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BoxxerSix BoxxerSix is offline
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Join Date: Jun 2006
Location: Ballston Spa, NY
Posts: 528
You're right bigger isn't always better. But too small is just as bad in many ways as well. Hey feel free to try it out, but I'm telling you they're too small. They choke out in stock format on a super efficient 2.7L as it is anyway....

Here's the c-map for a ko32072 from an S4



It's the turbine you have to watch out for

Here's a Ko42075, what's on that upgraded S more than likely




Those "xxxK" markings on the maps are rotating assembly RPM speeds at that given flow, IE 175K is 175,000RPM.......overspeeding = yes....your typical K27 hits the 100-110K mark at full(stock ~.8bar) boost on your typical 930/965.
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Last edited by BoxxerSix; 11-03-2007 at 02:22 PM..
Old 11-03-2007, 01:03 PM
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