i was recently informed today that the main reason injector pumps go out is because when you have them turned up your standard mechanical lift pump cant keep up with the amount of fuel it needs and it starves the IP. any opinions on this? if i were to go to an electric pump any recomendations on pump PSI and GPH. any help is appreciated. thanks

 

I second this question also. But i know there is more than one variable about an ip breaking down

 

while i don't have numbers for you, i do have a few facts on the situation
1) the expected service life for an IP and injectors is 100k miles. failures around or after this point are called normal wear.
2) contaminated fuel can cause premature wear
3) i've read that the IP can suck enough fuel to get by without the lift pump IF the system is perfectly primed to start with.
4) clogged filters are more likely to produce fuel starvation than the design of the lift pump. air intrusion around the return lines is another big cause of fuel starvation. i don't know how these factors affect pump life.

but all that said, i've never heard anyone complain about the facet duralift pump, which is the most highly recomended e-pump around here. our member "typefour" sells them, and you can also find them from other sources if you look around.

 

yes the facet duralift is a good e-pump for these engines but it still is "not enough" to keep up with a maxed out pump and turbo. i have read where guys have the duralift pump and still see WOT fuel pressure(read from the filter head) drop to almost 0 psi. you would be better off going with an e-pump set-up that can keep up. if i was to do e-fuel then i would get a pump that can supply more than i need then get a regulator and regulate it to what is needed.

 

i don't recall ever reading that.the questions always seem to be if they're rated for too much.who's truck was running out of fuel with a duralift?
(he must be getting 1 mpg lmao.)
stock is only like 3-4 psi/the duralift is like up to 11 iirc.
maybe he was using it as a pusher instead of how its made,to pull? maybe he wasn't running just diesel fuel? etc.etc.

 

From what ive read thats a good pump... I wonder about his fuel filter if he was low on pressure. I hope this isnt true because im ordering a facet pump

 

Yes your exactly correct. There is just to many factors that could come into play here. This guy must not have had something right. Its not unheard of to get a weak pump right out of the box.

 

i appreciate all the help and i think i am going to look in to an e pump. while my ip isnt completely maxed out its about a flat away i am still concerned that i am starving it. is this something that i should worry about or no?is their a way to check? and this is non-turbo.

 

i "think" it was Chris(ididriver) over on obn. let me see if i can find it.

 

a good point made by RLDSL

 

I wouldnt evan try to see if you are starving it. Manuel pumps just are old style. An electric pump saves your batteries and starter. An elecric pump also could help starting if you had a leak or air in the lines. It also sppeds up filter changes

 

tru dat^^^^^^

 

the facet duralift pump has a few different models as far as psi, which one do u recommend?

 

I havent verified this.. but the stock lift pump should more than handle what a stock IP could use, even maxed out.

 

this is the only reason i put a duralift on my 88.
the original lift pump lasted 175,000 miles, the replacement pump is still on the truck, 320,000 miles later.
i have never had any problems running out or low on fuel to the pump even with the fuel turned all the way up on the second injector pump. i am now on my third injector pump, ready for a fourth.