ProFlow4

[geofocusinc]

I am installing a proflow4 into my 76 with a new roller block.
Has anyone used the proflow4 fuel system(its not a sump) or are you running a generic system?
I can source the parts for about half the cost of the proflow, but I don't know if that's the best idea.
I was thinking a EVIL ENERGY pressure gauge with a bosch inline pump.
What model # bosch are you running?
Thanks

 

[DirtDonk]

A few members are running the ProFlow at this point. Not sure what the answer to your questions are though yet. When you say you can source the parts, are you talking about a basic port-injection setup of your own making using aftermarket parts? Or putting together a factory setup?
Assuming aftermarket, but which parts would you be using, and what are your fuel pressure needs with those parts?

good luck.

Paul

 

[Timmy390]

I assume the ProFlow has a built in regulator so any internal/external pump will work.

You shouldn't need a gauge unless you just want one.

I like the Airtex E2000 Electric Fuel Pump (I run one on my factory ford EFI). Mine is quiet and has worked fine for 3.5 years now. Ford used the E2000 for years so local parts stores should have them......

Tim

 

[fishinman78]

I have done 4 of the proflow4 systems so far and doing a 5th this winter. All using in tank pumps.

The Proflow4 doesn't have a built in regulator you will need an adjustable fuel pressure regulator with a regulated return.

There are pretty specific instructions in the kit on setting up your fuel system and I suggest you follow them to a T or you will experience problems. You don't need the Edelbrock sump system to make it work. Any fuel pump with a minimum of 215 liter/hour will work

You should also install a mechanical gauge on the fuel pressure regulator to dial in your fuel pressure. There are two fuel maps one for 43psi fuel pressure and one for 58 psi fuel pressure. You will need to be close to one of them depending on the map you use.

There is a digital fuel pressure gauge within the proflow4 system, but on 2 of the 4 units we have found that the sensor was bad and not accurate

 

[geofocusinc]

A few members are running the ProFlow at this point. Not sure what the answer to your questions are though yet. When you say you can source the parts, are you talking about a basic port-injection setup of your own making using aftermarket parts? Or putting together a factory setup?
Assuming aftermarket, but which parts would you be using, and what are your fuel pressure needs with those parts?

good luck.

Paul

Hi Paul. I already have the proflow4 in hand.
I am only thinking about aftermarket parts for the fuel delivery system.
Edelbrock has a pump/filter/regulator and lines kit, but its expensive here.
Seems like making one up should not be to hard.

 

[geofocusinc]

I assume the ProFlow has a built in regulator so any internal/external pump will work.

You shouldn't need a gauge unless you just want one.

I like the Airtex E2000 Electric Fuel Pump (I run one on my factory ford EFI). Mine is quiet and has worked fine for 3.5 years now. Ford used the E2000 for years so local parts stores should have them......

Tim

Thanks Tim. Quiet is good and the E2000 is available locally.

 

[Yeller]

I'm all about simple. I'd use a C5 corvette filter regulator. gives you 58psi, fuel filter all in one and keeps the return line short and away from engine heat so your not heating the fuel in the tank. Only one fuel line to run all the way to the engine that way. I've run them with inline and intank pumps. 1 disclaimer I have not used this on Pro 4 injection but see no reason it won't work. I've supported 600 naturally aspirated HP with them too.

https://www.amazon.com/Glenns-Auto-Performance-Corvette-Regulator/dp/B07P922HQB/ref=sr_1_9?dchild=1&keywords=corvette+fuel+filter+regulator&qid=1610055910&sr=8-9

 

[geofocusinc]

I have done 4 of the proflow4 systems so far and doing a 5th this winter. All using in tank pumps.

The Proflow4 doesn't have a built in regulator you will need an adjustable fuel pressure regulator with a regulated return.

There are pretty specific instructions in the kit on setting up your fuel system and I suggest you follow them to a T or you will experience problems. You don't need the Edelbrock sump system to make it work. Any fuel pump with a minimum of 215 liter/hour will work

You should also install a mechanical gauge on the fuel pressure regulator to dial in your fuel pressure. There are two fuel maps one for 43psi fuel pressure and one for 58 psi fuel pressure. You will need to be close to one of them depending on the map you use.

There is a digital fuel pressure gauge within the proflow4 system, but on 2 of the 4 units we have found that the sensor was bad and not accurate

Hi Fishinman. First off please excuse my ignorance and poor terminology on the subject. I have read the manual over a couple of times, but electrical and EFI don't always make sense to me.
I am planning to go with an external pump first. If I upgrade to a bigger tank, I will go with to the internal.

