How is yours set up:

stock lines or AN lines?
Those with AN lines, what size feed and return?
Are you using a Hobbe's switch to kick on the second pump or do you run them continuously?

Does anyone see a problem with running both pumps continuously if the lines and regulator can keep up? (heat?)

 

ttt - I'd like to know also and how much did everything cost?

-B

 

Well I don't know if you know the price of Lonnies pump. But a PNP setup from him is 600 bucks. I just sent my spare sending unit back to him to build me one w/ his hobb switch. Thought about the MSD activated unit but I'll see how his works being boost related 1st.

I want to switch to AN lines as well but I don't know the sizes to go w/. I'll have to look around and see what others used for sizes on the return line etc.

 

Yup I'm condiering Lonnie's set up but also debatin on wether or not to go with either larger hard lines and a few feet of stainless lines to feed my blown 383.

-B

 

Well I run steel lines from the bottom of the driver seat up to the quick disconnect lines. I think they're 6-an lines but can't remember. But I want to run steel lines all the way from the rails to the tank.

 

Fwiw, we've made nearly 1000rwhp with dual walbros and the stock fuel line/filter, and upgraded rails. (turbocharged)

We always turn on the second pump with a hobbs switch and relay also.

 

Stock lines, regulator, rails, filter.

Dual 255's, one triggered by an "oil pressure switch" installed directly in the intake manifold. It comes on at 3 - 5 psi.

Total cost: about $120

I tried running both and the fuel pressure drifted up quick.

Mike

 

What did you do for the wiring from the alternator to the pumps? and did you reuse the stock bucket?

-B

 

Well I'll just stick w/ modified rails and leave the rest alone then and see what happens.

 

I have a dedicated hot wire from the battery to the relay 2nd fuel pump. The stock wiring powers the other pump.

I removed the stock bucket.

 

Engineermike, Question, Is it true that with the twin pumps that you make mods to the inside of the tank that force you to drive on a half tank or more. Or doe's the pick up & everything the same. Can you run the tank dry?..Joe

 

There is a fuel strainer attached to the bottom of each pump and this stays at the same height as the stock one. I never run mine over 1/2 tank.

 

im running two walbro 255's no stock bucket, just clamped them to the stock bracket, like mike, stock wiring runs one, hobbs switch on the other (well not yet, but once i hook it up) -10an feed -6an return, also the majority is 5/8 hardline and 3/8 hard return line, from about the LCA chassis mount up to about 6 inches before they come through the stock fuel line location in the driver side fenderwell its all hardline, the rest is stainless.

-10 y-ed into -8 feed into the back of each rail, with an inline -10 fuel filter, and -6 return from each rail to my aeromotive fpr.

pics on my site in sig

total cost, pumps $200
hard line $40
stainless and fittings ~$100
fuel filter $40
hobbs switch was under $20, dont remember exact price

 

I'm just wondering if there would be a problem with running both pumps continuously if the regulator (not stock) and -6AN return line could flow enough... It would certainly simplify the wiring.

big power line, use stock power line to trigger a relay.

 

I bought my setup off of 1st and goal and he has it setup with twin intanks, no bucket, hobbs switch, 8an feed to BG filter, 8 up to a y- block where it splits into dual 8's into each rail. I think its 6an (it may be 8 an to the regulator...dont remember) to the regulator and 6an return to the tank.