Thinkin like this.

AN10 with 5/8 hose to a Russel filter.

AN10 with 5/8 hose to a A1000 Aeromotive pump.

AN10 with 1/2 hose to a A1000 Efi Regulator.

AN8 to my fuelrails. Or a An10 to 2*AN8 fittings on each rail.

An6 with 3/8 return line from regulator.

A 100psi Pressure regulator.

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Anything more. Something to redo? Will this pump handle a 700hp EFI engine. Can i run i @ Street?

Nice pump, very streetable, quiet and will easily handle 700 HP. Line sizes look good; the Aermotive pump likes a #10 inlet, and #8 (1/2") out is fine. I usually use a #8 return also but #6 should be fine.

Jody

You are using a fuel cell, right? I wouldn't like that with a stock tank.

-Bob Cunningham

Im Using a fuel cell Yes.

http://www.weldonracing.com/Images/fi-install.jpg

I will skip the filter after the pump? or is that stupid?

And route everything like this link above.

Personally, I would run exactly what you described. A quality fuel filter before the pump should be adequate... IMO.

Jody, though its doubtful that 1/8" will matter much on a return line, what problems could one expect if the return line was sized wrong? (I'm thinking about a fuel system upgrade myself).


-Matt

I think if the return line is too small. You cant get a low pressure reading and not so stable.

When i go to a procharger, i will add a new filter new pump and new line skip the y-block and route each pump to a separate rail.

This should add a bit of capacity...

You need to run a 60-100 micron filter before the pump and a 10 micron high pressure filter after the pump. The 100 micron is to protect the pump and the 10 is for the injectors. Putting a 10 before the pump can cause cavitation.

If you are going to run that big of lines a -8 return isn't bad. Keep in mind I see -8 feeds on 2000+ HP cars all the time. You are not dealing with 10 psi with a carb, you are using 45+ and this makes the size requirements less for the feed.

If you look at the smallest orfice on pumps rated for 800 HP you will see that they are less than 1/4".

Take apart a weldon pump and you will see for yourself.

The regulator has Only an AN6 outlet.

The Filter on the links above. Its a filter that i should have after my pump?

Where can i find AN10 "before" pump filters?

Originally posted by godsend:
The regulator has Only an AN6 outlet.

The Filter on the links above. Its a filter that i should have after my pump?

Where can i find AN10 "before" pump filters? I use a high-flow #6AN to #8 fitting out of the regulator. These have the correct #6 threads for the regulator, but have a larger inlet opening for less restriction than a standard #6 would have. In other words they're beveled inside; XRP and others sell them.

You can use the regular Aeromotive filter, but they offer a replacement stainless filter in 100 micron (I believe) that replaces the paper element that comes with them. The stainless unit goes before the pump, and the paper one after. Do NOT swap them!

Jody

Originally posted by Matt Leuck:
Personally, I would run exactly what you described. A quality fuel filter before the pump should be adequate... IMO.

Jody, though its doubtful that 1/8" will matter much on a return line, what problems could one expect if the return line was sized wrong? (I'm thinking about a fuel system upgrade myself).


-Matt Matt, you're correct, the #6 usually works. I always use the larger #8 return just to eliminate any issues. If the return is too small is screws with your fuel pressures, usually at idle and cruise, light load.

Jody

I used a carb an a singel AN6 with holley reg and Mallory140 pump before.

When i now built it giant. there is so much problems ;) And its getting pretty heavy on my wallet.

I want a complete system for a 700hp EFI engine rails to fuel cell.

The one i listed will be 600$ incl all fittings and hose. Thats like a great carb ;)

I didn't take the time to look at your links, but I've seen several times filters cause cavitation and pressure loss on peoples cars.

My advice is if you are getting the aeromotive pump and regulators, get their 10 and 100 micron filters also. They're not cheap but you get all that and you won't have to worry about any problems. I know they say to use -10 feeds, but -8 is MORE than enough for what you are doing. I'd run -8 and split to -6 into each rail, split back into both side of the regulator and run a -6 or -8 return.

I run a little -6 feed and return line and I have no issues feeding a 500RWHP BB with a Holley 255L/hour intank pump.

Andrew

Remember that your fuel pump is always running full flow (it has to stay cool). Therefore at low-flow conditions like idle, 99.5% of the fuel is being pumped right back to the tank, so if you are pumping a gazillion gallons/hour, your return line needs to be sized properly or you will have pressure problems.

-Bob Cunningham