Can you have to much fuel pump?

-

SGBARRACUDA

ROY
Legendary Member
Joined
Dec 7, 2006
Messages
22,009
Reaction score
10,663
Location
PLANT CITY FL.
So I'm going to run a fuel cell in the trunk of my 68 Barracuda fastback. Mainly because I want to run3" exhaust all the way out the back and not running a stock tank makes it easier. So here is my question, I have a new Holley 12-802-1 electric fuel pump, and I have a Barry Grant BG-400 pump. I plan on running a bypass setup. Is the BG-400 doable? Can you run to much pump?
 
I think as long as it has a good bypass regulator and return system it will be fine. Certainly a dead head system can have too much pump.
 
Triple R is on it. If you run a bypass, you can run just about any pump within reason because the regulator will bypass anything that exceeds the pressure of the regulator, like 5 psi, back to the tank. Keeps the fuel moving for sure.
 
Well I would never go out and buy it for this application, but I already own it. This is for my 80%street/20% strip 416 single 950HP Holley Barracuda. I may go with the Holley Blue pump and just sell the BG-400. I'm just exploring my options.
 
Just remember, those type Holley pumps are LOUD. I am sure you know that.
 
You can't have too much fuel pump, only not enough carb.....
 
No, but you can have too much pressure I'm Thinking. for example you wouldn't run a FI high pressure electric pump with a Carburetor.
 
You can with a bypass system. Pressure is created by the regulator not the pump.
 
The regulator is not a pressure source. Only the pump creates pressure. The regulator is simply an adjustable restriction.
 
So I'm going to run a fuel cell in the trunk of my 68 Barracuda fastback. Mainly because I want to run3" exhaust all the way out the back and not running a stock tank makes it easier. So here is my question, I have a new Holley 12-802-1 electric fuel pump, and I have a Barry Grant BG-400 pump. I plan on running a bypass setup. Is the BG-400 doable? Can you run to much pump?


NOPE, Just not enuff motor...............I run a Magnafuel 300 pump on my 9-second n/a BB 470 stroker and it`s awesome. Bypasses directly back into the cell and runs fairly cool while keeping rock solid pressure..............
 
My thought also. I was trying to play nice by asking.

Then how can Areomotive sell the same fuel setp for carbs and efi, and the only difference is the fuel regulator? Tanks Inc does the same thing with their intank setups.

The pump provides the volume, the regulator, the pressure ,by introducing a restriction into the system. This is for a BYPASS system. Do not confuse this with a DEADHEAD system.
 
Then how can Areomotive sell the same fuel setp for carbs and efi, and the only difference is the fuel regulator? Tanks Inc does the same thing with their intank setups.

The pump provides the volume, the regulator, the pressure ,by introducing a restriction into the system. This is for a BYPASS system. Do not confuse this with a DEADHEAD system.

The regulator does not provide any pressure whatsoever. It changes pressure. It provides nothing.

The difference in the example you give is the regulator because EFI needs more fuel pressure than a carburetor, so the carbureted system requires a regulator that can regulate to lower pressure. Most carbureted regulators will only go to around 10-20 PSI and that is even way to high for any carburetor. It is not high high the carbureted regulator can adjust, but how low. Since the EFI system needs much more pressure, it requires a different regulator.

Another way to look it is like the spillway of a dam. The regulator provides nothing. It allows it. The source of all pressure AND volume is the pump.
 
Then how can Areomotive sell the same fuel setp for carbs and efi, and the only difference is the fuel regulator? Tanks Inc does the same thing with their intank setups.

The pump provides the volume, the regulator, the pressure ,by introducing a restriction into the system. This is for a BYPASS system. Do not confuse this with a DEADHEAD system.

No the pump creates pressure and supplies volume. The regulator does just what it is named it regulates the amount of pressure a system see's. Even if it is a bypass system, it merrily controls the amount that is bypassed @ the adjusted pressure.
 
Yup. Maybe this will help. Throw the regulator in the ditch. You still have pressure from the pump. Throw the regulator in the ditch. You still have volume from the pump.

Saying the regulator supplies pressure and volume is like saying the kitchen faucet supplies pressure and volume. It does not. It simply regulates both volume and pressure.
 
Yup. Maybe this will help. Throw the regulator in the ditch. You still have pressure from the pump. Throw the regulator in the ditch. You still have volume from the pump.

Saying the regulator supplies pressure and volume is like saying the kitchen faucet supplies pressure and volume. It does not. It simply regulates both volume and pressure.

Very well put Danielson!
 
-
Back
Top