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    • VF-Engineering Stage I to Stage III E46 M3 S54 supercharger kit upgrade and tune by Ray West tuning before/after dyno results

      This E46 M3 owner decided to upgrade from the VF-Engineering Stage I supercharger system to the Stage III system. Stages 1, 2, and 3 from VF-Engineering use the exact same Vortech blower. The difference is the mapping and associated parts. In this case going from Stage I to Stage III involved adding larger fuel injectors, an air to water charger cooler (Stage I does not feature intercooling), and a custom tune for the hardware courtesy of UK tuner Ray West.

      The before and after changes with new mapping, cooling, and more fuel are night and day on the same blower. The Stage I graph shows 440.5 wheel horsepower. After the supplemental parts and new tune the result is 538.4 or just about 100 more horsepower at the wheels.

      VF-Engineering has a long documented history of questionable tuning on the E46 M3 platform with their supercharger kits so a custom tune is certainly preferred than going with the canned tune. The result here speaks for itself.


      VF-Engineering Stage I:


      VF-Engineering Stage III with Ray West custom tune:


      This article was originally published in forum thread: VF-Engineering Stage 1 to Stage III E46 M3 S54 supercharger kit upgrade and tune by Ray West tuning before/after dyno results started by Sticky View original post
      Comments 43 Comments
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by SexiPYm3 Click here to enlarge
        From a stop, this may be possible for him to be neck and neck to about 100 mph or so. I was able to pull 12.9 in my completely stock e46 m3. Its been a few years, but I may be able to locate those slips... So his mph might be lower, but he could be neck and neck until the speeds gets higher. Most E9x M3 owners can't drive, and thats exactly why I see them at the track doing 12.8, 12.9, 13.1 in their stock cars.
        Stock E92 M3's have run 12.5. He isn't running neck and neck with an E92 M3, certainly not with those mods.

        Most E46 owners can't launch their cars and that car is also harder to launch than the E92 M3 anyway. Not that bad drivers have anything to do with car capability. The M3 puts out 350 wheel stock. It isn't losing.
      1. digger's Avatar
        digger -
        im pretty sure that the graphs in the OP are not whp. with dynodynamics the "S_hp" is estimated crank hp (whp x 1.2). a whp graph will say "hp" without the S. if it is from the UK then this is usually what they do
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by digger Click here to enlarge
        im pretty sure that the graphs in the OP are not whp. with dynodynamics the "S_hp" is estimated crank hp (whp x 1.2). a whp graph will say "hp" without the S. if it is from the UK then this is usually what they do
        You may be right it is completely dependent on how they have the dyno set.