Taco's hopes and mostly dreams.

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  • squidmaster
    R3VLimited
    • Aug 2011
    • 2666

    #31
    Ah, doing something overly complicated for the sake of doing something overly complicated. I like your style! Life isn't worth living unless you're pushing what you know and can do!

    Comment

    • squidmaster
      R3VLimited
      • Aug 2011
      • 2666

      #32
      Although the diagram you made is different than most twin charged setups I've seen. Any particular reason?

      Comment

      • TheTacoMan
        R3VLimited
        • Nov 2011
        • 2308

        #33
        Originally posted by squidmaster
        Although the diagram you made is different than most twin charged setups I've seen. Any particular reason?
        Which one are you referring to?

        This gives a pretty good explanation of what can be done
        We look at how to build a twincharger setup for your car and discuss the various twincharger configurations and their performance advantages with twin turbos, supercharger or one of each.

        Im planning to run them in series where the boost is compounded, where the last diagram is ran inline where ideally you would want the supercharger to stop providing boost once out of its efficiency range.

        Comment

        • squidmaster
          R3VLimited
          • Aug 2011
          • 2666

          #34
          Sorry only one loaded on my phone.

          #3

          Comment

          • TheTacoMan
            R3VLimited
            • Nov 2011
            • 2308

            #35
            Originally posted by squidmaster
            Sorry only one loaded on my phone.

            #3
            Yea Im not planning on touching that one, just spit balling on paper. Im sure its been done before as well.

            Comment

            • squidmaster
              R3VLimited
              • Aug 2011
              • 2666

              #36
              And for 2 why not place the Intercooler between the turbo and SC? The SC itself wont get as hot so it doesn't really need a postcooler. A lot of SC setups use preschoolers because the position of the SC relative to the intake manifold.

              Edit: just curious! Always wanting to learn ��

              Comment

              • e30nub
                E30 Mastermind
                • Jun 2008
                • 1741

                #37
                Interested to see how you overcome the hurdles of twincharging. Ideal set up would be to have the supercharger over-driven to produce boost at idle. That boosted air should run non-intercooled straight into the intake of the turbo. This allows the turbo to be "pre-spooled" (i.e., limiting "lag"). After the supercharger can no longer push enough air into the turbo (maybe 12psi?), have a valve that opens up to atmosphere allowing the intake of the turbo to breathe freely (and supercharger's air can just dump somewhere else?) and continue producing boost on it's own. Then run your charged air through an intercooler into the intake of the engine.

                I probably sound crazy (it's because I am). We have been toying around with the idea at the shop I work at for a while on our shop truck (can you say mid-engined compound cummins turbo diesel '49 ford?) Wait, WHAT?
                -Pierre
                1987 535is
                1988 325is

                Comment

                • TheTacoMan
                  R3VLimited
                  • Nov 2011
                  • 2308

                  #38
                  Superchargers tend to run quite hot at high rpm thus the loss in power in the higher rpm range as well as the parasitic loss. This is the way Denny runs his supercharger and he is seeing his air temps around 90 Degrees F if I remember correctly.

                  Im looking into My first setup idea right now, this also gives a wicked good explanation on more twin charging and why its setup a certain way. Its long but informative.

                  Using the Turbo Calculator to design your twincharged engine... 1- Twincharger concept 2- Sequencial charger arrangement 3- Air metering and intercooling 4- Bypass…

                  Comment

                  • TheTacoMan
                    R3VLimited
                    • Nov 2011
                    • 2308

                    #39
                    Originally posted by e30nub

                    I probably sound crazy (it's because I am). We have been toying around with the idea at the shop I work at for a while on our shop truck (can you say mid-engined compound cummins turbo diesel '49 ford?) Wait, WHAT?
                    Now thats something Id like to see.



                    There is alot of possibility of what can be done, Im sure Ill go through a few ideas then change alot along the course of the build once the supercharger is in.

                    Comment

                    • e30nub
                      E30 Mastermind
                      • Jun 2008
                      • 1741

                      #40
                      Originally posted by TheTacoMan
                      Now thats something Id like to see.
                      We have a long way to go, but here's a teaser photo of where were at today. We will start running charge pipes this week. If you want to tag along we use hashtag #oldsmokeyf1 on instagram.



                      Oh and I'm definitely subscribing to this thread!
                      -Pierre
                      1987 535is
                      1988 325is

                      Comment

                      • wazzu70
                        E30 Enthusiast
                        • Jan 2005
                        • 1143

                        #41
                        Originally posted by TheTacoMan
                        Its not about peak Hp so to speak. Its about having the best of both worlds and me wanting to be overly complicated
                        Thats cool. My car is a grounds for experimenting for me too. Many things I do just to see if I can do it or to learn something. This looks like it will be a fun experiment.

                        FWIW though I wasn't talking about peak hp at all. The EFR series is known for excellent transient response and mid range torque as they were developed for road course racing.
                        -Nick

                        M42 on VEMS

                        Comment

                        • TheTacoMan
                          R3VLimited
                          • Nov 2011
                          • 2308

                          #42
                          Im looking into Kinugawas at the moment, they make some quite large turbos that would work well.

                          Comment

                          • TheTacoMan
                            R3VLimited
                            • Nov 2011
                            • 2308

                            #43
                            Bimmerheads cam and adjustable cam are were just ordered. Planning to port match the intake and exhaust manifolds for a bit better flow. Cant wait to slap this head together see what its like.

                            Comment

                            • TheTacoMan
                              R3VLimited
                              • Nov 2011
                              • 2308

                              #44
                              More parts on order.
                              Tial Mcv 38mm wastegate
                              Tial Rep BOV
                              New Airfilter Setup
                              Turbo.


                              Getting the turbo side done first then moving over to the supercharged side :)

                              Comment

                              • MR 325
                                Moderator
                                • Oct 2003
                                • 37825

                                #45
                                :up:
                                BimmerHeads
                                Classic BMW Specialists
                                Santa Clarita, CA

                                www.BimmerHeads.com

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