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+--- Thread: How to: fuel pressure regulatot? (/showthread.php?tid=5338)
How to: fuel pressure regulatot? - Sami/B - 02-13-2014
i'm building a om606.96x with a 8mm 220cc dieselmeken IP.
According to Göran, it needs to be fed with 1bar at idle and 3bar att max rev.
How do i do that?
how do you guys run your pre-pump(s)?
RE: How to: fuel pressure regulatot? - Simpler=Better - 02-14-2014
I think those are the minimum pressures-so if you setup a fuel pump that always supplied 3.5bar you would probably be okay. I'm not an expert but just guessing.
RE: How to: fuel pressure regulatot? - mantahead - 02-14-2014
a rising rate pressure regulator would do the job, more boost = more fuel pressure.
RE: How to: fuel pressure regulatot? - EmJay - 02-16-2014
There are old regulators made by Holley for turbocharging carburetors, more boost would allow more fuel pressure. I imagine that one of these would do the job, or one like it anyways.
RE: How to: fuel pressure regulatot? - Hario' - 02-17-2014
I was under the impression fuel pressure was raised with revs to ensure complete element filling as time available to do so reduces with rev rise.
I don't think increasing fuel pressure with boost would have any effect on quantity output.
For over 15psi a rising rate fuel pressure regulator from a fuel injection system is required because cabs systems rarely pressurise the float bowl to over 15spi, if my memory from turbo austin mini days serves me correct.
H
RE: How to: fuel pressure regulatot? - barrote - 02-17-2014
hy there,
well , in my setup i eliminate the lift pump and bought a BMW fuel pump, actually it is not a BMW pump, is a pump suitable for BMW cars (gas) something like a coca cola can, 100€ more less . this pump can be set in series in the fuel line. is fantastic can deliver 3to5 bar wich is to much in idle. very often i end up with burst pipes. the reguator i´m using is a 0,2 mm hole in the fuel filter exit. to avoid busrting the piping i have a swich to turn it on when i really need the power, and belive me it is noticeable.
regards
RE: How to: fuel pressure regulatot? - mantahead - 02-17-2014
(02-17-2014, 08:05 AM)Hario I was under the impression fuel pressure was raised with revs to ensure complete element filling as time available to do so reduces with rev rise.you have a point, original lift pump will work harder with rpm as its drive of pump cam.
I don't think increasing fuel pressure with boost would have any effect on quantity output.
For over 15psi a rising rate fuel pressure regulator from a fuel injection system is required because cabs systems rarely pressurise the float bowl to over 15spi, if my memory from turbo austin mini days serves me correct.
H
what do you suggest with electric pump?
RE: How to: fuel pressure regulatot? - pmj4147 - 02-17-2014
http://www.ebay.com/itm/FASS-FUEL-SYSTEMS-PRESSURE-REGULATOR-DODGE-FORD-CHEVY-/130518646254?pt=Motors_Car_Truck_Parts_Accessories&hash=item1e63847dee&vxp=mtr
What about this??
This actually made for diesel(Cummins, Duramax bla bla bla)
RE: How to: fuel pressure regulatot? - Tito - 02-17-2014
Why 1 bar on idle? I don't think its a huge problem if you just have 3 bar from a electric pump on idle? or am i missing something?
RE: How to: fuel pressure regulatot? - john - 02-17-2014
Read somewhere that the rack can stick if you run 3 bars at idle.
The thing my man from sweden is searching for is a progressive FPR
http://www.biltema.se/sv/Bil---MC/Bil-tillbehor/Tuning/Prestanda/Bransletrycksregulator-79741/
I will be using a 044 copy for my superturbobuild. Norwegians have used it with success
http://www.biltema.se/sv/Bil---MC/Bilreservdelar/Motorstyrning/Luft--Bransle/Branslepump/Branslepump-52250/
RE: How to: fuel pressure regulatot? - F.R.A.S - 02-17-2014
No need for a progressive FPR. A progressive one will up the pressure with a constant like 1.4 or such. So 1bar boost will give 2.4bar fuel pressure, 2bar boost will give 3.8bar fuel pressure (if the no boost fuel pressure is 1bar).
