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Anyone know if these are complete????

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  • Anyone know if these are complete????

    This looks quite interesting .....

    http://www.ebay.co.uk/itm/bmw-E30-m3...item3a7f83ecf0


    Does anyone know if these were indeed ex BTCC like the seller says?
    And if so what else would i need to run these? Is it just plugged in the oil system?
    It looks like a good idea....
    Last edited by MagnusKK; 03-18-2013, 07:01 AM.

  • #2
    Wow! Now that is a rare find...
    sigpic

    1988 Diamantschwarz/Black

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    • #3
      I have never seen or even heard of that.
      Neat find.
      I wonder how it works...
      jimmy p.
      87 E30 M3 Prodrive British Touring Car
      88 E30 M3 Zinnoberot - Street
      88 E30 M3 Lachsilber - Race (#98 SCCA SPU)
      92 E30 M Technic Cabrio - S14 POWERED!
      98 318Ti M44, Base - Morea Green
      04 Ford F350 - V10

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      • #4
        oil pressure driven variable runner slide throttles ?! Never seen these before. great idea though.

        88 M3 - LACHSSILBER/M TECH
        89 M3 - ALPINEWEISS II/SCHWARZ
        85 323I S52 - ALPINEWEISS/SCHWARZ
        91 M TECHNIC TURBO - MACAOBLAU/M TECH


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        • #5
          It says it runs off oil pressure so I'm guessing the runners are on some kind of spring and when RPMs increase and therefore oil pressure, the pressure pushes the runners towards the head shortening the length 'tuning' the induction frequency of the engine

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          • #6
            Originally posted by ItsNotTheNissan View Post
            It says it runs off oil pressure so I'm guessing the runners are on some kind of spring and when RPMs increase and therefore oil pressure, the pressure pushes the runners towards the head shortening the length 'tuning' the induction frequency of the engine
            Thats what i think too. But where would it take the pressure from and what peripherals are needed?

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            • #7
              T it from the oil filter housing.

              88 M3 - LACHSSILBER/M TECH
              89 M3 - ALPINEWEISS II/SCHWARZ
              85 323I S52 - ALPINEWEISS/SCHWARZ
              91 M TECHNIC TURBO - MACAOBLAU/M TECH


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              • #8
                what would be cool is for someone to replicate this (assuming this actually works) and do a group buy!!!!

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                • #9
                  now that's cool

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                  • #10
                    Variable length intake runners before it was cool!

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                    • #11
                      I remember seeing something similar back in my formula SAE days (Detroit 2004 competition ) . Although I believe the one i saw used intake vacuum to actuate the runners.

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                      • #12
                        I've never heard of this setup either on a Gr-A car of any variant. I'd tread cautiously. The inlet opening looks quite small, but that
                        could be just the digital pics.
                        Ron ///Man

                        • '91 Gr-A Former CiBiEmme / Ravaglia - Sold
                        • '90 M3 Faux EVOII Alpineweiss 36K Orig Owner - The Queen
                        • '91 M3 Faux EVO III Brilliantrot Euro Driveline - The Rocket
                        • '91 M3 Faux Gr-A Club Racer DM - The Alter EGO
                        • '89 M3 M3T / ITR Club Racer
                        • '94 Spec E36 - Eh....
                        • '09 M3 - Tarmac Terrorist
                        • '04 330Xi Sport 6 Speed - Snowmobile
                        • '07 530 Xi - Highway Star
                        • http://www.imwcarparts.com/e30-m3-parts.htm


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                        • #13
                          LOL,,, am I the only one who is staring at thses pics wondering how in the fuck that thing actually works.
                          Like,,, ok its not rocket science, I know how it "works",,, but how does it really "work" in real life on a car with an air box, and tuning, and such.

                          I can see this part being someones dream, a team engineers side project, that was set aside and never worked.
                          If it did,,, I think 20 years later, we would have seen more than one of these mermaids.

                          Not being cynical,,, just cant see how to actually implement this into a working scenario.
                          jimmy p.
                          87 E30 M3 Prodrive British Touring Car
                          88 E30 M3 Zinnoberot - Street
                          88 E30 M3 Lachsilber - Race (#98 SCCA SPU)
                          92 E30 M Technic Cabrio - S14 POWERED!
                          98 318Ti M44, Base - Morea Green
                          04 Ford F350 - V10

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                          • #14
                            looks like maybe there is a piston(like a master cyl) inside the part that attaches between what appears to be a delrin bushing and the flat slide plate that pulls the threaded rods down as oil pressure is applied thru the AN fittings overcoming the spring inside ,thereby shortening the horns,as oil pressure goes down spring returns horns to full length????(balance the spring to oil pressure to get desired movement?) swap between the first two pics and see the rod is in for first pic out on second. damn clever if it works in real world and is legal.... prolly not used with a airbox on a race motor be hard to plumb and seal airbox ,and would then sound fabulous...

                            todays motors they do it with different length runners in the same manifold and a rollover valve to change runner lengths at a set rpm
                            Last edited by spdracrm3; 03-18-2013, 02:28 PM.
                            Angus Proud
                            88 E30 M3 X2
                            89 E30 325IX
                            92 R100GS/PD
                            :ha:

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                            • #15
                              Why does it look like there's a tiny little throttle plate under the actuators (right next to the slide throttles, on the left side of the last picture)?

                              Hmm... Upon further review, perhaps that's just an oil passage. Wow. Sure wish I had WAY more/better pictures to look at...

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