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Parallel Fuel Rail with Standard Rails- DIY

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Old 10 December 2019, 11:39 AM
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Pugtk
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Default Parallel Fuel Rail with Standard Rails- DIY

Hi All,

Upgrade to nismo 555cc injectors, along with a sytec fpr with a fuji racing 340 pump.

Should I make a parallel fuel setup from the standard rails or is there any point.

Just when I'm at it is it a good measure to ensure one cylinder is'nt getting the fuel needed?

I was just thinking of using standard 8mm fuel hose for the setup.

I'm only aiming for 320-340bhp

Rest of spec:
V4 STI
VF48
555CC
FMIC
3" Turbo Back
SARD Induction Filter
Standard BOV ( Also have a VTA )
Lightend Flywheel
Exceedy Pink Clutch




Old 13 December 2019, 01:34 PM
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Henrik
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Hmm, I did something similar with my own car for a bit, but IMO it's not a great solution (though it is cheap). It felt like I had hoses floating about everywhere.

I've gone back to a standard setup for the time being (new-age wrx).

Also, at the 300-350hp level, surely it's not needed? I don't think it's possible for the 555cc injectors to spray enough fuel out of the rail for pressure to be seriously affected at the last injector.

Old 01 January 2020, 07:40 AM
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MrNoisy
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Originally Posted by Henrik
Hmm, I did something similar with my own car for a bit, but IMO it's not a great solution (though it is cheap). It felt like I had hoses floating about everywhere.

I've gone back to a standard setup for the time being (new-age wrx).

Also, at the 300-350hp level, surely it's not needed? I don't think it's possible for the 555cc injectors to spray enough fuel out of the rail for pressure to be seriously affected at the last injector.
Agreed, at those power levels it’s simply not a concern.
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