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Registered
Join Date: Feb 2006
Location: Oahu
Posts: 2,303
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SC carb conversion--which ignition?
For those who have switched their 80+ sc's to carbs; what did you do to your distributor?
1. nothing, left it alone, and it ran fine 2. sent it out for modification 3. just swapped it out for a 78' or 79' distributor 4. bailed on the distributor and went with different ignition. 5. since the case was apart, changed the drive-gear and used a 004. Not going to split the case, at this time, so the 004 is out. I'm curious, as the opportunity costs are significant. Quotes for distributor re-curving range from $200--$600 + shipping + two-four weeks turn-around time. I thought about the MSD route, but it only offers 20' advance.
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Jon Last edited by shbop; 04-14-2007 at 07:32 AM.. |
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04-13-2007, 10:54 AM
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Work in Progress
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The 80 SC I bought had electromtive crank fire ignition on it. Sometimes you can pick up Tec-1 units and sensors etc relatively cheap on ebay.
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"The reason most people give up is because they look at how far they have to go, not how far they have come." -Bruce Anderson via FB -Marine Blue '87 930 |
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04-13-2007, 11:01 AM
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Join Date: Dec 2002
Location: Dahlonega , Georgia
Posts: 14,606
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83SC- I kept the stock CDI and had the distributor recurved. A good recurve/rebuild will cost $400.00-$500.00.
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2002 Boxster S . Arctic silver + black top/int. Jake Raby 3.6 SS engine " the beast ". GT3 front bumper, GT3 side skirts and GT3 TEK rear diffuser. 1999 996 C4 coupe black/grey with FSI 3.8 engine . Rear diffuser , front spoiler lip with ducktail spoiler . |
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04-13-2007, 12:48 PM
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Join Date: Feb 2006
Location: Oahu
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Thanks for the replies. Has anyone tried dropping-in a 78-79 distributor, with no mods?
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Jon |
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04-13-2007, 02:38 PM
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Registered
Join Date: Jul 2001
Location: Portland Oregon
Posts: 7,007
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Re: SC carb conversion--which ignition?
Quote:
Several options for you: 1) Leave it alone without the vacuum advance. It will run OK but not as snappy in the mid-range as would be possible. Gasolines play a big role here. 2) Have your dizzy recurved to match. This offers the best overall performance since the stock advance curve in an SC is "lazy". I would strongly recommend using an MSD 6AL for all carbureted 911's.
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Steve Weiner Rennsport Systems Portland Oregon (503) 244-0990 porsche@rennsportsystems.com www.rennsportsystems.com |
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04-13-2007, 03:40 PM
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Bruiser
