joel(PA)

anyone run dual intank walbro 255HP's? how did you wire it? does anyone have pics and how did you run your lines?

SC400TT

iTrader: (4)

Yes, I have dual Walbro 255's in the tank, mounted on a custom bracket to hold them both in place....Wiring done with relay, placed with total stealth, and safety....I ewill try to get you some pics soon...

Ryan

joel(PA)

cool... post up some pics!

SupraCoup3

I asked ryan woon about a triple pump system, and he said that a MKIV triple tank hanger will work with a little trimming... just FYI

Supra Dr

iTrader: (14)

Sorry I'm no help on this one. I gave up & went w/ a big external.
I'd like to see some pic's too of the line routing in/ out of the tank.
The hanger, pumps & wiring I'm sure is similar to the supra set up.

JoshFSM

I have done a few twin setups in SC's and have it down to science. Typically i run 2 -6 bulkheads on the tank, and y them off to a single -8 all the way to the rail. I mod the stock rail and use the stock feed as the return. Ill hit you up with some pics of this one we are doing at the shop right now. The wiring is simple, dual relay setup with a fusable link works well and is straight forward.

morris

iTrader: (2)

Somebody educate me, why do you need to run 2 or 3 pumps? Does a single not supply enough fuel to support the HP, at what HP do you need to add an additional pump beyond the single.

SC400TT

iTrader: (4)

You will see the pics guys, but Frank has them, and I will post them as soon as he sends them to me...

Ryan

Dew23

iTrader: (1)

If you have very large injectors 1 pump will not provide enough fuel.

95 Integra

Aeromotive makes pumps for upwards of 2000hp, however people like sticking with the cheap/easy walbros which max out around 600hp, so they need multiple pumps.

joel(PA)

not only that, but intank pumps are quieter, stay cooler becuase they are submerged in fuel, and they also dont require running a fuel cell.

motorheaddown

If you have a very large TURBO, 1 pump will not provide enough fuel. It's the increase in delivered air to the motor that requires more fuel not a bigger injector.

I've seen people out run one walbro fuel pump anywhere from 590whp (lexluther) to 690whp (me). So, it can happen. In my case, the second pump was programmed to come on at 14psi, but rescaling my fuel map from 3-bar MAP to 5-bar MAP goofed up the load breakpoint for the second pump activation. Fortunately, I caught it on the dyno before it caused a problem. You can read about it here: http://www.supraforums.com/forum/sho...d.php?t=380446

-scott