Looks like the map is created by the software based on your chosen engine configuration, in my case a stock 351w roller. Let say the map 43psi is created, is that what the regulator should be putting out or is the differential pressure by the time it has traveled the rails and a different/higher psi should be coming out of the regulator?
By 'regulated return' you just mean a return back into the tank off the regulator?

I will make sure I have a manual gauge on hand for testing.
Thanks

 

[fishinman78]

Hi Fishinman. First off please excuse my ignorance and poor terminology on the subject. I have read the manual over a couple of times, but electrical and EFI don't always make sense to me.
I am planning to go with an external pump first. If I upgrade to a bigger tank, I will go with to the internal.

Looks like the map is created by the software based on your chosen engine configuration, in my case a stock 351w roller. Let say the map 43psi is created, is that what the regulator should be putting out or is the differential pressure by the time it has traveled the rails and a different/higher psi should be coming out of the regulator?
By 'regulated return' you just mean a return back into the tank off the regulator?

I will make sure I have a manual gauge on hand for testing.
Thanks

In your example If you plan to use the 43psi map then you need your adjustable regulator set withing the range of 43-45psi, so that will be pressure at the regulator.

Correct on the regulated return. Just needs a port on the bottom to bleed excess fuel back to the tank.

 

[SDBMtber]

For ease and cleanliness of install I went with one of these.

Edelbrock 17400 EFI Fuel Pressure Regulator Rail Mounted 67 GPH/255 LPH 43 Factory Preset PSI -6AN Inlet/Outlet Port For Pro-Flo 3 Systems EFI Fuel Pressure Regulator https://www.amazon.com/dp/B01MRZ6D9T/ref=cm_sw_r_cp_api_glc_fabc_U-49FbQ8CYQT4

Fixed pressure and bolts right in to the end of the fuel rail on the pro flo. No need to mess around with plumbing for external adjustable regulator. Not cheap, I think it was a bit cheaper when I got it, but I don’t think it can be simpler if you’re ok with having a return.

 

[WyleCoyote]

I just got done doing this very same system - used the Edelbrock 17400 on my mildly built 351w like SDBMtber. I have an in-tank pump and BCB efi fuel lines with return. If I didn't have the return line already I would look into a returnless system or pump-regulated system.

BTW, I learned that bigger is not better when it come to fuel pressure. Unless you are running a big cam don't go with the 58psi regulator, the maps for it don't work well on close to stock engines

Also, does anyone want to buy a Edelbrock 17401 58psi regulator?

 

[WyleCoyote]

I have done 4 of the proflow4 systems so far and doing a 5th this winter. All using in tank pumps.

The Proflow4 doesn't have a built in regulator you will need an adjustable fuel pressure regulator with a regulated return.

There are pretty specific instructions in the kit on setting up your fuel system and I suggest you follow them to a T or you will experience problems. You don't need the Edelbrock sump system to make it work. Any fuel pump with a minimum of 215 liter/hour will work

You should also install a mechanical gauge on the fuel pressure regulator to dial in your fuel pressure. There are two fuel maps one for 43psi fuel pressure and one for 58 psi fuel pressure. You will need to be close to one of them depending on the map you use.

There is a digital fuel pressure gauge within the proflow4 system, but on 2 of the 4 units we have found that the sensor was bad and not accurate

You probably already know this - but when I was looking at the Edelbrock web board, there were discussions of the fuel pressure sender being bad, and edelbrock said they want to know if you got a bad one and will replace it.

 

[geofocusinc]

How does that 17400 work? I was expecting it to mount before the proflow and have 3 fittings input/output and return line. Then it would be sending 43 psi into the proflow.

With the 17400 running at the back end of the fuel rail, is it controlling/lowering the pressure all the way from the pump into the proflow.

I was looking at running a 250lph pump at 100psi and expecting the 17400 to lower the psi before it entered the proflow.
Does the 17400 only run with an Edelbrock pump properly.

 

[DirtDonk]

Not sure this is apples-to-apples, but the factory Ford pressure regulator is virtually "after" the system because it's on the tail end, after the injectors and simply controls output to the return line.
By doing so a regulator can still regulate. It just stays open enough to let anything over your desired pressure escape out the back and and return to the tank.

So it does not have to be before the injectors, as you would normally see with a carburetor. Because with the carb you have to reduce pressure before the needle-n-seat.
That's my take on it anyway. Maybe someone knows otherwise and if so I'd sure love to learn too.

Paul

 

[jhill52]

You have it right Paul.