A normal (linjär in Swedish) FPR will just ad the boost in fuel pressure so the same scenario will be 2bar and 3bar fuel pressure.
A normal Bosch 044 or a good intank pump is a good solution together with a good quality FPR of your choice.
RE: How to: fuel pressure regulatot? - Hario' - 02-18-2014
(02-17-2014, 09:58 AM)barrote hy there,
well , in my setup i eliminate the lift pump and bought a BMW fuel pump, actually it is not a BMW pump, is a pump suitable for BMW cars (gas) something like a coca cola can, 100€ more less . this pump can be set in series in the fuel line. is fantastic can deliver 3to5 bar wich is to much in idle. very often i end up with burst pipes. the reguator i´m using is a 0,2 mm hole in the fuel filter exit. to avoid busrting the piping i have a swich to turn it on when i really need the power, and belive me it is noticeable.
regards
This is mostly guesswork and some experience from my end, we are **intend on* using the stock bosch tank mounted pump in the 606/w201 project we are building because it seems to pump diesel fine, and the lift pump had to be omitted for the huge alda device i designed.
And I can't see why a regulator would have to be diesel specific as theyre only a diaphram type?
RE: How to: fuel pressure regulatot? - Sami/B - 03-03-2014
(02-17-2014, 01:49 PM)Tito Why 1 bar on idle? I don't think its a huge problem if you just have 3 bar from a electric pump on idle? or am i missing something?
Oh, forgot about this threed.
If you run to high pressure at idle, acording to dieselmeken, the engine Will run rough at low rpm.
But i'll guess i just run with a FPR.
However, i have not bought a pre-pump. Might try with 1 (or two?) china 044 replicas.
Thanks for all replys!
RE: How to: fuel pressure regulatot? - mantahead - 03-03-2014
i did some experimenting with feed pressure and once run 4 bar, even at idle. leak off pipes like to blow off
this was the only problem i had.
RE: How to: fuel pressure regulatot? - Sami/B - 03-05-2014
(03-03-2014, 04:40 PM)mantahead i did some experimenting with feed pressure and once run 4 bar, even at idle. leak off pipes like to blow off
this was the only problem i had.
Ok, sounds good.
Did you have the FPR on the pressure side, or on the surplus side?
What pump did you use?
Thanks!
RE: How to: fuel pressure regulatot? - mantahead - 03-05-2014
just used petrol fuel injection pump no idea what make or what it was off. just used different return banjos for a regulator.
RE: How to: fuel pressure regulatot? - Triker - 03-06-2014
I use two 044 copy pumps with bypass fuel regulator before the injection pump. The regulator add the fuel pressure vs boost and it returns extra fuel back to tank. I also make Arduino based controller for the lift pumps. When I drive <1,5bar boost only one pump works and after 1,5bar boost Arduino starts the second pump also and both pumps work. This because I don´t have fuel cooler and there will be plenty of fuel what goes through the FPR and it warms the fuel very much. It also saves the pumps to not to work that hard all the time. Fuel lines are 10mm ID from and back from tank. I use 1 bar fuel pressure in idle and 3bar with full boost. Arduino controlling is now on process and we´ll see how this setup works when spring arrives here.
RE: How to: fuel pressure regulatot? - muuris - 03-06-2014
There's no reason to have significant pressure on the IP, positive pressure (indicating flow) is enough. Those 3bar setups are just overkills. Of course you need fuel lines big enough to have flow.
I've dynoed 450hp with 0,1bar between filter and IP at top revs
Gasser fuel (injection) pumps aren't great if the car has to see winter driving.
RE: How to: fuel pressure regulatot? - Sami/B - 03-06-2014
(03-06-2014, 09:03 AM)muuris There's no reason to have significant pressure on the IP, positive pressure (indicating flow) is enough. Those 3bar setups are just overkills. Of course you need fuel lines big enough to have flow.
I've dynoed 450hp with 0,1bar between filter and IP at top revs
Gasser fuel (injection) pumps aren't great if the car has to see winter driving.
