1st Gen R53 Cooper S SC rebuild

Discussion in '1st Generation: 2002–06 R50, R53 & 2004–08 R52' started by hohokam, Oct 25, 2009.

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  1. hohokam

    hohokam New Member

    Jun 14, 2009
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    Denton, Texas
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    While in austin last week for the dyno/tune, jan found out that my SC was running hotter than normal. Meaning that my timinig was cut in half, ergo, lack of full power. Sooo, I am needing to rebuild the ole' bad boy.

    I am hopefully going to do this soon,

    so if anyone knows where i can send it, please let me know.
     
  2. ScottinBend

    ScottinBend Space Cowboy
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    May 4, 2009
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  3. sc? as in a lexus sc? or a cooper s? lol mcs?
     
  4. hohokam

    hohokam New Member

    Jun 14, 2009
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  5. ohhhh superchargers lol. sorry i was on the lexus forums looking at pics and i wasnt thinking MINI earlier :p
     
  6. hohokam

    hohokam New Member

    Jun 14, 2009
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    You always have to think MINI :D
     
  7. Dr Obnxs

    Dr Obnxs New Member

    Jun 11, 2009
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    A Man of Wit and Charm! (Just ask my wife!)
    Woodside, CA, up in the hills and trees.
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    You should ask for a clarification.....

    There are two ways for air to get back "around" the SC. One is for the by-pass valve to start to go or not seal well. This is external to the SC and can be replaced in the driveway. The other is called "reversion" and is from air leaking around the rotors or being sucked back through the rotors as they mesh because there's a bit of a void there.

    I'm not sure I understand the description of what's going on with your car.

    Two other places that do SC rebuilds are Endyn and Steigemeier (and I always spell the last one wrong).

    Matt
     
  8. phydeaux

    phydeaux New Member

    May 5, 2009
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    So what's the local opinion on the bearing shield being cracked, requiring a whole new SC unit? I've got an '05 SC sitting in a box in my garage for this very reason, requiring (through a long story) that I run with an '04 build SC on my late '05 MCS. I've kept it just in case, cause I felt it amazing that no one could rebuild one of these things.

    And while we're on the subject, is the '05+ SC significantly better with that fin coating or whatever it was? Does that alone account for the +5 HP that came about with the '05 MCS? Was I silly to keep an SC sitting in a box for the last two years, just on the off chance that I may someday want to swap back to the (perceived) better SC?
     
  9. Way Motor Works

    Way Motor Works New Member

    May 4, 2009
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    We offer to do supercharger rebuilding. The price actually varies based off of what you need. When we get it in we inspect the blower and evaluate what it needs. Then price it to you. If you want to do it and want less turn around we keep a rebuilt one ready to ship to you.

    FYI: I used supercharger technologies and they are terrible, I stopped using them, and also have had a couple blowers fail less than 2k miles after they rebuilt it.
     
  10. checkers

    checkers Well-Known Member

    Jun 11, 2009
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    PSE modified my SC (ported) and replaced all the bearings with upgrades. They did a good job, but it took 3 weeks longer than they said it would. I haven't had any problems with it.
     
  11. Nitrominis

    Nitrominis Banned

    May 9, 2009
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  12. Bimmer Lite

    Bimmer Lite New Member

    May 5, 2009
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    I used Dustin at autoxcooper. He's very helpful and stands by the work the machine shop does. It's more $ than supercharger technologies by about $200-300 depending on what you want done.

    No complaints about the new (rebuilt) charger yet. I'll have complaints if it doesn't last!

    - Marc
     
  13. Dr Obnxs

    Dr Obnxs New Member

    Jun 11, 2009
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    For those that want more than a simple rebuild

    There is A LOT of stuff to think about. There's the coatings that can be applied to rotors and case, there's also the sound ports on the outlet. Some companies fill them some don't. I've thought about this a lot but don't have any data to back up my guesses. Anyway, just so you all know, not all shops do the same thing when upgrading the units. So do your homework.

    I've also found that going directly to the source of the work gets a bit clearer lines of communication as to what's going on, and a lower price point as well. But then, they may not have units in stock like Way and others carry.

    Matt
     
  14. Bimmer Lite

    Bimmer Lite New Member

    May 5, 2009
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    I definitely wanted to do this, but I didn't have the language/know-how to really guarantee that I was getting what I'd need. So I trusted a middle-man and probably paid more for it. Hopefully it'll work out - all is good so far.

    It hasn't been mentioned yet, but if you want to go the MINI route, the part itself is around $1,700-1,800. :eek:ut:

    - Marc

    edit - to add, I'm noticing lower engine oil temps post-rebuild. No, it's not the cooler weather - I've driven on warm days, too. Could it mean that since my SC was not spinning freely, it was adding more heat to the engine? Don't know...
     
  15. hohokam

    hohokam New Member

    Jun 14, 2009
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    Denton, Texas
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    I have been calling around, getting advice and quotes for the rebuild.
    I have been hearing different thing. I should/i shouldnt.

    I talk to Terry, who talked to Jan; This is what he said

    "the runs on the supercharger started at 35deg C and ended at 67deg C.

    this was by far the highest any of them got. The highest of the others was about 50 C

    it ran up exponentially as the rpm neared redline. This isn't normal"

    So they both Jan and Terry believe its my SC.

    If you have other opinions please let me know.
     
  16. Dr Obnxs

    Dr Obnxs New Member

    Jun 11, 2009
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    Hmmmm...

    That's a 17 C post IC compared to the other cars. While it's not normal, I'm not sure what would do that. The SC is an expensive part, so make sure before you break out the CC!

    Matt
     
  17. hohokam

    hohokam New Member

    Jun 14, 2009
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    Oh yeah i am going to talk to me mechanic, soon. it still runs just "not as well as it could" i am getting 181 hp and 167 tq so thats ok with 78k on hopefully i can make it increase when this thing is all over.
     
  18. mini_racer

    mini_racer Well-Known Member

    May 4, 2009
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    hohokam, did you ever find a SC or rebuild your old one?
     
  19. xalfa

    xalfa New Member

    Nov 24, 2009
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    I think the gain was due to a couple of things, that one included. The crank pulley is a lot lighter and I think the ECU was tweaked as well. FWIW, the early (03-04) JCW SCs also had the same "abrasive" rotor coating.
     
  20. syn3rgy

    syn3rgy New Member

    Jun 6, 2010
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    I also called Dustin at Autoxcooper to get my SC rebuilt. Actually its on its way back to me now. I had to strange noise coming from mine and it ended up being the PTO side of the SC had no oil and the gears began to eat each other.
     

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