• Harrop Engineering releases short teaser of their Eaton TVS1740 positive displacement M3 S65 V8 supercharger kit running

      The last time we saw the Harrop Engineering TVS based positive displacement supercharger kit was back in May of this year. In that article it was mentioned that a lot of work was still ahead especially in the area of tuning before this kit would ready to be released. Harrop Engineering clearly has been working on it and posted a teaser video you can see below showing the kit running on the S65 V8 with an M3 on the dyno.


      Unfortunately, no further details are provided with the video which just shows the wheels moving. No dyno figures yet but this is a complicated process and there is a reason nobody has brought a positive displacement M3 kit to market. It's very, very hard to do.

      Pricing is expected to be in the $12,990 area with a release this Fall.

      The main thing to take away is it's still coming and according Harrop relatively soon. BimmerBoost wishes them well and wants to make it clear when this comes to market it will be an achievement worthy of great respect. Good luck to all involved.

      This article was originally published in forum thread: Harrop Engineering releases short teaser of their Eaton TVS1740 positive displacement M3 S65 V8 supercharger kit running started by Sticky View original post
      Comments 62 Comments
      1. inlineS54B32's Avatar
        inlineS54B32 -
        Click here to enlarge Originally Posted by e46m3to335i Click here to enlarge
        Here's how I see forced induction in "most" scenarios.

        HP
        Turbos > Centri > Twin Screws > Roots/TVS > N2o

        TQ
        N2o > TVS/Roots > Twin Screws > Centri > Turbos
        I don't understand why the chart would change depending on the "application" (in this case HP vs Torque) - is it hard to flow N2O fast enough at top?
      1. LostMarine's Avatar
        LostMarine -
        Click here to enlarge Originally Posted by e46m3to335i Click here to enlarge
        Here's how I see forced induction in "most" scenarios.

        HP
        Turbos > Centri > Twin Screws > Roots/TVS > N2o

        TQ
        N2o > TVS/Roots > Twin Screws > Centri > Turbos
        You should start a new thread comparing all these. I have some info to share but would be in appropriate in a Harrop thread