2nd Gen R56 Cooper S N14 vs N18 Information

Discussion in '2nd Generation: 2007+ R55 through R61' started by Jason Montague, Aug 29, 2012.

  1. Jason Montague

    Jason Montague New Member
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    #1 Jason Montague, Aug 29, 2012
    Last edited: Aug 29, 2012
    :cornut:Where would be a good place to find or does any one know of a good write up comparing and contrasting the physical and performance differences between the N14 and N18 engines both normal and boosted induction? :Thumbsup:

    Jason
     
  2. Nathan

    Nathan Founder

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    This is a compilation of posts from various sources around the interwebs.


    N14 Engine - N14B16AC (171hp / 177 ft-lbs)
    • Infinitely variable single VANOS (intake only)
    • Siemens DME MED17.2 engine management

    N18 Engine - N18B16M0 (181hp / 191 ft-lbs)
    • Infinitely variable double VANOS
    • Map-controlled oil pump
    • Variable valve timing (Valvetronic) with 3-phase servomotor and integrated eccentric shaft sensor
    • Composite camshaft construction
    • New piston design
    • Siemens DME MEVD17.2.2

    The PCV design is updated in the N18. Rather than an external hose on the passenger side, the vacuum line is internal to the valve cover. This is (presumably) intended to reduce propensity for effluents pooling in the intake manifold. The boost line between the valve cover and turbo intake pipe is also different but seems to be functionally equivalent.

    The N18 added a cosmetic cover over the front of the valve cover.

    The N18 adds a small heat shield over the turbo oil pipe to help mitigate any coking in the line.

    The turbo intake pipe in the N18 is rigid, as opposed to the flexible pipe in the N14.

    The noisemaker is eliminated in the N18.

    The N18 intake airbox base is slightly different (the JCW intake won't fit because the mounting screws don't line up).

    The N18 oil dipstick is different (and many would say a step backwards in usability)

    The Sport Button adds "pop and burble" to the exhaust
     
  3. Jason Montague

    Jason Montague New Member
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    :cornut: Thank you very much Nathan. All of the info that I needed is there. :Thumbsup:

    Jason
     
  4. TBangin23

    TBangin23 New Member

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    The new dipstick really is a piece of crap. Power is definitely different in the N18 vs the N14.

    Plus the pop and burble sounds awesome!

    I just traded my 2007 R56S in on a 2012 stage 1 JCW a few months ago. Diggin' it!
     
  5. Dave.0

    Dave.0 Helix & RMW Powered
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    You should have upgraded to an R53. :wink::lol:
     
  6. Jason Montague

    Jason Montague New Member
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    :cornut: No no you don't understand, he wants fast performance not slow nostalgia:devil::lol::Thumbsup:

    Jason
     
  7. TBangin23

    TBangin23 New Member

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    I knew it was a matter of time before hearing this from you. Lol. Hey, Paul's GP is pretty nice. I love the whine of the supercharger. But even in the GP he has problems keeping up with my JCW. The low end torque I have compared to him is crazy.

    Either way, they're both amazing cars and I'd drive either any day. But I like mine. Lol.

    I do have to say, the R53 clutch is so much nicer than the R56 squishy clutch. -__-
     
  8. Nathan

    Nathan Founder

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    Two different flavors in a similar shell. Some like both, some like one over the other...

    It's getting old.

    Besides, we are all going to have the 3rd Gen MINI to kick around soon.
     
  9. TBangin23

    TBangin23 New Member

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    True, but we all know it'll never end.

    Classic owners don't like the R53.
    R53 owners don't like the R56.
    And R56 owners probably won't like the F56. Lol.

    Either way, it's a MINI. We should all be happy we agree on that. ;) Lol
     
  10. Dave.0

    Dave.0 Helix & RMW Powered
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    Nathan I was messing with him as he was over my house a few weeks ago with Paul. Oh and he was driving Paul's GP and loving it.

    At the rate Mini is going the 3rd Gens are going to be like Hondas. Booooooring

    Oh I don't hide the fact that I don't like the second gens. Just as much as the purest original mini owners don't like all of us "BMW Mini's".

    It's ok we all get along and I would sell or trade my R53 for a good original mini 7 days a week.
     
  11. TBangin23

    TBangin23 New Member

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    I knew you were playing anyways. Lol. I even thought to myself, "I bet if Dave sees my comment he'll say to get a R53." i was right! Lol. I did love that GP though. Hahaha. I won't lie one bit.

    The sad thing is I went home trying to work a nice used one into my budget! Hahah. If only it didn't snow in Central PA... Lol. Next fund goes to the Audi Quattro. Lol.

    Paul had a good point though. I should invest in a R53 and make it a trackrat. ;) Just leaves me with a pointless R56 JCW... Lol. Oh well. Too late now! Hahah.
     
  12. Dave.0

    Dave.0 Helix & RMW Powered
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    /\ It's all good man......:Thumbsup::devil::lol:
     
  13. JCWorx

    JCWorx New Member

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    As far as the mounting screws not lining up, has anyone replaced the bottom airbox housing (on an N18) with the N14 housing then added the "old" cone style gen2 JCW airbox.... I was told this works and has been done. I'm about the pull the pulg on both a JCW intake (JCW AI PN: 13720429380) and the whole Intake muffler assembily housing (Intake Muffler PN: 13717577509) and see if it will fit on the N18 (Gen2 GP).... I have to get the whole stock muffler to get the bottom housing part of the N14....
     
  14. AM_AUTOS

    AM_AUTOS New Member

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    Getting the N18 OEM noisemaker delete pipe fitted to my JCW with n14 engine on the 27th

    :D
     
  15. Austinsynthetics

    Austinsynthetics Active Member
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    I recently upgraded my 07 MCS to a 12 MCS, N18 engine and what a difference. In addition to the power difference, it is so very smooth. While trying to upgrade my air intake I noticed the mounting holes were notably different...and chose to go with the DOS CAI. I looks good, and also provided a bump in HP....and the turbo swoosh is awesome!
     

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  16. Firebro17

    Firebro17 Dazed, but not Confused
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    Don't sell or trade Dave..... It's much better to just get one of each!
     

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