank.
Also a filter before the pumps. |
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