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Registered
Join Date: Oct 2008
Location: Nash County, NC.
Posts: 8,522
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3.2 to PMO carbs
It has been over 20 years since I carbed a 3.2. My memory tells me I moved up the stock cams to 2.5mm, can I get a verification on that because sometimes the mind goes weak.
Bruce |
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11-28-2010, 12:51 PM
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Registered
Join Date: Oct 2008
Location: Nash County, NC.
Posts: 8,522
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just looking for the info....
Thanks, Bruce |
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12-06-2010, 05:16 PM
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Join Date: May 2003
Posts: 3,346
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Bruce,
I haven't done this but here are my thoughts. Big port SC motors used retarded cam timing to get power at the top end. Those of us racing carbed SC motors use the retarded settings also for the same reason. 3.2 engines have limited top end power with the standard Motronics due to intake restrictions. If I were to carb a 3.2 I'd retard the cam timing to get more top end. This means I'd set .9 to 1.2 mm with stock cams. -Andy
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72 Carrera RS replica, Spec 911 racer |
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12-07-2010, 06:55 AM
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Join Date: Feb 2007
Location: Northeast
Posts: 464
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I'd second the 1.2 number
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Mark www.exotechpower.com 1981 Targa-messed with. 91 C2 supercharged track rat Radical Prosport-irritates the GT3 guys 40 years of rebuilding services |
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12-07-2010, 09:38 AM
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