Fuel Cell Help

[gbodyera]

Ok. I finally understand and see why the factory tank without a sump cant be used with an electric pump. Im not getting adequate pressure from this thing.I placed a clear filter before the pump and I see sometimes fuel is barely coming through. Like you guys say, electric pumps are better pushers than pullers.

My next option is to buy this fuel cell from Summit with a 2in sump. SUM-290100
http://www.summitracing.com/parts/SUM-290100/?rtype=10

How would I run all of my lines to this thing? It has 2 outlets and 1 vent. Im using an electric pump and regulator with 2 outlets, 1inlet.

Can someone please explain what the vent is for and how to run my lines? Thanks in advance.

 

[shotgun]

First, there should be one fuel out (bigger line) one smaller return (smaller line) and then the vent.

If you are using dead-head Holley reg you won't use the return.

You should not use those glass filters, they are a major fire hazzard. Also the filter before the pump should be metal mesh as not to overwork the pump.

A finer paper type filter goes between the pump and regulator.

I posted on a couple posts here about fuel systems so do a search ( sorry I am to lazy to retype :lol: )

I do not like Holley grinders at all, prefer Mallory.

Another option is to use the stock tank. First remove the sock for the inlet, requires dropping the tank. Throw the Holley in the trash.

Get a mallory 140/reg combo. It is a return style and since you already have a return line, why not use it?

Mount the pump low and tight. Mount the return reg where the old stock fuel pump was up front. Hook all the line up that are right there for you.

Although a sumped tank is best, I have pleny of cars with healthy 455 done like I said that have no problems unless they go below 1/4 tank. This happens with your stock set-up also.

 

[shotgun]

Here, I dug up some old shots of a 70 LeMans I did. The engine is a 455 but you should get the idea. Alot of my customers want to look "stockish".

Here is the pump mounted clear of all moving parts and connected with fuel line rated for fuel injection. Notice the filter after the pump going to the stock fuel line.


Here is the reg mounted. i just used a longer bolt to secure the reg to the block off plate.


Another angle.

 

[gbodyera]

Im curious as to how it performs at low fuel level.

Do you guys with cells have any problems with fuel pressure when your level is below 1\4?

Do you experience an off-idle stumble when below 1/4?

I know these things have to have their down side in one way or another.

Anyone have any problem with a fuel cell in general?

 

[shotgun]

If properly designed a cell will let you run to the last drop, mine does.

Sorry no downside besides the intial set-up costs.

 

[gbodyera]

Thats good 2 know. I guess Ill just go ahead with my purchase tomorrow.

 

[beermonkey9417]

i had a problem with my car not running if i had 1/2 tank or less. it turned out to be rotted return lines.
i have a red holley electric fuel pump, it works good and hasnt failed me yet. i actually took it apart and cleaned it when i replaced my sending unit.

 

[krazykyle]

i just got my set up all button up today.fuel cell with sending unit,electric Holley blue fuel pump,filter regulator and i installed a relay kit with a Holley fuel pressure safety switch.i even added a auto meter fuel gauge with a isolator.seems to work real nice.i ran 1/2 aluminum fuel line i picked up off ebay 25 feet for around 30 bucks.so far so good since this is the first time with this kind of set up.