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    Thread: TPI Injectors

    1. 07-07-2007 #1
      Olav's Avatar
      Olav
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      TPI Injectors

      A friend of mine have these injectors for sale. Will they fit my TPI intake?
      I know some ford fit Chevy TPI Intake



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    3. 07-07-2007 #2
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      They should fit.
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    4. 07-08-2007 #3
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      Thanks,hope these will be good for 400hp plus....

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    5. 07-10-2007 #4
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      Regulator

      Is it ok to use the C5 filter/ regulator for my engine swap. Seems like a simple solution. Or.......

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    6. 07-10-2007 #5
      EFI69Cam
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      Quote Originally Posted by Olav
      Is it ok to use the C5 filter/ regulator for my engine swap. Seems like a simple solution. Or.......

      Olav
      The pressure will be higher than what those injectors are rated at.
      Also the C5 uses a returnless fuel system. If you have a TPI your reg is on the fuel rail.
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    7. 07-10-2007 #6
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      Can I plug/ cap the outlet from the fuel rail and use this. Many use this for LS engines up to 450hp plus.
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    8. 07-10-2007 #7
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      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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