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  4. ClassE 1989 325IS Build Thread

ClassE 1989 325IS Build Thread

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  • KaiserRollsK
    KaiserRollsK
    KaiserRolls
    wrote on last edited by
    #293

    ClassE said:

    I have a burning hatred of the M20 intake manifold, if I keep that platform it will have to be changed to something (SRI, ITB's, ANYTHING else). I'm open to a lot of ideas... Just not keeping that ugly ass mani.

    M30 swap

    1 Reply Last reply
    0
    • B
      B
      B C
      wrote on last edited by
      #294

      does the sound change as you pull up on the handbrake ? 

      My original handbrake shoes had chunks missing from them

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      • ClassEC
        ClassEC
        ClassE
        wrote on last edited by
        #295

        Snap said:

        does the sound change as you pull up on the handbrake ?

        My original handbrake shoes had chunks missing from them

        Not while driving.

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        0
        • ClassEC
          ClassEC
          ClassE
          wrote on last edited by
          #296

          KaiserRolls said:

          M30 swap

          Sideways squid is just as ugly.

          1 Reply Last reply
          1
          • AndrewA
            AndrewA
            Andrew
            wrote on last edited by
            #297

            I thought my grinding/noise was a poorly adjusted ebrake shoe until i ran the car on jackstands, put my head under the rear, and heard the sound was coming from the diff.  I have a different diff in the car now, soon i will see if i improved things...

            I also have a irrationally massive hatred for the stock m20 intake manifold.  I dont care if i mess up any finely tuned Helmholtz resonance that the stock manifold provides, I want it out. It just doesnt look right to me and clutters up what could be a beautifully clean and simple engine bay.  Sign me up for any ITB development prototypes:)  I was also having turbo thoughts just last night to justify a manifold like this

            baystg1.jpg

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            • andyhundleyA
              andyhundleyA
              andyhundley
              wrote on last edited by
              #298

              That intake manifold is beautiful! Is there any aftermarket companies that them like the one in the picture?

              1 Reply Last reply
              0
              • ClassEC
                ClassEC
                ClassE
                wrote on last edited by
                #299

                I haven't seen any Andy - and I've been looking.

                1 Reply Last reply
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                • ClassEC
                  ClassEC
                  ClassE
                  wrote on last edited by
                  #300

                  I'm LOVING that intake mani above!!!

                  I wonder what the power band would feel like to run a intake mani like that NA, with the intention if running boost in the future? I'm assuming a slight lose of low end torque, but possibly a slight gain at higher end (depending on runner length and size). I'd want internal full bell radius stacks integrated into design....

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                  • R
                    R
                    Rowleym
                    wrote on last edited by
                    #301

                    ClassE said:

                    I'm LOVING that intake mani above!!!

                    I wonder what the power band would feel like to run a intake mani like that NA, with the intention if running boost in the future? I'm assuming a slight lose of low end torque, but possibly a slight gain at higher end (depending on runner length and size). I'd want internal full bell radius stacks integrated into design....

                    Very easy to do with m20! Especially if you aren't incorporating itbs. But I bet you 50$ that intake manifold won't flow better than stock NA.

                    96.jpg96.jpg96.jpg96.jpg

                    sk8 or die

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                    • ClassEC
                      ClassEC
                      ClassE
                      wrote on last edited by
                      #302

                      Rowleym said:

                      Very easy to do with m20! Especially if you aren't incorporating itbs. But I bet you 50$ that intake manifold won't flow better than stock NA.

                      Stock NA? You're probably right. With some standard bolt-ons tho (cam, chip tuning, bigger injectors, etc...) I wouldn't be as confident.

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                      • EarlE
                        EarlE
                        Earl
                        wrote on last edited by
                        #303

                        You could make one work for a good NA build before going to a turbo, but it wouldn't be any better than the octopus besides looking better. In that case, I say do it because I am a douche and am all about looks=)

                        museum sig 2earl.jpg

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                        • ClassEC
                          ClassEC
                          ClassE
                          wrote on last edited by
                          #304

                          I hate the original manifold enough I'd have no issues sacrificing some performance to change the aestethics until I had everything ready for boost. I'd like to pursue the ITB route tho if we can make it cost effective.

                          1 Reply Last reply
                          0
                          • B
                            B
                            B C
                            wrote on last edited by
                            #305

                            A log manifold will have much nicer acoustics/induction sound than the stock M20 manifold. I would do a custom log manifold before ITBs, you will still gain awesome sounds, especially when running MS with a map sensor.

                            1 Reply Last reply
                            0
                            • R
                              R
                              Rowleym
                              wrote on last edited by
                              #306

                              Snap said:

                              A log manifold will have much nicer acoustics/induction sound than the stock M20 manifold. I would do a custom log manifold before ITBs, you will still gain awesome sounds, especially when running MS with a map sensor. 

                              So you believe ITB's with boost wouldn't be really worth it? I could build a regular manifold this weekend... hmmm.

                              96.jpg96.jpg96.jpg96.jpg

                              sk8 or die

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                              • R
                                R
                                Rowleym
                                wrote on last edited by
                                #307

                                And how long of runners should I build? You should help me design a plenum!

                                96.jpg96.jpg96.jpg96.jpg

                                sk8 or die

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                                • ClassEC
                                  ClassEC
                                  ClassE
                                  wrote on last edited by
                                  #308

                                  I can swing buying the materials and labor for a good log mani in fall - I don't think ITB's and everything to do it "right" are my budget for this fall. :(

                                  Here's what I would like to see:

                                  -Tapered plenum that clears stock brake booster

                                  -Velocity stacks (preferrably full bell radius that protrude "into" the plenum - but brake booster clearance could be an issue)

                                  The main issue I see is the brake booster - clearing it restricts the runner lengths.

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                                  • EarlE
                                    EarlE
                                    Earl
                                    wrote on last edited by
                                    #309

                                    http://www.massivebrakes.com/brake-systems.php?p=brake-booster-delete

                                    museum sig 2earl.jpg

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                                    0
                                    • R
                                      R
                                      Rowleym
                                      wrote on last edited by
                                      #310

                                      Well we are starting on our intake manifold this weekend, and we are going to build two! At least for now. Now to find/build some velocity stacks.

                                      Would velocity stacks even matter with forced induction?

                                      96.jpg96.jpg96.jpg96.jpg

                                      sk8 or die

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                                      • R
                                        R
                                        Rowleym
                                        wrote on last edited by
                                        #311

                                        Earl said:

                                        http://www.massivebrakes.com/brake-systems.php?p=brake-booster-delete

                                        I should do this..

                                        96.jpg96.jpg96.jpg96.jpg

                                        sk8 or die

                                        1 Reply Last reply
                                        0
                                        • B
                                          B
                                          B C
                                          wrote on last edited by
                                          #312

                                          Velocity stacks are always beneficial. 

                                          Instead of removing the brake booster, I would probably opt for runners that are angled forward so that the runners and plenum clear it just fine.

                                          Im thinking buy some aluminum 130 degree mandrel bends and do a bundle of snakes like the M5, though all the snakes would be pointed towards the back of the drivers side headlight instead of all over the place.  This would not only help with the clearance issue, but it would also allow you longer runners to keep the mid-range happy

                                          m5intakestackscopy1.jpg

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