Ok, so a Holly blue would do it the i guess?
But why does Dieselmeken say 3bar?
My pump is specified to 220cc, is it with 3bar, or at N/A feed, or does it matter?
RE: How to: fuel pressure regulatot? - muuris - 03-06-2014
Holley HP-150 is a decent pump, one just has to remove the inlet screen filter for diesel use.
Max injected fuel quantity doesn't depend on inlet pressure in (practically) any way. All you need is that the injection pump is topped up all the time. You need flow, not pressure. Don't know if dieselmeken modifies the stock return banjo, which has a kind of pressure valve to restrict return flow.
RE: How to: fuel pressure regulatot? - maxypriest - 03-06-2014
I'm planning to use a holley black as it's rated as 140 us gall per hour at one bar. That is a lot of fuel!
RE: How to: fuel pressure regulatot? - Sami/B - 03-06-2014
(03-06-2014, 01:08 PM)muuris Holley HP-150 is a decent pump, one just has to remove the inlet screen filter for diesel use.
Max injected fuel quantity doesn't depend on inlet pressure in (practically) any way. All you need is that the injection pump is topped up all the time. You need flow, not pressure. Don't know if dieselmeken modifies the stock return banjo, which has a kind of pressure valve to restrict return flow.
Ok, i have an holly blue, but it haven't been going since 1980ish.
I'll just try. Do i need a FPR to that one?
i have the stock holly if it's to any use...
RE: How to: fuel pressure regulatot? - erling66 - 03-07-2014
(02-13-2014, 04:28 PM)Sami/B i'm building a om606.96x with a 8mm 220cc dieselmeken IP.
According to Göran, it needs to be fed with 1bar at idle and 3bar att max rev.
Aftermarket elements has different design, so if Gøran says so, it is because he has tested it and found out that his pumps need 3 bar to be able to completely fill the elements at high revs. Pumps from Myna or PP will need a different fuel pressure so ask your pump builder. They will know.
No need to run high fuel pressure(just to be safe), it is just a waste of energy and a risk of spilling fuel on the road.
Holly pumps work great on diesel(and even on WVO) Gasser pumps don't like fuel that is too thick and breaks down.
RE: How to: fuel pressure regulatot? - Triker - 06-07-2014
Here is a little clip about the twin "044" lift pumps with bypass regulator controlled with Arduino. Drive clips is coming soon when the SJ4000 arrives.
http://youtu.be/ySPiZ5i5g0g
RE: How to: fuel pressure regulatot? - Sami/B - 06-08-2014
(06-07-2014, 11:45 AM)Triker Here is a little clip about the twin "044" lift pumps with bypass regulator controlled with Arduino. Drive clips is coming soon when the SJ4000 arrives.
http://youtu.be/ySPiZ5i5g0g
Oh, How long have you been running with the pumps?
Do you have the FPR on the fuel in or out?
Got any vids of how it more in action?
Thank you
RE: How to: fuel pressure regulatot? - Triker - 06-08-2014
(06-08-2014, 04:57 AM)Sami/B(06-07-2014, 11:45 AM)Triker Here is a little clip about the twin "044" lift pumps with bypass regulator controlled with Arduino. Drive clips is coming soon when the SJ4000 arrives.
http://youtu.be/ySPiZ5i5g0g
Oh, How long have you been running with the pumps?
Do you have the FPR on the fuel in or out?
Got any vids of how it more in action?
Thank you
Just this spring I get this setup working. FPR is before IP and the extra fuel goes back to tank. SJ4000 action cam is ordered and coming. When I get that I´ll post some driving clips. I tried to film with one hand and steer one hand but the film looked ridiculous because the phone spinned with my hand and filmed the roof, doors, floor and windows
Have to keep focus of driving.
