Has anyone actually tried an electric supercharger...?

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  • m52 e30
    Member
    • Jul 2006
    • 48

    #1

    Has anyone actually tried an electric supercharger...?

    With humor and a plethora of skepticism I ask, has anyone actually used one of those $200 electric superchargers and out of curiousity, what were the results??? Thanks
  • 02stu
    E30 Modder
    • Jan 2005
    • 872

    #2
    I made one when I was 16 out of a eletric leaf blower and a tennis ball machine, sadly it did nothing. I did manage to ruin the leaf blower and the tennis ball launcher.

    Comment

    • mattdk318i
      No R3VLimiter
      • Jun 2006
      • 3953

      #3
      same here. except i only ruined a leaf blower
      sigpic

      Comment

      • chuckybob
        E30 Modder
        • Aug 2004
        • 952

        #4
        if you mean those pieces of shit that you put in your air intake, dyno results have proven time and time again that theyre completely useless. at least with magnets on your fuel lines theres a notable change.

        if you mean some kind of electric motor powered supercharger on the otherhand, gimme links dammit. should work as long as it can spin RPMs as high as mechanically driven ones.
        : : 1984 318i : : PNW E30 Crew : : Sold!!
        Now becoming the R3vlimited Pro3 car
        http://www.r3vlimited.com/board/showthread.php?t=93780

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        • StereoInstaller1
          GAS
          • Jul 2004
          • 22679

          #5
          If you understand that an alternator is only like 60% efficient, adn an electric motor less so, you will see that the chance of making more power is just impossible.

          Even a "Roots" type is better than that.

          Luke

          Closing SOON!
          "LAST CHANCE FOR G.A.S." DEAL IS ON NOW

          Luke AT germanaudiospecialties DOT com or text 425-761-6450, or for quickest answers, call me at the shop 360-669-0398

          Thanks for 10 years of fun!

          Comment

          • RobertK
            Kicked cancer's ASS.
            • Jun 2005
            • 5864

            #6


            This is the only electric supercharger I know of that can actually produce results. Unfortunately it's only able to produce power for short durations due to the amount of power needed to produce the boost. So you have to activate it with a button like NOS.

            The way I see it is if you are going to spend that kind of money on a supercharger you might as well get the real thing.

            Comment

            • yozsi
              Grease Monkey
              • Feb 2006
              • 337

              #7
              gas powered leaf blower will boost hp and tq

              Unlimited Slip Diff's FTW!
              1972 240z Drift,Scca BSP, Scca ITS Car.

              Comment

              • yozsi
                Grease Monkey
                • Feb 2006
                • 337

                #8

                Unlimited Slip Diff's FTW!
                1972 240z Drift,Scca BSP, Scca ITS Car.

                Comment

                • 02stu
                  E30 Modder
                  • Jan 2005
                  • 872

                  #9
                  Originally posted by StereoInstaller1
                  If you understand that an alternator is only like 60% efficient, adn an electric motor less so, you will see that the chance of making more power is just impossible.
                  Luke
                  Thats a good point, but if you can force more air in, you can force more fuel in. If you can do that you can get more power while decreaseing efficiency. So I think you could get more power but your right, I wonder if thats the same for a belt driven supercharger. A turbo can increase power and efficiency, I bet a supercharger can't. Even if you could get power out of an electric supercharger the power gain vs. all the shit you would get for it wouldn't be worth it. I can't image taking that to an autocross and have them try to class it, you would never here the end of it.
                  stu

                  Comment

                  • silverfbimmer
                    Grease Monkey
                    • Feb 2006
                    • 309

                    #10
                    Superchargers loose 30% of their power through lack of efficiancy. I had an article somewhere that stated this. Turbos are a lot more efficient becuase they don't put any excess strain on the engine to operate. As opposed to a supercharger which uses belts run off the engine to create power.

                    Comment

                    • Tangent
                      E30 Addict
                      • Mar 2004
                      • 476

                      #11
                      With just a really quick search it looks like most gas leafblowers will push a little over 320cfm of air. I'm pretty sure that even a stock m20b25 will pull something more than 500cfm. One of the problems with using a leaf blower to produce boost should be pretty obvious...

                      Comment

                      • RobertK
                        Kicked cancer's ASS.
                        • Jun 2005
                        • 5864

                        #12
                        Originally posted by silverfbimmer
                        Superchargers loose 30% of their power through lack of efficiancy. I had an article somewhere that stated this. Turbos are a lot more efficient becuase they don't put any excess strain on the engine to operate. As opposed to a supercharger which uses belts run off the engine to create power.
                        Both Superchargers and Turbos have there place regardless of efficiency.

                        Superchargers = More Power off the line but less top end.

                        Turbos = Harder to get power off the line but plenty of power to pull on the top end.

                        Comment

                        • chuckybob
                          E30 Modder
                          • Aug 2004
                          • 952

                          #13
                          twin turbo or... dare i say... triple turbo = moar powar off the line B)
                          : : 1984 318i : : PNW E30 Crew : : Sold!!
                          Now becoming the R3vlimited Pro3 car
                          http://www.r3vlimited.com/board/showthread.php?t=93780

                          Comment

                          • ptownTSI
                            E30 Fanatic
                            • Jun 2005
                            • 1265

                            #14
                            while rudimentary compared to many newer applications the blow through carburateur centrifugal supercharger is ALWAYS fun to drive on 30 year old detroit iron. if you ever have the chance to feel so much power, don't hesitate.

                            Comment

                            • Group A
                              Wrencher
                              • Feb 2006
                              • 201

                              #15
                              anything that forces more air into your engine (assuming you give it more fuel to compensate) will make power. so do those electric superhcargers work? they probably do, but not enough to either feel a difference or justify the price

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