injectors for boost
Thread Starter
Launching!
Joined: Jun 2004
Posts: 236
Likes: 4
From: Kintnersville, PA
injectors for boost hey, just wanted some input on if the 60# high impedance motron injectors were too much to tune a stock LS1 w/ a ATI Procharger setup w/ 9# boost?
I will soon be putting in a low compression forged LS1 too handle 15# on pump gas (94) in the fall, but wanted to know if those injectors would work for now.
Also, if im not mistaken, these are rated at the standard 3-bar, so they would actually be around 72# on the LS1 4-bar, 58 PSI system.
thanks.
I will soon be putting in a low compression forged LS1 too handle 15# on pump gas (94) in the fall, but wanted to know if those injectors would work for now.
Also, if im not mistaken, these are rated at the standard 3-bar, so they would actually be around 72# on the LS1 4-bar, 58 PSI system.
thanks.
Last edited by BoostedWS7; Sep 15, 2004 at 07:11 PM.
TECH Enthusiast
Joined: Sep 2004
Posts: 564
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From: Omaha, NE
Now wait a minute, unless I'm missing something here, if you have 60 LB injectors rated at 3 bar, then you run a constant 58 psi fuel pressure (4 bar) with 15 psi boost (1 Bar), you are back to a 60 LB/HR injector (58 psi - 15 psi = 43 psi, just call it 3 bar). Remember, it is the difference across the injector that determines an injector's static flow. Now if you have the return style fuel system with the fuel pressure regulator set at 58 and boost referenced, I would agree, but I don't think you do, right?
EJ
EJ
dynocar.. your math is right.. but the relationship between flow and pressure is not linear is what i am saying. if you add 15 then take 15 away then the relationship doesnt matter because the relative pressure never changed in your example
Thread Starter
Launching!
Joined: Jun 2004
Posts: 236
Likes: 4
From: Kintnersville, PA
right now , i do have a boost referanced FMU. Was running 5# boost on the stock injectors for years. I did want to get rid of the FMU, get another fuel pump to handle more hp and regulate that at 58 psi, and try to tune for 60# injectors. If this sounds bad, Please give me any pointers that you can, as i am not 100% sure. thanks!
TECH Enthusiast
Joined: Sep 2004
Posts: 564
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From: Omaha, NE
Originally Posted by MIGHTYMOUSE
dynocar.. your math is right.. but the relationship between flow and pressure is not linear is what i am saying. if you add 15 then take 15 away then the relationship doesnt matter because the relative pressure never changed in your example
EJ
