Dual in-tank with dual 3/8 lines - Almost Done
Dual in-tank with dual 3/8 lines - Almost Done
I didnt get it all wired up but the plumbing works - so here it is. You might remember I was building the sending unit over winter - the original lines were removed and replaced with all 3/8" lines for the two pumps. The Walbro pumps go by -6 teflon lines into redundant flapper check valves and then Y into the Aeromotive filter. Then -8 up to the front and another Y into two -8 lines that feed the fuel rails. The rails empty back into the regulator by -6 lines, then its -8 back to the tank.
I still have to get a mount for the Filter cause i have a bunch of tie wraps holding it up now (so dont flame me for that
).
I also need to find a better way to plumb the FP gauge sender and I haven't done the boost referenced fitting yet - so there's some odds and ends left to do.






I still have to get a mount for the Filter cause i have a bunch of tie wraps holding it up now (so dont flame me for that
).I also need to find a better way to plumb the FP gauge sender and I haven't done the boost referenced fitting yet - so there's some odds and ends left to do.






Last edited by Kevin Blown 95 TA; May 11, 2008 at 01:20 PM.
Thanks - it seems to work well so far. I haven't retuned the car for the correct mixture yet - it was very lean before I built the fuel system due to not enough fuel, so I had the enrichment tables all rich trying to get more fuel into it at the track. So I havent really tested it too much - I just got into boost a couple times to watch the fuel pressure rise with boost like it should. I am going to rewire it with some solid state relays which I couldn't seem to find until I was practically done with it and I need to wire the one pump to a TPS switch I have, and also I need to get the two supply lines protected from the driver's side header a little better. I probably wont get back to working on it for a couple weeks. I was just glad when the thing didnt leak all over the place
ive got a boosta pump on mine and im gonna need to do a dual setup like yours. so would i need to get another boosta pump one for each pump or is the one wired to both pumps going to be enough. figured id ask you cause you do some great work
I was kind of wondering that myself, but you could probably go either way with it. I haven't tried a boost-a-pump and might not need it now, but I think it is a good way to go as long as your lines are sufficient for the flow. I would like to hear from anyone with two pumps and a boost-a-pump to see what they are doing.
I did the single Walbro_255 with a KenBell BAP. Was'nt enough for a 383 - D1 with 72# injectors. So I did a dual Walbro_255 similar, but, used -6an bulkhead fittings and made my own bulkhead from 0.90" sheet metal. I used -6an socketless hose from Aeroquip. I did wire my KenBell BAP to power both pumps, but, it could not handle the current load to drive both pumps. Spent 20amp fuse. Now I only have it on Pump #1. KenBell does make a BAP that will handle a two pump load. (97ss - 383 - D1-M6) B.
I did the single Walbro_255 with a KenBell BAP. Was'nt enough for a 383 - D1 with 72# injectors. So I did a dual Walbro_255 similar, but, used -6an bulkhead fittings and made my own bulkhead from 0.90" sheet metal. I used -6an socketless hose from Aeroquip. I did wire my KenBell BAP to power both pumps, but, it could not handle the current load to drive both pumps. Spent 20amp fuse. Now I only have it on Pump #1. KenBell does make a BAP that will handle a two pump load. (97ss - 383 - D1-M6) B.
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