Stand alone fuel pressure?
Stand alone fuel pressure? 02 SS Camaro LS1 EFI. I want to put a stand alone fuel system on my car so how much fuel pressure do I need to the fuel solenoid. I am coming off the fuel rail now @ 50 plus psi. When I go to the stand alone will a Holley Blue pump work or do I need a high pressure pump? What pressure is required?
Thanks
Thanks
FormerVendor
Joined: Feb 2012
Posts: 634
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From: Waco, TX
Since the blue pump is low pressure i would get a low pressure tune on the dedicated. 7-10 psi is good median so that you can drop or raise the fuel pressure to get your tune dialed in.
What kind of direct port do you have?
What kind of direct port do you have?
TECH Apprentice
Joined: Nov 2009
Posts: 367
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From: Kentucky
Neal
I also am going to switch from my rail to a Holley Blue and Stand Alone. My only concern is how well the Holley will atomize the fuel coming out of the plate. At a higher pressure I would guess that it atomizes better?
Does anyone know what the regulator that comes with the Holley Blue is pre-set to?
Thank
Sarge
I also am going to switch from my rail to a Holley Blue and Stand Alone. My only concern is how well the Holley will atomize the fuel coming out of the plate. At a higher pressure I would guess that it atomizes better?
Does anyone know what the regulator that comes with the Holley Blue is pre-set to?
Thank
Sarge
FormerVendor
Joined: Feb 2012
Posts: 634
Likes: 0
From: Waco, TX
Neal
I also am going to switch from my rail to a Holley Blue and Stand Alone. My only concern is how well the Holley will atomize the fuel coming out of the plate. At a higher pressure I would guess that it atomizes better?
Does anyone know what the regulator that comes with the Holley Blue is pre-set to?
Thank
Sarge
I also am going to switch from my rail to a Holley Blue and Stand Alone. My only concern is how well the Holley will atomize the fuel coming out of the plate. At a higher pressure I would guess that it atomizes better?
Does anyone know what the regulator that comes with the Holley Blue is pre-set to?
Thank
Sarge
Your going to be fine on atomization as long as you change out your fuel jetting to the appropriate jetting. We have plenty of customers running the plate on low pressure dedicated fuel systems.
I have a HSW 78 mm plate. I am getting gas from the rail at the end and figured it would be smarter to leave that fuel system alone for engine and run a stand alone for the fuel solenoid and put 104 unleaded into it. the Holley blue will not put out as much pressure as the stock tank pump. Does that matter or not. Do I need a high pressure pump to flow the fuel to the solenoid or the holley blue and @ what pressure?? The high pressure is for the injectors anyway so what would be the deal on the fuel solenoid??
I can set the regulator to what ever pressure I need but I do not know the max pressure of a holley blue. The HSW plate im sure is built to flow a certain amount of fuel @ a certain amount of pressure with a certain jet. I need to be educated here. Can I run a stand alone on a EFI Plate kit with a Holley blue or is the high pressure pump a must in this application??
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I run the Holley blue pump with a low pressure standalone system, i run 9psi. ,but mine is a direct port system 8 nozzles.the atomize has a lot to do with the type of fogger nozzle you will be using. The nitrous pressure help brake the fuel up and carries it to the runners.
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Brett Foote I can set the regulator to what ever pressure I need but I do not know the max pressure of a holley blue. The HSW plate im sure is built to flow a certain amount of fuel @ a certain amount of pressure with a certain jet. I need to be educated here. Can I run a stand alone on a EFI Plate kit with a Holley blue or is the high pressure pump a must in this application??
Harris Speed Works HSW is out of Business now. The kit I have is 78 MM wetplate kit adjustable from 75-150. I have the jets 75hp= n2o=.044 fuel=.024 100hp=n2o=.052 fuel=.028,,,,,,,125hp= n20=.057 fuel=.031,,,,,150hp=n20=.062 fuel=.035. The question is can I run these jets in the HSW plate with a holley blue on the fuel solenoid @ 9-10 psi?? or whatever pressure or do I need to buy the Nitrous Outlet stand alone with the high pressure pump in it with the regulator. $100.00 cuz I already have most of the parts for Holley blue system or $600.00 for the Nitrous outlet very nice system. Opinions and advice please chime in.
I have a low pressure standalone kit with a Holley blue. Fuel pressure is set around 6-6.5 psi. I am using this for Wilson plate kit. I have a 9 spread on my jets.......82n and a 73f.
The main benefit with a low pressure system versus a high pressure system is with the low pressure system you have much more room to fine tune the amount of fuel being used as the pressure is lower and each change in jet will be a finer more minute adjustment.
With high pressure it might come to a point where you go down a jet size and it's too little fuel and it's too lean and you go back up in jet and it's too much and makes it too rich. With low pressure this wouldn't happen because you have a more finite adjustment.
We had this problem on our shop car on a 104n jet we were either too rich or too lean with just a .01 change in jet size on 58psi. To alleviate this we went to a low pressure set-up with a double crossbar plate. The low pressure should allow us more finite adjustments when needed.
With high pressure it might come to a point where you go down a jet size and it's too little fuel and it's too lean and you go back up in jet and it's too much and makes it too rich. With low pressure this wouldn't happen because you have a more finite adjustment.
We had this problem on our shop car on a 104n jet we were either too rich or too lean with just a .01 change in jet size on 58psi. To alleviate this we went to a low pressure set-up with a double crossbar plate. The low pressure should allow us more finite adjustments when needed.
The jet charts are just recommended starting points. You need to tune the car with a given jet spread and look at plugs and/or log the fueling with a wideband.
I run mine at 12.0 air fuel with a 52N/32F but your results may vary. I'm pulling from the rail on an already taxed fuel system so I put in a bigger fuel pill to help get the necessary fuel requirements for my shot. My standalone cell goes in next week and then I won't have to worry about it
I run mine at 12.0 air fuel with a 52N/32F but your results may vary. I'm pulling from the rail on an already taxed fuel system so I put in a bigger fuel pill to help get the necessary fuel requirements for my shot. My standalone cell goes in next week and then I won't have to worry about it