Need some advice on choosing an electic fuel pump....

[CadillacKid]

Okay, so this is one thing that I don't know whose advice to take, so I'm gonna ask the great and powerful Hamb. I'm Trying to figure out what electric fuel pump to get for my Model A coupe. Motor's a 390 Cadillac outta a '59 Caddy, .202 intake valves, full race Babe Erson cam (302 duration with 562 lift) and six stromberg carbs on top. I've been told that I shouldn't run any more than 6 psi or the needle valves will leak...so I'm gonna run a regulator on the system, but how many gallons per hour should I be looking for in a pump? I've heard of some of my buddies having problems with Holley pumps...anybody have any luck with Mallory pumps? Is a series 110 Mallory pump overkill? My gas tank has a provision for a return also....Oh yeah, and I'm running all six carbs....my theory has always been that if they're gonna be on there, they had better work! Any advice from you guys and gals on pumps would be most welcome and appreciated...Thanks-
The Cadillac Kid

[WZ JUNK]

High pressure racing electric fuel pumps do not work well on the street and they are very loud. Use a mid range pump with a regulator. Isolate the pump on a rubber mount to cut down on the noise. I will let others tell you what brand to buy.

[Ayers Garage]

I've run the Mallory 110 pump for years. It doesn't need a regulator, it only puts out a few psi. Mine is bolted straight to the frame with no insulators and it's very quiet. With the engine off, you hear a faint hum and that's it.

I had to rebuild it after like 5 years of daily driver use. My local starter shop had the brushes I needed on the shelf.

[mikeyboy]

Napa p74029 3.5 - 5.5 psi...nice and quiet, ya can use a rubber mount kit (610-1042) if ya want. This is a solenoid style pump..very reliable, designed to push fuel, so mount it in the rear of the car

[345window]

I asked a similar question and took FuelPumps advice. I bought the Carter (Jegs around $70), installed a filter ahead of it as well, motor is close to stock so I run about 3 psi. It's a little noisey but is working well.

[CruZer]

I ran the Holley street pump(blue ,I think) on my '40 with rochester 3-2's on a small block Chevy for 50K + miles.It never let me down.Of course,I had to run a regulator,too. Those carbs would leak at anything over 3psi,but that was plenty of pressure for the street. And as other have said mount it near the tank with a filter before it.

[Bruce Lancaster]

Go WAY less than 6 for Strombergs--I'd say below three would be wise. At six, the whole car would just be a moving fog bank of gasoline...briefly...

[Hot Rod To Hell]

As far as the "race pumps" go, I have a Barry Grant BG280, and it sounds like a god damn airplane!!! It's so F'in loud, I could never handle it if my motor didn't drown it out!!! http://www.jalopyjournal.com/ubbthreads/images/graemlins/crazy.gif

[CadillacKid]

Cool....yeah, I'll probably start it at 3 psi and see how she is...probably gonna go with a Mallory 110...anybody else got any stories to share?

[dehudso]

I have a carter in my hudson. It is noisy as hell, but when the engine is running the ehxaust drowns it out. I do have it solid mounted to the trunk floor though. It has not given me a problem in over 2 years of service, even without a relay on it.

http://www.jegs.com/photos/180P4070.jpg

[daddylama]

Have been using carters for quite a while... never had a problem with them, even after a TON of miles.
a bit quieter when mounted with rubber. They used to sell a quiet-kit for it... basically a box that went around it, with a little insulation in it. Never saw or heard one in person, though...

[porknbeaner]

OK I haven't read every last word in the post but I'm gonna add my .02 anyway.
I ran a Mallory Comp 70 for about 5 years, I can't imagine anything you would run on the street that would want more fuel than that. I never had a problem with it except that I had to blow the carbon dust out of the motor once. It is now the property of another HAMBer who I'm sure will get another 5 or 6 years out of it. Good pump low amp draw although a little noisey it did need to be rubber mounted in my opinion.
I've heard some bad reports on the newer Holley Blue pumps but I haven't tried one out to know for sure. I know that the older ones were good pumps.
I currently own and use an older Holley 110GPH. I bought it used because I had used them before with good luck and the price was right. So far so good.
All the afore mentioned pumps need a regulater with a return.From your post a return shouldn't be a problem.
I've had real good luck with Carter pumps, I recently put a Carter street pump on an Avanti and to date it has had no problems. It runs unregulated (auto shout off).
I wouldn't be afraid to run the 110 Mallory if I had it. Its overkill but it will still move fuel (more than you will ever use) and regulated down it won't cause you any problems.
A note from experience, put a roll over switch on it. @ 110 GPH it won't take long to pump your entire fuel tank out on your hot exhaust. And it probably wouldn't hurt to carry a fire extinguisher in the event of a ruptured fuel line for the same reason.
Too much info, probably.
Now just decide and go with it.
The PKnBner http://www.jalopyjournal.com/ubbthreads/images/graemlins/grin.gif

[fuel pump]

I still suggest the Carter P74070 (or the P7600HP for 400+HP engines) with a Mallory 650-4207 regulator. Still the best stuff.

[AHotRod]

I only use the CARTER Rotary-Vane pumps, have been since 1970.
Their reliable.
They come with mounting-in-rubber for quiet operation.
The motors are emersed in fuel which keeps the pump Cool.
They have a 'intake' strainer to stop 'crap-from-the-tank'.
There are no 'shaft-seals' that can deteriorate and leak.
They come in 6-Volt and 12 Volt units, variations of PSI's.

I suggest the Carter #P4070 pump and Carter #404-501HP Fuel Regulator so you can set the PSI @ 3 lbs for your carbs.
If you want 100 Gallons Per Hour, get the Carter P4600HP pump.

AHotRod

[345window]

Thanks again to Fuel Pump for the Carter advice he gave me a few months ago. My paranoia forces me to keep a purolater spare made up in the tool box....but the unit is cheap (Jegs), works great to date, and the bracket they send you with the rubber bushings gives you a couple of install options.
Thanks again.....I'll put on 34' Truck I'm doing.

[CadillacKid]

Well, I guess i should have asked this first off....how many gallons per hour do I need to run my set up? You're talking about 970 cfm total between all six carbs....or somewhere close to that....

[Bruce Lancaster]

Which types of electric pump will function in a draw-through setup?

[CadillacKid]

BTTT

[wingnutz]

Whatever you use make sure your fuel lines are 3/8"+ and the pump has a high volume capabilities (Not high pressure).

Run the pump close to the fuel source and Always carry a spare fuel pump prefferably the same make and model!

I've replaced most of the models mentioned above..., and learned to carry a spare. http://www.jalopyjournal.com/ubbthreads/images/graemlins/tongue.gif

Mark

[CadillacKid]

Cool...thanks Mark, I think that I am gonna run a Mallory 110...good advice on carrying an exact spare too...my fuel line will be 3/8 or bigger to the fuel block, but then the last foot or so to each carb is gonna be 5/16 .....that's what i had for Stromberg fittings, so I hope it won't limit me too much...it's something that I could probably always change in the future too....