[hillerjeffa]

Can you point me to some good resources to trade out a mechanical fuel pump for electrical?
283, bored out 0.60, Carter 4-barrel WCFB (4-5.5psi). Nearly a stock car for fuel system and electrical system.

I have dug through tri-five and other internet resources and have not been able to find enough details for an amateur knuckle buster. Mechanical pumps seem to have lost their reliability and rummer has it that those who have swapped are glad they did.

Suggested out of tank pump, mounting locations, electrical supply source, safety mechanisms, etc...

Thanks.

 

[lamburgey]

Jeff,
I went down this road a few years ago and went back to mechanical. Electric was noisy and you have to mount it so it doesn’t starve for fuel. Nothing wrong with mechanical in my opinion.
Larry

 

[zookpr]

Everything stated in the above post is spot on. My vintage cars have a mechanical pump except I have an electric pump in my '55. I only have it because it has a 454 and interference issues. I would have to modify the cross member to clear a mechanical pump. I would love to have a mechanical pump on the '55.

Electric pump considerations - Running electricity, on switch, safety shut off, vibration isolation for the electric pump (to reduce noise), mounting and all new lines and additional filter between tank and pump. I have a Mallory pump after a failed Holley pump. Electric pumps are quit sensitive to particles in the fuel due to tight internal clearances (may not apply to all type of electrical pumps). The other consideration is the $$$.

 

[hillerjeffa]

Jeff,
I went down this road a few years ago and went back to mechanical. Electric was noisy and you have to mount it so it doesn’t starve for fuel. Nothing wrong with mechanical in my opinion.
Larry

Did you find a mechanical that seemed to have some quality? I still need to trace out the line and make sure I don't have an air leak in the supply line. 2nd mechanical pump in 3 months and I don't think it was doing its job in those 3 months. The pivot pin fell out of the pump that got me to BG and back.
Thanks!
Jeff

 

[Shadetree55]

I just had a brand new carter out of the box fail to work at all. I went with a precision fuel pump for a 74 bel air with a 350. so far so good

 

[lamburgey]

Did you find a mechanical that seemed to have some quality? I still need to trace out the line and make sure I don't have an air leak in the supply line. 2nd mechanical pump in 3 months and I don't think it was doing its job in those 3 months. The pivot pin fell out of the pump that got me to BG and back.
Thanks!
Jeff

Jeff,
I bought a Holley 12-834( I think). Works fine , no problem. Good luck. I really don’t think you want an electric pump on your car.
Larry

 

[mr55/56]

Everything stated in the above post is spot on. My vintage cars have a mechanical pump except I have an electric pump in my '55. I only have it because it has a 454 and interference issues. I would have to modify the cross member to clear a mechanical pump. I would love to have a mechanical pump on the '55.

Electric pump considerations - Running electricity, on switch, safety shut off, vibration isolation for the electric pump (to reduce noise), mounting and all new lines and additional filter between tank and pump. I have a Mallory pump after a failed Holley pump. Electric pumps are quit sensitive to particles in the fuel due to tight internal clearances (may not apply to all type of electrical pumps). The other consideration is the $$$.

I have a large HP mech pump on my 396 with no clearance issues. I run CCI 2.25 forward mounts. I have a rear sump outlet in the stock tank and 1/2 inch fuel line.

 

[Pops @ Tri-5.com]

I have a large HP mech pump on my 396 with no clearance issues. I run CCI 2.25 forward mounts. I have a rear sump outlet in the stock tank and 1/2 inch fuel line.

Got a manufacturer and part number?

 

[mr55/56]

I started with an early Edelbrock Performer they changed design. It died and now I have a knock off from Speedmaster. Mechanical pump with clockable base.

 

[tekctrl]

Can you point me to some good resources to trade out a mechanical fuel pump for electrical?
283, bored out 0.60, Carter 4-barrel WCFB (4-5.5psi). Nearly a stock car for fuel system and electrical system.

I have dug through tri-five and other internet resources and have not been able to find enough details for an amateur knuckle buster. Mechanical pumps seem to have lost their reliability and rummer has it that those who have swapped are glad they did.

