1st Gen R53 Cooper S vacuum problem, maybe?

Discussion in '1st Generation: 2002–06 R50, R53 & 2004–08 R52' started by hohokam, Jul 8, 2009.

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  1. hohokam

    hohokam New Member

    Jun 14, 2009
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    On my 05 MCS i have a dry rot crack in my intercooler couplers( the little black rubber thing that connects the intercooler to the tubes.) I dont know how big of an issue this could be. Could it be possible that i have vacuum leak?
     
  2. Nathan

    Nathan Founder

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    Those boots are inexpensive. Pick up a new set.

    No need for the fancy silicone ones either. OEM does a fine job.
     
  3. goaljnky

    goaljnky New Member

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    But the fancy silicone ones are so much prettier. And so much harder to put on.
     
  4. hohokam

    hohokam New Member

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    haha well i am unsure if i want to get a new intercooler or not... so idk if i should wait till a get a new one or just fix the problem now?
     
  5. k-huevo

    k-huevo Club Coordinator

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    Yes, replace the bellows now, loss of boost = loss of fun.
     
  6. Nathan

    Nathan Founder

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    The OEM I/C is also darn good. Not much out there that will do better.

    In the grand scheme of Modding an I/C comes after head, cam, pulley, intake, exhaust, header and tune. Just a list, no order to be construed. Then even you need to be careful when choosing an I/C. There are some expensive paperweights out there.
     
  7. hohokam

    hohokam New Member

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    Really now? would a different air diverter or something along those lines be good?

    since modding the intercooler comes last even after a tune shouldn't i mod it first then get the tune?
     
  8. BlimeyCabrio

    BlimeyCabrio Oscar Goldman of MINIs
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    The stock setup works pretty well - aftermarket air diverters can make a small difference, but need to seal properly or they can make a negative difference.

    Unless you fall into a pit of money and plan to do your mods all at once, you'll want retunes at several points along the way IMHO. After you're already tuned for a particular head, cam, pulley, exhaust, etc. the impact of changing the IC will likely be negligible to the tune, IMHO.
     
  9. Crashton

    Crashton Club Coordinator

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    Just curious here. How can one make a negative difference? I have an Alta that seals against the bonnet. Don't know if it makes any difference, but it looks pretty cool on there. :lol:
     
  10. BlimeyCabrio

    BlimeyCabrio Oscar Goldman of MINIs
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    *IF* it does *NOT* seal properly... then you likely reduce airflow through the IC vs. the stock setup.

    Not only does it need to seal against the bonnet - it needs to seal to the scoop when the bonnet is closed... so air into the scoop has nowhere to go except through the IC.

    My current setup has some issues with this (with a DDM diverter and Voltage scoop and OEM inner scoop "liner" removed) because I'm to lazy to spend an afternoon getting the seals right.
     

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