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Registered
Join Date: Apr 2009
Posts: 8
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aero dynamics
Does anyone know how much the front and rear spoiler help arodynamics on the early modes 928s
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04-08-2009, 11:15 AM
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According the my copy of the 928 performance portfolio, the early (non-spoiler) models had a coefficient of drag of .42 and the S model with spoilers (both) reduce that to .39. The S4 later reduced that to .34. Hope that helps.
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04-08-2009, 05:52 PM
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This is actually some good info as I was wondering the same.
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1981 Porsche 928 "Euro" Auto Gunsmoke Metallic Flat - Black Interior 1983 Porsche 928S "US" Auto Light Bronze (Copper) Metallic - Brown Interior **SOLD** 
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04-09-2009, 06:59 AM
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1987 Porsche 928 S4 5L
