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    Thread: TPI Injectors

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    1. #7
      Join Date
      Apr 2001
      Location
      The City of Fountains
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      16,129
      Country Flag: United States
      Quote Originally Posted by Olav
      Can I plug/ cap the outlet from the fuel rail and use this. Many use this for LS engines up to 450hp plus.
      No. The LS1 engines operate at 58.5psi. That is what the C5 filter/regulator are set to. The older systems were at 43.5psi.

      Technically the C5 fuel suystem is not returnless. The return line runs from the filter/regulator back to the tank.



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