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Which spark plugs to use.
I have a 1975 911S with the stock bosch cdi box,stock coil and rotor and cap.I have the 40IDA webers also,which plug should I be using,the plugs currently being used are Bosch W7DC Super RD.Thanks
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Brent Lineker 1975 911S weber conversion. |
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08-20-2007, 01:28 PM
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Join Date: Jul 2001
Location: Portland Oregon
Posts: 7,007
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Brent:
Use either Bosch W5DC, W5CC (silver) or NGK BP-6ES. Bosch 7's are too hot for driving and best used to adjust the Webers when it must idle for periods of time,... 
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Steve Weiner Rennsport Systems Portland Oregon (503) 244-0990 porsche@rennsportsystems.com www.rennsportsystems.com |
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08-20-2007, 02:32 PM
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Regis turd ab user
Join Date: Dec 2006
Location: Tacomatose, Wa USA
Posts: 1,489
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Ditto on Steve's recommendation, it's what I'm using, 74' 2.7, Weber 40 IDA's, gapped at .032"
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08-20-2007, 02:41 PM
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Thanks Guys I appreciate the advice.
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Brent Lineker 1975 911S weber conversion. |
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08-20-2007, 02:49 PM
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