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930turbo 930turbo is offline
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Join Date: Jul 2006
Location: Valrico Florida
Posts: 199
The fins were not actually ever removed from the turbo cylinders. What happened is Porsche added material to the cylinders that filled in the gaps between the fins which in effect, removed the fins. The intent was to control distortion under extreme heat cycles with additional strength acheived by greater wall thickness.
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'77 930 turbo Garretson I/C 1 BAR spring, (2) '82 Triumph Bonneville Royal Wedding Edition
Past rides: '74 914 1.9 liter twin plugged track car, '83 928S, '87 924S, '75 911S w '78 ROW 3.0, '72 911T, '70 911T and various other insignificant domestic examples. Happiness is a grey tailpipe! Turbo lag......it's worth the wait!
Old 09-16-2007, 11:21 AM
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