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Registered
Join Date: Aug 2002
Location: Galivants Ferry, SC
Posts: 10,550
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Officially...according to Porsche published data at the time....the Carrera orTurbo tails ( either one) was a bit more effective than the Duck. That said, in practical terms, one would be hard pressed to really feel the difference of these 3 tails unless all your experience is all on the track at over 90-100 mph. Most likely the Turbo was most effective of the 3 styles.
Likewise, Porsche data of the time showed a lowering of engine temps of about 10 degF when using any tail over "none".
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Wil Ferch
85 Carrera ( gone, but not forgotten )
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