dville_gt

iTrader: (5)

Thinking about rather then using the speed controller with my Eliminator pump plumbing in a Walbro 255 to run the car then using the Eliminator as an aux pump when under boost (and possibly ditching the eliminator at some point for a 044 bosch as aux pump).

My question is how do you plumb it? I'd imagine you'd Y in after the elminator, but the problem I see with this is wouldn't the pressure go back through the aux pump when it is off and send the fuel back into the cell vs. pressurizing the rail?

1BADAZZSS

iTrader: (23)

If the secondary pump is equipped with a internal check ball then back flow could not happen.

TINKRD

iTrader: (27)

why not just add a fuel cooler? personally i've run my tank down to fumes street driving and i have the magnafuel 4303.

the 2nd pump is a good idea, but what if a relay goes bad, hobbs switch doesnt work, etc. and you end up going lean and pop.

just my 2cents

123quattro

Why circulate 1200hp of fuel when you only need ~25hp on average?

I Yed two Walbro 255s together and kicked the second one on at 2psi. 1 pump could due 525whp through a MT before it ran out of ***.

oange ss

iTrader: (50)

dont Walbro fuel pumps have internal check valves ? Hope so, I didnt use a check valve in my dual pump setup.

TINKRD

iTrader: (27)

i already stated above. my motto is keep things stupid simple. less areas for something to fail.

if OP wants to go this route that's fine, i was just asking about a fuel cooler.

dville_gt

iTrader: (5)

Which cooler are you using? I need one with -8 if I am going to plumb it on the return side.

Hank Peabody

iTrader: (2)

A single 044 might keep up with your setup if you dont go for any more power. It sure is nice having a single pump!

TINKRD

iTrader: (27)

not running a cooler. just a pre/post filter. -10 feed, -8 return. magnafuel 4303. i always drive around with 1/4 tank or less (sumped stock tank) b/c i never know when i'm going to put in C16. lol have driven down to fumes many times and never vapor locked.