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David David is offline
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Join Date: Apr 2002
Location: Houston (Clearlake), TX
Posts: 8,719
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Dean, you're right. There's one vacuum retard curve that shows some retard under pressure but it doesn't retard much and it appears to be for 78 Cali and Japan cars (?).

I glanced at my curve last night and saw 17 BTDC. I just looked closer and realized it's 17 at 8000 RPM where I never plan to go. Mines right around 26 at 6000 RPM.
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2014 Cayman S
2011 Cayenne Turbo
1979 930 (475 rwhp at 0.95 bar)
Old 11-12-2007, 03:02 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #35 (permalink)