Electric fuel pump basics
Electric fuel pump basics
02-15-2015, 04:03 PM
#1
In theory, I know it goes Feed Pump -> Filter -> Injection Pump -> Return -> Fuel pressure Regulator -> Return to Tank
Is a Holley Blue pump capable of 45psi? Can I just dial the pressure up with the regulator?
I ask because I'm seeing the Holley only pushes 14psi or so, I don't know if that's at the posted flow rate, or if it's simply not capable of higher pressure.
Does anyone have experience with these?
1984 300D 4-speed ~200,000 miles
7.5mm M-pump, GT3582 turbo, F-Tune Performance intake/exhaust manifolds, A/A intercooler, 315 nozzles, Enlarged prechambers, Bosch 044 feed pump, Custom lightweight flywheel with 240mm clutch, Lowered, 17" AMG rims - 300 hp OM617 project
1985 300D 280,000 miles RIP
2001 F350 7.3 DP tuner, 4"exhaust, S&B intake
led-panzer
02-15-2015, 04:03 PM #1I'm looking to replace the stock lift pump with an electric feed pump. I bought a knockoff Holley blue pump, purely looking at GPH flow. I also bought a fuel pressure regulator.
In theory, I know it goes Feed Pump -> Filter -> Injection Pump -> Return -> Fuel pressure Regulator -> Return to Tank
Is a Holley Blue pump capable of 45psi? Can I just dial the pressure up with the regulator?
I ask because I'm seeing the Holley only pushes 14psi or so, I don't know if that's at the posted flow rate, or if it's simply not capable of higher pressure.
Does anyone have experience with these?
1984 300D 4-speed ~200,000 miles
7.5mm M-pump, GT3582 turbo, F-Tune Performance intake/exhaust manifolds, A/A intercooler, 315 nozzles, Enlarged prechambers, Bosch 044 feed pump, Custom lightweight flywheel with 240mm clutch, Lowered, 17" AMG rims - 300 hp OM617 project
1985 300D 280,000 miles RIP
2001 F350 7.3 DP tuner, 4"exhaust, S&B intake
02-15-2015, 04:18 PM
#2
(02-15-2015, 04:03 PM)led-panzer I'm looking to replace the stock lift pump with an electric feed pump. I bought a knockoff Holley blue pump, purely looking at GPH flow. I also bought a fuel pressure regulator.
In theory, I know it goes Feed Pump -> Filter -> Injection Pump -> Return -> Fuel pressure Regulator -> Return to Tank
Is a Holley Blue pump capable of 45psi? Can I just dial the pressure up with the regulator?
I ask because I'm seeing the Holley only pushes 14psi or so, I don't know if that's at the posted flow rate, or if it's simply not capable of higher pressure.
Does anyone have experience with these?
This pump is for carburettor, not injector engines. It's not what you need, you can use any fuel pump from gasoline injection engine, the bigger the better.
(02-15-2015, 04:03 PM)led-panzer I'm looking to replace the stock lift pump with an electric feed pump. I bought a knockoff Holley blue pump, purely looking at GPH flow. I also bought a fuel pressure regulator.
In theory, I know it goes Feed Pump -> Filter -> Injection Pump -> Return -> Fuel pressure Regulator -> Return to Tank
Is a Holley Blue pump capable of 45psi? Can I just dial the pressure up with the regulator?
I ask because I'm seeing the Holley only pushes 14psi or so, I don't know if that's at the posted flow rate, or if it's simply not capable of higher pressure.
Does anyone have experience with these?
This pump is for carburettor, not injector engines. It's not what you need, you can use any fuel pump from gasoline injection engine, the bigger the better.
02-15-2015, 04:39 PM
#3
Bosch 044 then?
1984 300D 4-speed ~200,000 miles
7.5mm M-pump, GT3582 turbo, F-Tune Performance intake/exhaust manifolds, A/A intercooler, 315 nozzles, Enlarged prechambers, Bosch 044 feed pump, Custom lightweight flywheel with 240mm clutch, Lowered, 17" AMG rims - 300 hp OM617 project
1985 300D 280,000 miles RIP
2001 F350 7.3 DP tuner, 4"exhaust, S&B intake
led-panzer
02-15-2015, 04:39 PM #3Damn.
Bosch 044 then?
