[Biturbos4] All causes to turbo failures known?

Andy Turner andy at palomar.demon.co.uk
Thu May 13 04:45:21 EDT 2004

On Wed, 12 May 2004 20:44:29 -0400, "dap128" <dap128 at hotmail.com>

>You are mostly correct.  There are many people using K04s on stock or K03
>chipped ECUs with no problems whatsoever (myself included).  The K04 is only
>slightly larger than the K03 (which is TINY!!!) so increased lag is minimal.
>At most, spoolup is delayed 500 rpm, most likely less.  You'll still have
>full boost before 2500 RPMs with the K04s.  Also, the K04s larger size and
>better efficiency at chipped boost levels (K03s are really at the max and in
>some cases beyond the limits of their capabilites with a chip) means that
>you'll get slightly improved on-boost performance due to slightly more
>airflow and slightly less heat.  There really is no downside if your stock
>turbos have failed.

Is there a market for the K03's? I mean, does it make more sense to
get a pair of K04's whilst the K03's are still OK, so as I can sell
them on, rather than wait until they blow and have to throw them away?


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