RE: How to: fuel pressure regulatot? - 560 - 11-27-2014
(06-08-2014, 11:40 AM)TrikerWhen you have mounted FPR before the IP did you plugg the return on the IP?(06-08-2014, 04:57 AM)Sami/B(06-07-2014, 11:45 AM)Triker Here is a little clip about the twin "044" lift pumps with bypass regulator controlled with Arduino. Drive clips is coming soon when the SJ4000 arrives.
http://youtu.be/ySPiZ5i5g0g
Oh, How long have you been running with the pumps?
Do you have the FPR on the fuel in or out?
Got any vids of how it more in action?
Thank you
Just this spring I get this setup working. FPR is before IP and the extra fuel goes back to tank. SJ4000 action cam is ordered and coming. When I get that I´ll post some driving clips. I tried to film with one hand and steer one hand but the film looked ridiculous because the phone spinned with my hand and filmed the roof, doors, floor and windows
RE: How to: fuel pressure regulatot? - F.R.A.S - 11-28-2014
Tell me how you can have 3bar in the IP with the regulator before the IP. That's just not possible. The FPR needs to be on the return line. And yes we have tested this in Dieselmekens test bench. You do need 3bar to get the right "filling" of the elements.
RE: How to: fuel pressure regulatot? - hents99 - 11-29-2014
With Mallory etc FPRs it`s possible. These FPRs are fitted before pump/fuel rail.
RE: How to: fuel pressure regulatot? - Petar - 11-29-2014
How ?? The pressure relief valve in the pump will open and the fuel will go back to the tank !!???
If you could draw a sketch of the fuel lines that would be helpfull.
RE: How to: fuel pressure regulatot? - hents99 - 11-29-2014
I never used this kind of system personally but I have seen it on others cars. Mallory one works like this:
![[Image: fuel_rail1_595.jpg]](http://www.v6z24.com/jbodyforum/files/fuel_rail1_595.jpg)
RE: How to: fuel pressure regulatot? - F.R.A.S - 11-29-2014
Look at the picture. Both pictures show the regulator AFTER the fuel rail (or IP for us dirsel guys). Only in the second picture you are fooled by the external look of the FPR.
RE: How to: fuel pressure regulatot? - Triker - 11-29-2014
Sorry about the delay of the reply. My "compound STC" is sold and if the new owner wants to tell more about his modifications he will write here(forum reader). I just told what my fuel pressure gauge told me.. I had modified banjo bolt after injction pump and fuel pressure regulator before IP, believe it or not.. and it took info from boost and added fuel pressure. It was almoust 3.2bar so I had to turn it back a little bit not to break IP´s gasgets. Because some say that over the 3bar fuel pressure breaks the gasgets sooner than later.
Here is some film how the dieselmeken IP rocks with 3bar fuel pressure(Had to turn boost little bit moore after that
):http://youtu.be/arcOJ2vyAUo
RE: How to: fuel pressure regulatot? - F.R.A.S - 11-30-2014
Where did you have your gauge?
RE: How to: fuel pressure regulatot? - Duncansport - 11-30-2014
Just an FYI here.. If you get a fuel filter from most any 1998-2005 Mercedes it has a built in FPR set at 3 bar. They are only about $60 and all hose barb fittings.
https://www.fcpeuro.com/products/mercedes-fuel-filter-0024773001?gclid=Cj0KEQiAneujBRDcvL6f5uybhdABEiQA_ojMguYsHY4gW_25bWdgVOp1YKKHSTK6CJk1P4Eo2EU7f54aApyB8P8HAQ
RE: How to: fuel pressure regulatot? - cho - 12-01-2014
(11-29-2014, 05:42 PM)Triker Here is some film how the dieselmeken IP rocks with 3bar fuel pressure(Had to turn boost little bit moore after that
http://youtu.be/arcOJ2vyAUo
it's private ....
.
RE: How to: fuel pressure regulatot? - Triker - 12-05-2014
(12-01-2014, 08:28 AM)cho(11-29-2014, 05:42 PM)Triker Here is some film how the dieselmeken IP rocks with 3bar fuel pressure(Had to turn boost little bit moore after that
http://youtu.be/arcOJ2vyAUo
it's private ....
.
Now it should be seen again...
Quote:Where did you have your gauge?In the cabin from the fp gauge.