1984 300D 4-speed ~200,000 miles
7.5mm M-pump, GT3582 turbo, F-Tune Performance intake/exhaust manifolds, A/A intercooler, 315 nozzles, Enlarged prechambers, Bosch 044 feed pump, Custom lightweight flywheel with 240mm clutch, Lowered, 17" AMG rims - 300 hp OM617 project
1985 300D 280,000 miles RIP
2001 F350 7.3 DP tuner, 4"exhaust, S&B intake
02-15-2015, 05:00 PM
#4
(02-15-2015, 04:39 PM)led-panzer Damn.
Bosch 044 then?
I recommend
Bosch 0 580 054 004
dedicated Diesel fuel pump,
12Volt, 10Ampere, 200L/h @ 3,0bar
gasoline fuel pumps mostly don't live too long when beeing run with diesel.
Gruß
Volker
This post was last modified: 02-15-2015, 05:01 PM by Volker407.
02-15-2015, 05:45 PM
#6
(02-15-2015, 05:30 PM)Mark_M That pump is a $500 pump! I am thinking if your buying knock off holley pumps it's not for you.
Why do you want to to replace the stock lift pump anyway?
$500 is a bit over my budget for this for sure. I got a good deal on the knockoff Holley, thought I could use it.
This is partly preemptive, partly because I do not believe the stock lift pump is up to much over stock power. At some point I will upgrade to a 7.5mm pump, however I believe my 6mm pump could still benefit.
1984 300D 4-speed ~200,000 miles
7.5mm M-pump, GT3582 turbo, F-Tune Performance intake/exhaust manifolds, A/A intercooler, 315 nozzles, Enlarged prechambers, Bosch 044 feed pump, Custom lightweight flywheel with 240mm clutch, Lowered, 17" AMG rims - 300 hp OM617 project
1985 300D 280,000 miles RIP
2001 F350 7.3 DP tuner, 4"exhaust, S&B intake
led-panzer
02-15-2015, 05:45 PM #6(02-15-2015, 05:30 PM)Mark_M That pump is a $500 pump! I am thinking if your buying knock off holley pumps it's not for you.
Why do you want to to replace the stock lift pump anyway?
$500 is a bit over my budget for this for sure. I got a good deal on the knockoff Holley, thought I could use it.
This is partly preemptive, partly because I do not believe the stock lift pump is up to much over stock power. At some point I will upgrade to a 7.5mm pump, however I believe my 6mm pump could still benefit.
1984 300D 4-speed ~200,000 miles
7.5mm M-pump, GT3582 turbo, F-Tune Performance intake/exhaust manifolds, A/A intercooler, 315 nozzles, Enlarged prechambers, Bosch 044 feed pump, Custom lightweight flywheel with 240mm clutch, Lowered, 17" AMG rims - 300 hp OM617 project
1985 300D 280,000 miles RIP
2001 F350 7.3 DP tuner, 4"exhaust, S&B intake
02-15-2015, 06:07 PM
#7
Second problem is that stock fuel lines to tank are not meant to flow all that amount of fuel, so you have to connect 044 to circulate under the bonnet or change fuel lines to tank. I first connected 044 so it was flowing back to return line and one little hose between injectors popped off, the return line couldn't take all that fuel 044 was pumping. Then I connected it to circulate under the bonnet, pump itself is also under the bonnet, near IP.
There are schemes how to install 044
http://www.superturbodiesel.com/std/show...138&page=2
This post was last modified: 02-15-2015, 06:19 PM by erx.
044 Is much cheaper, there are also cheap 044 replicas. But it's quite big and with 6mm pump it's overkill for sure. I use 044 pump with 7,5mm IP, works fine. There are also many ways how to install this pump, return line from IP has restrictive banjo bolt with one way valve, if you want to put FPR after IP you have to replace that restrictive banjo bolt. But then without return line valve fuel can flow back to tank and air can get in when engine is not running.
Second problem is that stock fuel lines to tank are not meant to flow all that amount of fuel, so you have to connect 044 to circulate under the bonnet or change fuel lines to tank. I first connected 044 so it was flowing back to return line and one little hose between injectors popped off, the return line couldn't take all that fuel 044 was pumping. Then I connected it to circulate under the bonnet, pump itself is also under the bonnet, near IP.
There are schemes how to install 044
http://www.superturbodiesel.com/std/show...138&page=2
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