I heard back in the day people used to run small electric "helper" pumps in front of the diaphragm fuel pumps on the gassers...

Can you do this with the stock lift pump? Have it switched to a hobbs switch for 20 psi of boost or something?

 

Not a good idea. If it fails then the lift pump has to try to pull fuel through it.

 

I have a couple ways to get around that downfall, is that the only issue? can the diaphragm pumps take pressure on the inlet side?

 

2001 pump..stock lift pump .... and a toggle switch??

 

Pressure feeding the lift pump won't hurt it any.

Any system that is regulated before the fuel filter will have severe pressure loss under load.

 

I keep trying to cheap out, but you keep bringing up points that make it impossible lol...

Did you do a draw straw or bulkhead fitting on your tank or anything?

Disturbed... I was looking at a 15psi carter. Pushes 150gph or something stupid like that. The local diesel shop uses one on all of their 24valve lift pump failures...

 

I have a draw straw connected to the Walbro. The piston pump still works through the stock pickup.

 

So 2 seperate lines? one for the stocker and one for the electric?... i was thinking about doing the same thing down the road...did you t them together before the filter or are you running a seperate filter setup for the electric? thats what i was thinking about doing with mine....then T-ing in right at the pump head with a bypass regulator either before or after the pump head.

 

The Walbro feeds a 1/4" tapped banjo bolt on the dirty side of the filter head. The bypass regulator is after the filter. So I have two independent feeds to the fuel filter. The bypass is set for 18 psi so when the Walbro is running the piston pump is not flowing any fuel. If the Walbro craps out the piston pump takes up the slack.

I wired the Walbro relay up to my valet switch so I run on the piston pump much of the time.

 

do you think there would be any advantage to running it through an aux filter setup? or does the stock filter clean/flow enough?

 

The stock filter is tiny, you would be much better off with a bigger filter remote mounted somewhere.

 

I thought about doing that too, totally ditching the whole fuel system on the side of the block.

How important is the fuel heater? Other than that, there doesnt seem to be anything important there... Am I gonna run into issues running at -20c at the coldest?

Wanna: does your draw straw have any sort of baffle around it? What is the advantage of a draw straw as opposed to a bulkhead fitting on the bottom of the tank?

 

My comments in red.

 

I don't want to hijack this thread at all but...
The heated fuel thing. Is this for all area's of the country? I have gotten rid of my stock fuel system and I'm running a remote mount filter with no heater. But I live in AZ so....?
Sorry for the Hijack

 

Thanks for the info wanna...
As far as no fuel heater in az, i dont think it would be too much of an issue... But im no expert on the matter...