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Join Date: May 2005
Location: norcal
Posts: 384
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re curving dizzy?
Hi Guys,
I'm pretty new at this but is there a DIY on recurving your distributor? I heard you can recurve a 3.0 by 28 degrees and was wondering if someone can advise me the right direction to someone who can (to send out). Also is there any threads to understand more about this? Been trying to find one in the search forums but having a hard time. Many thanks. 
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05-25-2010, 10:11 AM
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Send it to Barry Hershon in Detroit. He is hands down the best on these. He will also rebuild it, which it will need unless its been recently done. The latest PMO Advertisement in Panorama and Excellence has his information.
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83 SC Targa -- 3.2SS, GT2-108 Dougherty Cams, 9.5:1 JE Pistons, Supertec Studs, PMO ITB's, MS2 EFI, SSI's, Recurved Dizzy, MSD, Backdated Dansk Sport Stainless 2 in 1 out, Elephant Polybronze, Turbo Tie Rods, Bilstein HD's, Hollow 21-27 TBs, Optima Redtop 34R, Griffiths-ZIMS AC, Seine Shifter, Elephant Racing Oil Cooling. |
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05-25-2010, 10:30 AM
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Join Date: Jul 2001
Location: Portland Oregon
Posts: 7,007
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Quote:
One needs a distributor machine to measure and set the advance system up. Further, if your distributor bushings are worn, Barry can install new ones as well. Call Barry at (313) 532-5350 and tell him I sent you.
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Steve Weiner Rennsport Systems Portland Oregon (503) 244-0990 porsche@rennsportsystems.com www.rennsportsystems.com |
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05-25-2010, 11:15 AM
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Thanks Steve!
Quote:
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83 SC Targa -- 3.2SS, GT2-108 Dougherty Cams, 9.5:1 JE Pistons, Supertec Studs, PMO ITB's, MS2 EFI, SSI's, Recurved Dizzy, MSD, Backdated Dansk Sport Stainless 2 in 1 out, Elephant Polybronze, Turbo Tie Rods, Bilstein HD's, Hollow 21-27 TBs, Optima Redtop 34R, Griffiths-ZIMS AC, Seine Shifter, Elephant Racing Oil Cooling. |
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05-25-2010, 11:28 AM
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Registered
Join Date: Jan 2002
Location: VA
Posts: 3,573
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Steve, does Barry also convert distributors to mechanical advance?
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'06 Cayman S '16 Cayenne '08 Audi RS 4 |
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05-25-2010, 11:49 AM
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Location: norcal
Posts: 384
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Thanks guys! This is the first time I'm doing something this technical. I've only done: brakes, suspension, plugs, oil changes, fluids, accumulator, frquency valve, etc. I'm not a handy man but I can do the basics. So since this is the first time doing this I was wondering if someone help me with these few questions.
1) I'm running a 3.0 from an 80 in my 74 911. all stock except a cat bypass and muffler. Since it has CIS still I was advised to recurve only 28 degrees. Does that make sense? Something about CIS running too lean for an agressive curve. 2) I don't plan on getting carbs so does 28 degrees seem right? 3) I'll be sending out my distributor to get it done but the cap/rotor are all new. After getting it recurved how do I reinstall it? Sorry for the stupid questions but want to make sure I do this right. What is the step by step prodecure? If anyone has a thread for this where I can review? 4) All your advice is greatly appreciated.
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05-25-2010, 12:45 PM
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Yes.
He did mine. Quote:
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83 SC Targa -- 3.2SS, GT2-108 Dougherty Cams, 9.5:1 JE Pistons, Supertec Studs, PMO ITB's, MS2 EFI, SSI's, Recurved Dizzy, MSD, Backdated Dansk Sport Stainless 2 in 1 out, Elephant Polybronze, Turbo Tie Rods, Bilstein HD's, Hollow 21-27 TBs, Optima Redtop 34R, Griffiths-ZIMS AC, Seine Shifter, Elephant Racing Oil Cooling. |
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05-25-2010, 12:55 PM
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Join Date: Dec 2002
Location: Dahlonega , Georgia
Posts: 14,665
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Jerry Woods in CA. did one of mine. Barry did the other. Be prepared for sticker shock as each charged aprox. $500.00 for full rebuild/recurve/etc. for my 3.0's with carbs. I am happy with the performance of both.
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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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05-25-2010, 01:33 PM
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Mine was $550 with Barry... But came back like brand new. If it lasts 100k miles... that about another 25 years... not bad when put like that...
Quote:
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83 SC Targa -- 3.2SS, GT2-108 Dougherty Cams, 9.5:1 JE Pistons, Supertec Studs, PMO ITB's, MS2 EFI, SSI's, Recurved Dizzy, MSD, Backdated Dansk Sport Stainless 2 in 1 out, Elephant Polybronze, Turbo Tie Rods, Bilstein HD's, Hollow 21-27 TBs, Optima Redtop 34R, Griffiths-ZIMS AC, Seine Shifter, Elephant Racing Oil Cooling. |
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05-25-2010, 01:43 PM
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Senior Advisor
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For less than half that price you can convert to an electronic distributor-less system and program your own vacuum "curve". and enter the 20th century! (Ok, I still have carbs). All you need is a laptop.
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08 Cayenne Turbo |
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05-25-2010, 02:30 PM
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Location: norcal
Posts: 384
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Quote:
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05-25-2010, 02:35 PM
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Senior Advisor
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Look up EDIS on here and on the web
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08 Cayenne Turbo |
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05-25-2010, 03:21 PM
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Barry Herscon also did mine 313 532 5350. Running great 50k mi so far.
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78SC coupe, Silver Metallic |
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05-25-2010, 05:03 PM
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Join Date: Jul 2001
Location: Portland Oregon
Posts: 7,007
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JMHO, but carbureted cars using distributor-triggered MSD's run FAR better than the ubiquitous EDIS systems do.
Send that thing to Barry and it will come back like new. Bee sure to tell him your engine specs, what octane fuel you use, and it will drive out much better than stock.
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Steve Weiner Rennsport Systems Portland Oregon (503) 244-0990 porsche@rennsportsystems.com www.rennsportsystems.com |
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05-25-2010, 05:12 PM
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Senior Advisor
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FAR better? with mechanical advance and like an AL ignition box, and good wires.
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08 Cayenne Turbo |
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05-25-2010, 06:07 PM
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Silver 911SC
