Engine Drivetrain 1st Gen Cooper S Most liked posts in thread: Adventures in head porting..

  1. k-huevo

    k-huevo Club Coordinator

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    #2 k-huevo, Jul 26, 2010
    Would you show us a close-up of the camshaft wear you've mentioned in other threads please?
     
  2. Dr Obnxs

    Dr Obnxs New Member

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    #3 Dr Obnxs, Jul 26, 2010
    Cool to see...

    thanks for sharing and keep us posted on the progress.

    Matt
     
  3. Metalman

    Metalman Well-Known Member
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    #4 Metalman, Jul 26, 2010
    Cool........
    A beer drinking, head porting girl.
    Great combination!:D

    Looking forward to the build.:cornut:
     
  4. Eric@Helix

    Eric@Helix New Member
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    #5 Eric@Helix, Jul 26, 2010
    :Thumbsup:

    I like her beer goggles.
     
  5. istara

    istara New Member

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    #6 istara, Jul 26, 2010
    Last edited: Jul 26, 2010
    Yes, I've been meaning to get a shot of it. I'll snap one today.

    014.jpg
     

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  6. Thumper460

    Thumper460 Active Member

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    #7 Thumper460, Jul 26, 2010
    GREAT DYI!! The work looks good!! and you didnt try to get creative and go way past your knowledge!! ( or beer consumption!! ) Great work!!

    I didnt follow the cam wear thingy... what cam was it?? OEM?? (I ask 'cause the core looks pretty ruff) all the springs are too light ( save the 80 lb one) They will work on a stocker... but you aint there no more.

    If the cam is stock ..or the lift is under .400" you might be able to shim to correct pressures ( leaving room for coil bind) or just get a new set. I asume your friends have already advised you, cool??
    Kudos!!

    Just me..................................

    Thumper
     
  7. PGT

    PGT Wheel Whore

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    #8 PGT, Jul 26, 2010
    nice job so far
     
  8. istara

    istara New Member

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    #9 istara, Jul 26, 2010
    That's a newman cam. Stock one had similar wear, however:

    012.jpg
    Just much narrower area and no pitting like on the newman.

    That's probably 25k miles on the newman and 60k on the stock cam, many of them hard miles. I should have numbers on all 32 springs by the end of the week. My measurements at home probably weren't that accurate anyway, so I'll be borrowing some tools at the machine shop.

    From there, yes, I am definitely looking at my options for springs. Probably something cheap (more stock springs, shims maybe) until I can afford to replace both the cam and springs with more exciting options.
     
  9. Thumper460

    Thumper460 Active Member

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    #10 Thumper460, Jul 26, 2010
    Cool... at the shop get the pressures and see what it will take for the pressures to get to be 85 lbs at installed height. You need to get the lift at the valve for the newman, I believe the it is close to .400 lift. Check the spring stack and see how much you can shim, and still have the coil binding distance..

    Have fun....

    Thumper

    PS thanks for the cam discription.
    Tpr
     
  10. istara

    istara New Member

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    #11 istara, Jul 26, 2010
  11. istara

    istara New Member

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    #12 istara, Aug 15, 2010
    Alright, car is finally up and running again. I think fixing the inner axle boot was actually harder than the whole head porting project. Wideband so far is looking good, hitting 11lbs of boost at 3500 feet altitude, 50% humidity, and 105 degrees ambient. Will take it out again tonight and see what happens, then hit the drag strip in a few weeks until I can find a dyno.

    I've been considering getting it tuned in the near future but I'm dubious about the two nearest options for that.

    But.. to the pictures! I didn't get anything too fantastic of the final ports since the light wasn't good. Just take the C&C pictures you've seen and pretend they're a lot rougher and 'handmade' looking.

    Swirl polished valves:
    [​IMG]

    Putting the head back on is easy as 1:
    [​IMG]

    2:
    [​IMG]

    3:
    [​IMG]

    And couldn't resist touching up the intake manifold and horns while in there. Didn't have quite the right tools to make them perfect (no mirror finishes here) but we did get the ports perfectly lined up. Took a little material off a gasket or two and had to do a bit to get the intake manifold ports perfect with the head including opening up the outside holes so there was more wiggle room on re-installation.
    [​IMG]
    [​IMG]

    And for bonus points, this is the one and only spare part I ended up with: :mad2:
    [​IMG]
    13mm head... any ideas!? :crazy:
     
  12. Onasled Racing

    Onasled Racing New Member

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    #13 Onasled Racing, Aug 18, 2010
    Fuel rail
     
  13. beaner

    beaner New Member

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    #14 beaner, Aug 18, 2010
    Spent much time around these motors, Greg!?
     
  14. Mr. Jim

    Mr. Jim Mudshark
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    #15 Mr. Jim, Aug 18, 2010
    I second that! Great job, thanks for sharing.

    Cheers
    Mr. Jim
     
  15. Onasled Racing

    Onasled Racing New Member

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    #16 Onasled Racing, Aug 18, 2010
    More then I'd like. :eek:

    I probably should have said "Fuel rail ?"
     
  16. Eric@Helix

    Eric@Helix New Member
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    #17 Eric@Helix, Aug 18, 2010
    Close, Greg, but not the fuel rail. It's the bolt that holds the water line bracket on the intake side of the head. The fuel rail bolts are black coated.
     
  17. Onasled Racing

    Onasled Racing New Member

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    #18 Onasled Racing, Aug 18, 2010
    Oh....haaa. I don't have one of those anymore I guess. ;)
     
  18. goaljnky

    goaljnky New Member

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    #19 goaljnky, Aug 18, 2010
    You all need to start a bolt identifying thread, cause I have about a half dozen that I have no idea where they came from.
     
  19. BlimeyCabrio

    BlimeyCabrio Oscar Goldman of MINIs
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    #20 BlimeyCabrio, Aug 18, 2010
    I think a few fell out of your left ear.