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What Cams to buy??

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    #16
    Still havent desided on what cam to buy...... PLEASE HELP Me!!!

    Since the 327i swap I added a comforti 7,000rpm chip and 17.5lbs injectors.
    Need help deciding what cam to buy....
    Its a track driven car only....But people say that the 288 will not clear the valves????
    would a 272 or a 284 help... The car needs more power up top.
    also have 2:96 gears dont know if I should go to 3:73 or 4:10.
    sigpic
    1986 "C2 2.7 Alpina" Sedan
    1987 325ic Black Vert
    1986 327i Red Track Car RIP 10/10/10
    1989 325is Henna S50 track car SOLD


    Transaction feedback here please!!
    http://www.r3vlimited.com/board/showthread.php?t=170548

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      #17
      piston to valve clearance will be an issue with the 288, the 284/272 just scrapes in but needs to be checked prior to starting.

      catcam make some nice cams the 285/285 or 285/264 might be worth a shot.

      Originally posted by Luis325 View Post
      Still havent desided on what cam to buy...... PLEASE HELP Me!!!

      Since the 327i swap I added a comforti 7,000rpm chip and 17.5lbs injectors.
      Need help deciding what cam to buy....
      Its a track driven car only....But people say that the 288 will not clear the valves????
      would a 272 or a 284 help... The car needs more power up top.
      also have 2:96 gears dont know if I should go to 3:73 or 4:10.
      89 E30 325is Lachs Silber - currently M20B31, M20B33 in the works, stroked to the hilt...

      new build thread http://www.r3vlimited.com/board/showthread.php?t=317505

      Comment


        #18
        I gues my best bet would be to just go ahead with a 272 cam with good springs and rockers and valves and a 3:73lsd... I gues it woul really help my car allot...
        sigpic
        1986 "C2 2.7 Alpina" Sedan
        1987 325ic Black Vert
        1986 327i Red Track Car RIP 10/10/10
        1989 325is Henna S50 track car SOLD


        Transaction feedback here please!!
        http://www.r3vlimited.com/board/showthread.php?t=170548

        Comment


          #19
          Megasquirt
          288 Shrick
          Upgrade springs
          New valve guides (titanium maybe)
          M30 ARM
          Headers
          Straight exhaust delete cat, with Remus muffler
          Heat shielded CAI


          Of course your going to do a new TB and tensioner. Maybe New cam gears. Stewart WP. Underdrive pulleys, delete AC if you havent already. PS too if its a track car only.
          sigpic 1987 325is

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            #20
            titanium valve guides? lol
            Build thread

            Bimmerlabs

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              #21
              I saw them on e46 fanatics... LOL...

              Sounds good. Im pretty sure they are an alloy with titanium. Also didnt realize 288 cam would cause an issue. But, yeah.. can see how it would I guess.
              sigpic 1987 325is

              Comment


                #22
                Originally posted by txtorquemade View Post
                Megasquirt
                288 Shrick
                Upgrade springs
                New valve guides (titanium maybe)
                M30 ARM
                Headers
                Straight exhaust delete cat, with Remus muffler
                Heat shielded CAI


                Of course your going to do a new TB and tensioner. Maybe New cam gears. Stewart WP. Underdrive pulleys, delete AC if you havent already. PS too if its a track car only.
                titanium retainers maybe.....
                m30 AFM and megasquirt are a wierd combo, right. I thought with MS you could go MAP and get rid of the AFM.

                Comment


                  #23
                  Are u running ETA or SETA pistons? If u milled your head 0.020" like I did w/ ETA pistons, I'd check piston to valve clearance on even the 272. Stock "k" cam clearance on my engine is 0.065" intake...that's below the recommenced 0.080 i / 0.100 ex safe zone.

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