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    • Spool Performance claims to have upgraded HPFP's (high pressure fuel pumps) for Mercedes-AMG M176, M177, and M178 motors

      Spool Performance is primarily known on BoostAddict for their BMW N54 Helix HPFP overdrive system. Developing an upgraded high pressure fuel pump is very different from overspinning an OEM pump.


      The Mercedes-AMG M176, M177, and M178 motors are all direct injected and share a similar 4.0 liter twin turbo V8 architecture. The higher horsepower aftermarket examples tend to rely on methanol for supplemental fueling.

      Spool Performance states their FX-150 pumps are testing now:

      Quote Originally Posted by Spool Performance
      Look who’s getting Spool FX pumps next 👀!!! Mercedes AMG upgraded high pressure fuel pumps releasing soon!!

      No data is posted or pricing info but it appears they are working with Eurocharged on the dyno testing. If so, you can rest assured this fuel system upgrade will be legitimate with software that works.

      Hopefully specifications and results are posted soon.

      This article was originally published in forum thread: Spool Performance claims to have upgraded HPFP's (high pressure fuel pumps) for Mercedes-AMG M176, M177, and M178 motors started by Sticky View original post
      Comments 2 Comments
      1. MuffinFlavored's Avatar
        MuffinFlavored -
        How many labor hours approximately is it to upgrade these pumps? I wonder if they'll get E85...
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by MuffinFlavored Click here to enlarge
        How many labor hours approximately is it to upgrade these pumps? I wonder if they'll get E85...
        Unfortunately, I don't know the answer.