I was wondering if anyone had experience with running 3 pumps in the configuration shown below?
After building this setup I am a bit worried that 1 pump will starve the other 2 of fuel, any suggestions?

 

I like the triple walbro setup. I have been looking at other options, like using the magnafuel block, instead of the glenns piece. Curious to see how it works for you.

 

What's the p/n on the magnafuel blocks?

Thanks

 

http://store.summitracing.com/partdetail.asp?autofilter=1&part=MRF-MP-7600-03&N=700 115&autoview=sku

 

Enginerd....what wiring harass's did you use to wire the duals up???

Or how did ya???

 

Thanks.

Wow, for $50 each I'll make my own.

 

No harness. Just a 12V+ wire off each pump tee'd to a relay output. Each pump also has a ground wire to chassis.

 

I would think about drilling out the other end of the inlet block and tapping it for a second fuel inlet.

 

Yeah I about choked on that price.

 

Interesting configuration. We used a billet hanger and suspended triple 255's from it on a TT Viper we did last summer. They had the strainer/socks on them and everything...individually grounded and relays. Worked like a champ, running off of factory ECU fuel pump signal. We also converted the car to a return-style system, even using the factory fuel passages which are "cast-in" to the intake manifold, but that's a whole different story.

 

What advantage would this be compared to one big pump?

 

If all three pumps are submerged and all running the same voltage I dont see how either could starve the other of fuel. NOW if the tank got REALLY low on fuel maybe. Otherwise I dont think you'll have a starvation problem.

On the pickup side of the setup I think I would drill the other end for an additional pickup location just in case.

 

Did you see his pic? They share a common rail.

 

Yes but didnt realize they wouldnt be submerged. Just because they share the common rail doesnt mean they cant be. I know a few guys running twin submerged A1000's.

 

I fail to see how submerging the pump would make any difference. Having the pumps/rail submerged isn't going to increase fuel flow into the rail.

 

If there were multiple openings into the pickup rail fuel availability should increase.

 

Same idea as multiple feeds. I suppose your correct, but he wouldn't be posting this thread if that's what he was planning to do. Or run a rail at all for that matter.

 

I was planning on running a fuel cell with 2 -8's going to a y block, -12 from block to fuel filter, then -12 from the filter to the pumps. The magnafuel log is tapped on both sides so I can run 2 feeds to it, it just gets kinda messy. At this point i'm thinking I should have went with a Weldon pump but I want this to be a "streetable" setup.

 

Stick with the Walbros. BTW, I have a single -8 from my pumps to the fuel rails.

 

Granted I am no fluid dynamics engineer but I would say that is not going to work well. Maybe I am thinking overkill but I think it should be a minimum of a -12 feed. The other problem is there dead heading the fuel pressure at 90 degrees by the fuel block. A 3d y-block would be much more efficient