RSK
Active member
Has anyone with dual injection pumps done dual factory lift pumps on a 6.4? It seems like it would probably supply quite a bit to each pump and be quite reliable.
so how would you buy 3 filters at one time?
you would buy 2 kits and have an extra or maybe ford sells them separately. The fuel filters aren't the issue, the reliability of the air dog or fass is. The factory lift pump on the 6.4's are reliable, and can fuel some power.
Way more work than what it's worth. Get a single fuelab low pressure pump that supplies way more fuel than dual factory lift pumps would anyway, and be done and not have to worry about the reliability issues with the other low pressure pumps.
Beauty of it is the 6.4 only require 8-10 psi so your pump issues are less prone to show up. Unlike the 6.0 which requires considerably more. Just get a nice lift pump and you'll be fine.
Stock lift pumps aren't that reliable. And many with mileage can't maintain a few pounds of pressure. Not to mention there are no codes or obvious warnings before they go... the filters are an issue and using an aftermarket set up allows for use of better filters
Beauty of it is the 6.4 only require 8-10 psi so your pump issues are less prone to show up. Unlike the 6.0 which requires considerably more. Just get a nice lift pump and you'll be fine.
Stock lift pumps aren't that reliable. And many with mileage can't maintain a few pounds of pressure. Not to mention there are no codes or obvious warnings before they go... the filters are an issue and using an aftermarket set up allows for use of better filters
I think at the time that's all that was available on a 6.7 . Plus I think I read that they require a bit more pressure. Don't quote me I don't venture into the 6.7 stuff too awful much. One thing I don't like is a stock set up doesn't have any means to tell you if you are low on feed pressure to the hpfp, which will potentially kill a hpfp. A gauge for the low pressure fuel system isn't a terrible idea to keep an eye on things.
Mine was set to 8-10psi it's entire, short life.
I tried dual stockers feeding my Dual K16 with 150's. Sump supplied both of them, I wouldnt do it again, too much screwing around. For what it takes just do a Fuel lab.