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fuel pressure regulator mod

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Old Jan 1, 2006 | 11:30 PM
  #1  
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From: HARRISBURG PA.
fuel pressure regulator mod

is there a fuel pressure regulator mod for a 99 F250 P/S? if so how to do the the mod an fuel pressures settings.. thanks
 
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Old Jan 2, 2006 | 06:08 AM
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Originally Posted by bigdog13
is there a fuel pressure regulator mod for a 99 F250 P/S? if so how to do the the mod an fuel pressures settings.. thanks
Yes. U can shim the FPR with a special kit:

http://www.dieselinnovations.com/tec...structions.pdf
 
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Old Jan 2, 2006 | 09:55 AM
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I have the dieselinnovations kit. It works very well for the price. You need a fuel pressure guage to be able to know how thick of shim to use.
 
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Old Jan 2, 2006 | 10:23 AM
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I have a 2002 f-450 will the instructions and shims used be the same for that model of truck? What kind of benefits should you get from this mod?
thanks for any info
 
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Old Jan 2, 2006 | 10:32 AM
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Originally Posted by 1BIGTOY
I have a 2002 f-450 will the instructions and shims used be the same for that model of truck? What kind of benefits should you get from this mod?
thanks for any info
Welcome to FTE 1bigtoy. Yes it will work for your truck, they are all the same from '99 - 03.
 
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Old Jan 2, 2006 | 11:14 AM
  #6  
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Originally Posted by Kwikkordead
I have the dieselinnovations kit. It works very well for the price. You need a fuel pressure guage to be able to know how thick of shim to use.
Where is the kit located on their site?
 
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Old Jan 2, 2006 | 12:31 PM
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I can't find it on that site either.
Is there a noticable difference in performance when this mod is done?
 
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Old Jan 2, 2006 | 01:03 PM
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Originally Posted by 1BIGTOY
I can't find it on that site either.
Is there a noticable difference in performance when this mod is done?
I couldn't tell a difference when I installed it. At the time I had no power mods. I had around 55 psi fuel pressure at idle and I wanted to boost it to 65. The closest I could get was 69 so I left it there.
I went and looked at the site, they still offer it for sale. It's under the 7.3 section of the "fuel" catagory. About halfway down the page for $39.95.
 
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Old Jan 2, 2006 | 01:04 PM
  #9  
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Be aware it you increase it too much the o rings will go out on the water seperator drain valve...he he he lol.
 
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Old Jan 2, 2006 | 01:06 PM
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Originally Posted by kennedyford
Be aware it you increase it too much the o rings will go out on the water seperator drain valve...he he he lol.
I was more worried about the o-rings on the injectors when I made the decition to limit the pressure, but you make a great point there. They are just as vulnerable to over-pressure as well. Not to mention the plastic fuel filter cap.
 
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Old Jan 2, 2006 | 01:18 PM
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Originally Posted by Kwikkordead
I couldn't tell a difference when I installed it....
.
Is there a reason for more fuel pressure without mods or does it help with a chip or tuner?
 
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Old Jan 2, 2006 | 01:24 PM
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I'm with pbr man. What's the benefit of increasing the fuel pressure with stock injectors? And would you see more benefit with some mods?

My truck's got several mods on it already (see signature), but I'm still seeing a little black smoke out of the exhaust, which tells me that I'm already getting enough fuel, as it's not burning it all now. Would there be a need to increase fuel pressure if I'm not burning everything that goes into it now?
 
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Old Jan 2, 2006 | 02:31 PM
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To try the utmost to adequately fill that number eight injector with all the fuel the others are getting.

Pop
 
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Old Jan 2, 2006 | 04:08 PM
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Would an HPX line help with that too? How does increasing the fuel pressure with shims work in conjunction with a tuner or chip?

I didn't know that the number 8 injector was starved for fuel. I'm always learning something new here.
 
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Old Jan 2, 2006 | 04:42 PM
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Originally Posted by jtharvey
Would an HPX line help with that too? How does increasing the fuel pressure with shims work in conjunction with a tuner or chip?
HPX= High Pressure Crossover. The HPOP's output, high-ressure oil, is regulated. The sensor is connected to only one head's "rail". Installing the HPX provides a connection for both high-pressure oil rails to work together. The end result is better high-pressure oil regulation, allowing the optimum for both rails to be equal pressure no matter individual demands. Typically, you'll notice a smoother idle.

Originally Posted by jtharvey
I didn't know that the number 8 injector was starved for fuel.
Do a search on "cackle" or "injector knock". There's an AMAZING amount of information.

Pop
 
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