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Changing Top Feed Injectors? Look Here for pix of fuel rail


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After a few requests from members on how the fuel rails run I decided to take some pix.

 

I dont run the OEM rails, so I laid them out with the manifold and tried to display how they run and connect to the manifold. I also tried to label the hoses and fittings you will find.

 

You can swap injectors without removing the manifold completely. It is not the easiest, but can be done. Hopefully these pix help members understand what they are up against and maybe what goes where when putting it back together.

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I don't know what your kick is today, but these how-to's are surely going to be useful for a lot of people.
[URL="http://legacygt.com/forums/showthread.php/proper-flip-key-interesti-159894.html"]Flip Key Development Thread[/URL] "Genius may have its limitations, but stupidity is not thus handicapped." - E. Hubbard
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Actually many have been posted before. I am going through the forums and trying to place all my write ups in one place so they dont get lost.

 

I am paying for this space on the server, might as well use it for more than adds.

 

Trying to make a "tech info" area out of my vendor forum.

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Keep up the good work. It'll be invaluable.
[URL="http://legacygt.com/forums/showthread.php/proper-flip-key-interesti-159894.html"]Flip Key Development Thread[/URL] "Genius may have its limitations, but stupidity is not thus handicapped." - E. Hubbard
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  • 1 month later...

Nice pics.

 

It is interesting to see the difference in FPR location and design on 07-09 topfeed vs 05-06 sidefeed (I was aware of it from diagrams but haven't seen up close).

 

07-09 cars are missing fuel bypass valve, present on 05-06 (it's part of the FPR assembly mounted on the strut tower). I understand the idea of it is to not circle fuel thru the fuel rails on the hot engine, thus keeping the fuel cooler.

 

08-10 STI, which also has top-feed rails, went to LGT's 05-06 FPR location and design with bypass valve on the strut tower.

 

Earlier years of STI, even the 07 with top-feeds have the FPR on fuel rails, but on the opposite side of 07-09 LGT.

 

It's crazy how Subaru keeps changing/tweaking things like that.

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  • 2 years later...
  • 2 years later...
  • 7 months later...

http://www.infamousperformance.net/storage/happy-veterans-day-pictures.jpg

 

The soldier above all others prays for peace, for it is the soldier who must suffer and bear the deepest wounds and scars of war.

 

Douglas MacArthur

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