Suggested out of tank pump, mounting locations, electrical supply source, safety mechanisms, etc...

Thanks.

I recently changed my '57 from mech pump to electric. Even designed & built a shutoff using a F**d impact sensor that cuts power to the pump. Have heard that electric pumps can be noisy if they're mounted outside of the tank. Mine is inside the tank and is extremely quiet. The thread for what I did and how I did it is on this site.

 

[zookpr]

I have a large HP mech pump on my 396 with no clearance issues. I run CCI 2.25 forward mounts. I have a rear sump outlet in the stock tank and 1/2 inch fuel line.

My engine is in the "stock" location originally set up with a scatter shield and MG adapters to use original side mounts. Changed over to a crossmember at the rear, on my third one, last two home fabricated.

My pump issue was with the factory front crossmember when I put the 454 in decades ago. I changed some things related to switching from long to short water pump and the many associated parts. Maybe I'll have to revisit looking for a mechanical pump later this year when I get back to the car.

 

[hutchenc]

Can you point me to some good resources to trade out a mechanical fuel pump for electrical?
283, bored out 0.60, Carter 4-barrel WCFB (4-5.5psi). Nearly a stock car for fuel system and electrical system.

I have dug through tri-five and other internet resources and have not been able to find enough details for an amateur knuckle buster. Mechanical pumps seem to have lost their reliability and rummer has it that those who have swapped are glad they did.

Suggested out of tank pump, mounting locations, electrical supply source, safety mechanisms, etc...

Thanks.

I've got an old Edelbrock mechanical (clockable) pump sitting on the shelf I'd send you for the cost of shipping. Probably would fit in a $12 USPS flat rate box. It's probably 20 years old but I'm running EFI now so don't have any use for it. I never had any trouble with it...it might have 1000 miles on it.

PM me if you want it.

 

[55 Tony]

I still need to trace out the line and make sure I don't have an air leak in the supply line.
Jeff

EXACTLY what kind of symptoms are you experiencing that you want to replace the current pump.
If the motor gets starved for fuel, you may have a problem with the gasoline boiling/vapor locking. If that is the case, an electric would be your best bet.
I went through everything possible to cure mine from boiling the gas and some helped a little, but the problem was never fixed until I installed an electric pump. I have a Carter black (don't recall the model) mounted on the frame near the gas tank. I don't know if I would have still needed it, but an earlier attempt to fix it was installing a return line to the tank and is still in place.

 

[hotrodg726]

Jeff,
I bought a Holley 12-834( I think). Works fine , no problem. Good luck. I really don’t think you want an electric pump on your car.
Larry

its all about what electric pump you pick. some are noisy some are super quiet. I put an electric in every thing I own, and most customers too.

 

[Pops @ Tri-5.com]

its all about what electric pump you pick. some are noisy some are super quiet. I put an electric in every thing I own, and most customers too.

Which one are you using John?

 

[hotrodg726]

Which one are you using John?

both the race cars are noisy but need high volume so magnafuel.
the 56 and elcamino have walbro in tank.
my 55 will likely have a mallory 22256 or similiar depends on whats on my scrap heap

 

[tekctrl]

its all about what electric pump you pick. some are noisy some are super quiet. I put an electric in every thing I own, and most customers too.

I put a Holley pump inside the tank and it's so quiet that you really have to listen to hear whether it's working. I understand that external pumps can be quite a bit noisier, no to mention subject to overheating since they're not cooled by the gas in the tank.

 

[55 Tony]

I put a Holley pump inside the tank and it's so quiet that you really have to listen to hear whether it's working. I understand that external pumps can be quite a bit noisier, no to mention subject to overheating since they're not cooled by the gas in the tank.

If the day comes when I need a new tank, I'll put an internal pump in tank model in it. It will have to be one that gives enough flow so the fuel return line can still be used. The external one I have is liquid cooled. The fuel passes right by the brushes and armature. It doesn't explode because there isn't enough air.