FS: M20 Performance Camshafts from BimmerHeads

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  • ninjaotter
    E30 Addict
    • Nov 2009
    • 455

    #31
    Marked for later! I think this would work great in my rebuild.

    Comment

    • MR 325
      Moderator
      • Oct 2003
      • 37825

      #32
      Sounds good! Bump.
      BimmerHeads
      Classic BMW Specialists
      Santa Clarita, CA

      www.BimmerHeads.com

      Comment

      • 603Racing
        Mod Crazy
        • Dec 2010
        • 612

        #33
        What would it cost for a m30b35 regrind, what specs would I be looking at?

        I know this has been asked, but I'll ask again... Any dyno numbers for the m20 regrinds? Or any dyno number for similar spec cams?
        90 325i DD/Track
        03 Durango 5.9


        Originally posted by e30mpg
        It is recommended to get new gasket but this is R3v and we just copper spray that shit......slap biotch on and tighten to tq.

        Comment

        • MR 325
          Moderator
          • Oct 2003
          • 37825

          #34
          Originally posted by 603Racing
          What would it cost for a m30b35 regrind, what specs would I be looking at?

          I know this has been asked, but I'll ask again... Any dyno numbers for the m20 regrinds? Or any dyno number for similar spec cams?
          Let me see if we have any B35 cores left. If we do it will be the same price! We usually do a 284 for the M30.

          Sorry but I don't have any before/after dyno numbers to provide. I wish I did but none of my cars are even close to stock. Gains from a camshaft are also dependent on the exact engine and its supporting mods.
          BimmerHeads
          Classic BMW Specialists
          Santa Clarita, CA

          www.BimmerHeads.com

          Comment

          • 603Racing
            Mod Crazy
            • Dec 2010
            • 612

            #35
            For the sake of conversation, let's say a well maintained stock internal m20b25 with the following:
            Mark D 93 octane chip
            17 lbs injectors
            Ebay headers
            Cat delete

            I'm not looking for hard numbers, just rough guesses. Nothing I would hold anyone to. You can PM me response if you don't want others taking your reply out of context or trying to apply it as fact.
            90 325i DD/Track
            03 Durango 5.9


            Originally posted by e30mpg
            It is recommended to get new gasket but this is R3v and we just copper spray that shit......slap biotch on and tighten to tq.

            Comment

            • MR 325
              Moderator
              • Oct 2003
              • 37825

              #36
              Sorry but I just don't want to make any guesses.

              Bump it up!
              BimmerHeads
              Classic BMW Specialists
              Santa Clarita, CA

              www.BimmerHeads.com

              Comment

              • 310e30
                Grease Monkey
                • Feb 2011
                • 394

                #37
                his cams are great. i have one myself. top end pulls good.

                Comment

                • MR 325
                  Moderator
                  • Oct 2003
                  • 37825

                  #38
                  Originally posted by 310e30
                  his cams are great. i have one myself. top end pulls good.
                  Thanks! :D
                  BimmerHeads
                  Classic BMW Specialists
                  Santa Clarita, CA

                  www.BimmerHeads.com

                  Comment

                  • 603Racing
                    Mod Crazy
                    • Dec 2010
                    • 612

                    #39
                    Originally posted by MR 325
                    Sorry but I just don't want to make any guesses.

                    Bump it up!
                    Understood. Does the cam timing stay true to the OEM specs?
                    90 325i DD/Track
                    03 Durango 5.9


                    Originally posted by e30mpg
                    It is recommended to get new gasket but this is R3v and we just copper spray that shit......slap biotch on and tighten to tq.

                    Comment

                    • MR 325
                      Moderator
                      • Oct 2003
                      • 37825

                      #40
                      Originally posted by 603Racing
                      Understood. Does the cam timing stay true to the OEM specs?
                      Yes. You will not need an adjustable cam gear.

                      Any further questions please PM me!
                      BimmerHeads
                      Classic BMW Specialists
                      Santa Clarita, CA

                      www.BimmerHeads.com

                      Comment

                      • IDM
                        Mod Crazy
                        • Feb 2010
                        • 753

                        #41
                        Will the 274 require upgraded HD valve springs? Or can the stock tired springs handle the valve float?

                        Comment

                        • MR 325
                          Moderator
                          • Oct 2003
                          • 37825

                          #42
                          Originally posted by IDM
                          Will the 274 require upgraded HD valve springs? Or can the stock tired springs handle the valve float?
                          Valve float? Stock valve springs are FINE.

                          I am running this cam in my 267whp M20 with original (good) valve springs.
                          BimmerHeads
                          Classic BMW Specialists
                          Santa Clarita, CA

                          www.BimmerHeads.com

                          Comment

                          • IDM
                            Mod Crazy
                            • Feb 2010
                            • 753

                            #43
                            Originally posted by MR 325
                            Valve float? Stock valve springs are FINE.

                            I am running this cam in my 267whp M20 with original (good) valve springs.
                            YES, valve float.

                            "Floating Valves" refers to a condition in which the valve-springs fail to fully close the valves, allowing them to "float" during the stroke cycle. Floating valves can result in valve-piston contact with consequent catastrophic mechanical damage. This is caused by revving the engine past it's red-line, or the maximum RPMs the engine was designed to run.


                            I once installed a schrick 284 with OEM stock (brand new) springs and the springs couldn't close the valve fast enough ie. valve float. The valve was hitting the piston slightly. Fixed it with schrick springs but had to tear the whole thing apart which sucked. Anyway, will contact you guys in a couple months for a P&P head and cam.

                            Comment

                            • MR 325
                              Moderator
                              • Oct 2003
                              • 37825

                              #44
                              Originally posted by IDM
                              YES, valve float.

                              "Floating Valves" refers to a condition in which the valve-springs fail to fully close the valves, allowing them to "float" during the stroke cycle. Floating valves can result in valve-piston contact with consequent catastrophic mechanical damage. This is caused by revving the engine past it's red-line, or the maximum RPMs the engine was designed to run.


                              I once installed a schrick 284 with OEM stock (brand new) springs and the springs couldn't close the valve fast enough ie. valve float. The valve was hitting the piston slightly. Fixed it with schrick springs but had to tear the whole thing apart which sucked. Anyway, will contact you guys in a couple months for a P&P head and cam.
                              Thanks, I am aware what valve float is.

                              A Schrick 284 cam is more aggressive than the cam I'm offering in this thread.

                              Please PM with any further questions. Thanks!
                              BimmerHeads
                              Classic BMW Specialists
                              Santa Clarita, CA

                              www.BimmerHeads.com

                              Comment

                              • garagewelt
                                Forum Sponsor
                                • May 2008
                                • 843

                                #45
                                Going to have you guys supply me with S14 cams once the time comes!

                                Awesome, awesome, awesome.
                                90 Alpine M3 | 90 Brilliantrot M3 | 85 Alpine 520i

                                Comment

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