mrstepheneades

Who has done this with no issues? Going on a pump gas 650 rwhp car. Thanks for any input...

1toofastlt1

iTrader: (4)

I run dual 255s on stock lines with out a hobbs switch. It drives fine

mrstepheneades

Thanks good to hear lol

Ryans99ls1

iTrader: (16)

my twin walbro's run all the time. I have a hobbs switch installed, wired and ready to go for long drives but i almost never switch over to it as i usually only bring the car out to run it.

703 CAMAROSS

Twin 340's are way over kill in my opinion at that level I'm sure you could save the money and go with 255's unless your planning on going for more power. Twin 340's are good for 1300rwhp on pump gas...

beavis

iTrader: (15)

I have twin 340's that run all the time with no problem.

02LS1ram

iTrader: (17)

I have twin 255's Wired together. My fuel pressure never drops below 60 psi. Now the was with my procharger, we will see what happens with this new turbo kit I'm about done with.

TX RED

iTrader: (19)

twin 340 on e85 running all the time

a4ls2goat

Twin walbros here. Seems like I cant get more than 60psi under WOT under boost though.

lemons12

iTrader: (71)

You guys are doing this with an other stock fuel system? Just the dual pumps and hotwire kits?

mrstepheneades

I plan for more power in the future. I'm a buy it one time kinda guy. That's why I'm also running fic1000cc injectors. Overkill but good for bigger and better things in the future. This is all on a s475 trans am. build thread link is in my sig which probably does not appear when I posed to here from mobile

mrstepheneades

Thanks everyone for the input

gpr

iTrader: (6)

How long have you ran it this way, and does it have any issues on hot days on a long drive?

Everyone in the fuel forum thinks running both pumps on all the time with a return fuel system will make it vapor lock and pumps fail. Because i have asked this exact same question. Setting mine up to use stock fuel line and evap as a return line with boost reference regulator.

mrstepheneades

not got it together yet.... installing all in next few days

gpr

iTrader: (6)

I guess i should have specified. For those who have ran both pumps all the time. How long have you ran it setup like this? Has it caused any issues?

I plan on running two 255l/h pumps all the time for e85. Was wondering if on long drives if i would have issues.

Ryans99ls1

iTrader: (16)

i sat in traffic for hours without an issue in 90+deg weather. been this way for a year

denmah

iTrader: (2)

im running twin 400's in my stock tank.

stock everything 2000 silverado

i just ran a larger wire to the pumps, and put 80s in the stock fuel rails

mrstepheneades

Thanks again for the input!!!!!!

WSLN 6

iTrader: (3)

Twins full time here as well. -8 feed, -6 return with Aeromotive regulator. Oh, if an aftermarket fuel filter gets plugged, they will spray fuel out the top of the gas tank......lol
As long as the vent is decent sized, you shouldn't have any issues.

1BADAZZSS

iTrader: (23)

Triple pumps -10 feed. Single pump wired like factory function, other 2 on single hobb. I dont see why running all pumps on all the time if the extra fuel is not needed in vacuum. Only making the pump/pumps lifespan shorter.