02GmHudack

I recently put on the 60# injectors for the Maggie and was wondering what some of you guys have done for your fuel pump?? At WOT the fuel pressure is about 57 and drops to about 25 or 30 and gets worse as rpms climb! Any suggestions on what to do???its irritating!!

tarinitup

iTrader: (11)

Intank is better than inline by a long shot. Start with that and I'm sure it will get better.

WJ MARK

iTrader: (7)

im running stock intank and a 255 inline, mine never drops below 55 and goes past 60 wot

dirt track racer 81

iTrader: (45)

Id get an intake. maybe some one can come up with a different and better theory but i dont like the idea of an 255 inline pump pulling thru a weaker(stock) pump. to me it seems like the your inline is having to work harder to pull fuel thru the stock pump which is not pumpin the volume the inline is pumping. just an opinion im sure some one can prove me wrong

KySilverado

iTrader: (7)

I know crap about fuel systems. I also have a stock intank and a 255 inline. Zero issues going on 4 yrs now.

Breeze

iTrader: (16)

Same here

WorkTruc

iTrader: (8)

Same here for 3 years

dirt track racer 81

iTrader: (45)

i had an inline untill my stock intank took a dump..once i get my truck back going im takin the inline off

Turbo 6.0

In tank has been working for me. Have you changed your fuel filter?

kbracing96

iTrader: (26)

Theory behind 2 pumps in-line, or in "series" is that with 2 pumps, they will split the pressure duties between the two pumps. So each pumps is only have to supply about 30psi. Since fuel pumps are flow rated at usually 43.5 psi, but they will flow more volume at less pressure. That is how you get more fuel past the stock pump, with an in-line pump, then just the stock pump could flow by its self. Make since?