Working on a 96 f150 with the 4.9 with plans to add a turbo, hence the need for a better than stock fuel delivery. This truck has duel tanks so cost add up quickly. Everything I've been seeing says that all the fuel pumps are now mostly junk? Are there any good drop in pumps that put out 225 gph? Amazon is all over the place from $39.00 to $300.
Walbro was all the rage back when people were modifying RX-7's. No first hand experience with Walbro. I think I went with a Denso pump for a Supra Turbo? Heck, so long ago, I don't even know.
Also, maybe Holley? That's what I have feeding the Sniper EFI in the Chevy II.
Edit: Wait, you said 225 GALLONS per hour?
Edit edit: Where did you get that number?
https://help.summitracing.com/knowledgebase/article/SR-05245/en-us
Assuming you actually need 255lph, the Walbro is the easy button. A ton of F-body guys use them too, I have one in my Trans Am and have been happy with it. Perhaps a little loud but not like a big Magnaflow or something.
I like the DW pumps. Maybe a little more expensive but they have been awesome in my racecars and their customer service has been great!
In reply to 1988RedT2 :
I saw it on the internet? No just dumb thumbs 🙄
+1 for Deatschwerks. They also have some great fuel flow, fuel pressure and injector size calculators on their site.
Use the existing pumps to feed one of those external surge tanks that has its own high flow pump.
I did a lot of work on a vehicle that had twin fuel tanks and a Ford tank switching valve. The switching valve only switches the return lines, no need to switch the feeds.
What I discovered was that the switching valve could not flow enough for an Aeromotive 340lph pump and I was getting uncontrollably high fuel pressure. 90psi at idle.
So, if you run a surge tank, the return from your pump goes to the surge tank instead of through the switching valve. The switching valve only sees the overflow from what the in tank pump sends to the surge tank.
Using a Walbro 225 lph pump on my Dart. They have a pretty rugged reputation if you get them from a legit seller. Note that they're sometimes also called TI Automotive.
A real walbro 255 will make low 400whp boosted, likely its plenty. Use a good supplier (big parts house like summit or Jegs)
The other concern with the BIG drop in pumps like the 340s is that you MUST upgrade the wiring, 10 gauge from battery to pump to ground. They draw a lot of current, and with the voltage drops you will get with the stock wiring, it won't flow any more than a 255 at pressure. But you'll cook the connectors and stuff.
Current is directly linked to pressure. At the fuel pressures commonly seen under boost, a 340 (Aeromotive, Holley, they're all pretty much the same) will need 16-20 amps. When the stock wiring doesn't cut it and voltage at the pump tanks, the pump slows down and flow suffers.
I haven't seen this issue with a good old Walbro 255.
Now factor in two tanks, two pumps, and a maze of relays.
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