Canister filter and electric pump

[Dynomutt]

Do you put the filter between tank and pump or pump and carb?

Simple question and what I would think is between tank and pump. What I don't understand is the pump is rated at 110 GPH but the filter is rated at 90 GPH. If the filter goes between tank and pump will it cause problems being a lessor GPH rate? Will the pump draw faster than the filter can deliver?

All will be rail mounted nearest the the tank if it matters.

Never done this type of setup before so pardon the ignorance.

[POPO1984]

Good question ill give you a Bump

[shortbed70]

Filter before pump and as close to fuel sorce as possible because electric pumps are designed to push where as mechanical pumps pull. So mount filter within 12" of fuel outlet and pump there after. Plus electric pumps are noisy so youll want it twards the back anyway.

[Wild83C10]

The pump instructions should tell you what you need. With an electric pump there is usually a pre and post filter. What pump is it?

Are you using this with a stock tank? If so what tank is it? Most electric pumps like to be gravity fed.

[Dynomutt]

Originally Posted by Wild83C10

The pump instructions should tell you what you need. With an electric pump there is usually a pre and post filter. What pump is it?

Are you using this with a stock tank? If so what tank is it? Most electric pumps like to be gravity fed.

Don't have the pump or filter yet. I'm trying to determine what I need before I buy. I spec'd the Holley blue (and many others have the same specs) and all of the canister units I've seen are the same specs except the filter (s).

The tank is custom built but it's not gravity fed. The bung is on the top of the tank with a pickup tube.

I understand the concept and why, but that doesn't explain the GPH differences. Seems to me that both units should have the same GPH, or, the unit farthest from the tank should have the lower GPH. Maybe I'm missing something in the numbers or the equipment I'm looking at.

[Schralper]

most pumps list free flow gph. no filter restriction.
do not run nylon sock filter on in-tank pump pickup.
the pump needs to be gravity fed, as in siphon.
as long as the pump is mounted as low or lower than bottom of tank,
you're good to go.
a blue is NOISY, go w/ an in-tank pump is possible.
which is why i have an Aeromotive fuel cell/ pump is in the works for the 68
a lot quieter. also run a bypass style reg. it's better.
you need a 100 micron mesh filter b4 pump, but after?
well if you have FI sure, but I've never seen the point in post-pump filter.
you shouldn't be gettin crap in the line between pump and carb.
i've not had a problem w/o a post pump filter in my burban.

[Wild83C10]

The blue pump is noisy. I would have to recommend an Aeromotive pump and putting it in the tank (if possible like Schralper suggested) would be a better idea since you have the pickup on top of the tank. Aeromotive has the 11106 which is submersible, but $300, awesome pump though worked great for me. They also have the 11219 which is an internally regulated (7 psi) pump for carb'd engines so you don't have to worry about a regulator or a return line.

[Dynomutt]

Thanks for the input. I don't really have the option to put the pump in the tank. It's just a pickup tube with a 3/8" bung on the top of the tank.

I'm still doing some more research to figure out what I need to do for my application. It's not a race truck by any means but I do want to do what's best for function and perfomance. I'll be right around 500hp (carb'd) so I may just go mechanical.

[cableguy0]

The other thing to remember is the blue pump flows 110gph free flow at 14psi. You cant run at 14psi with a carb engine anyhow. The regulator is going to reduce flow more than any filter will by cutting pressure in half. A mechanical pump can feed the engine just fine. If you want an electric pump you can go that way but an edelbrock or holley mechanical pump will take care of your needs as well.

[team39763]

I'd recommend a Mallory 110 pump over the Holley Blue. It's quiet when used with a return style regulator and you can adjust the flow of the pump(at the pump)...not sure if you can with the Holley. Sometimes I couldn't even tell it was on. I used a 100micron filter before the pump and one of those cheap chrome filters between the regulator and carb. I used one of those Summit brand inline filters(SUM-230116-B).

[Schralper]

Originally Posted by Dynomutt

I'll be right around 500hp (carb'd) so I may just go mechanical.

you'll need to go w/ a hi psi mech pump, like edelbrock victor and still run a psi reg., ideally a bypass system.
check this
http://www.centuryperformance.com/fu...e-spg-140.html

[Dynomutt]

Thanks for the link Schralper. Some pretty good info in there.