[s-cars] [NurSC] Optimized garret chip... should I be scared

[Calvin Craig]

HAHAHA good one, Teddy.  I just look at it as if the worst happens I have to
upgrade.  Awww, damn! :)
--Calvin

  -----Original Message-----
  From: Theodore Chen [mailto:tedebearp at yahoo.com]
  Sent: Saturday, December 06, 2008 4:49 PM
  To: Calvin Craig; Taka Mizutani
  Cc: vfregeac at gmail.com; s-car-list at audifans.com
  Subject: Re: [s-cars] [NurSC] Optimized garret chip... should I be scared


  .... you've got to ask yourself one question: Do I feel lucky?  Well, do
ya, punk?



----------------------------------------------------------------------------
--
  From: Calvin Craig <calvinlc at earthlink.net>
  To: tedebearp at yahoo.com; Taka Mizutani <t44tqtro at gmail.com>
  Cc: vfregeac at gmail.com; s-car-list at audifans.com
  Sent: Saturday, December 6, 2008 1:48:45 PM
  Subject: RE: [s-cars] [NurSC] Optimized garret chip... should I be scared

  ....and where Teddy had bad reliability with his chipped turbos, I have
had
  good reliability with mine at altitude...so I think it is kind of hit and
  miss.
  --Calvin


  -----Original Message-----
  From: s-car-list-bounces at audifans.com
  [mailto:s-car-list-bounces at audifans.com]On Behalf Of tedebearp at yahoo.com
  Sent: Saturday, December 06, 2008 1:21 PM
  To: Taka Mizutani
  Cc: vfregeac at gmail.com; s-car-list at audifans.com
  Subject: Re: [s-cars] [NurSC] Optimized garret chip... should I be
  scared


  K03s do make more boost with a chip, and there's a big seat of the pants
  difference with the chip.  The issue is durability.  They're small for
quick
  spool, with V8-like throttle response, and already close to their design
  limits with factory tuning.  Spinning them faster, especially at altitude,
  seems to kill the K03s.

  That wouldn't be such a big deal on the UrS4, but replacing the turbos on
a
  B5 S4 requires removal of the engine or dropping the front crossmember.
  It's about $3k labor.  Mine had an APR (sorry, I think I might have said
AWE
  before) chip installed with the 91 octane program, and the turbos needed
  replacing 10k miles later, at 50k miles.

  Now my car has K04s.  There's now some detectable lag, where there wasn't
  any with the K03s, but it's minimal and still much less than the UrS4
  (either K24 or GT2871).  Still running the same chip.  The upper end is
  stronger, as the stock turbos used to fall off noticeably at 5000 rpm,
  whereas the K04s make it to about 6000 rpm.  The boost drop off with the
  K04s is likely due to the chip programming, but I haven't gotten around to
  upgrading anything due to concerns about the Tiptronic.

  -Teddy

  -Teddy

  Taka Mizutani wrote:
  > Vincent-
  > On anything tuned, make sure you get a proper compression and leakdown
  test
  > on the engine.
  > I'd also be concerned about the turbos- what level of boost is that
thing
  > running? K03s don't really do much with a ton of boost except make heat.
  > Were the turbos upgraded?
  > How about the bypass valves?
  > Taka
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