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Registered
Join Date: Mar 2002
Location: New Hartford, NY
Posts: 740
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euro sc timing
Hi, I am confused. I am looking for the correct idle speed timing for a 78 euro 3.0L, type 930.03 motor. Is it 5 degrees BTDC or 5 degrees ATDC. Waynes new book lists BTDC but others on this BBS say ATDC. Also my pully has a notch 5 degrees to the right of Z1(clockwise of Z1). I assume this notch is correct for idle timing which I think is BTDC? The motor is transplanted into a77 911S so I have no stickers on 77 to correspond to the SC motor. Thanks for any info, Jerry.
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06-19-2003, 08:06 PM
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Join Date: Jun 2003
Location: St Petersburg, FL
Posts: 3,814
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Ignition timing is ALWAYS BTDC.
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06-19-2003, 08:23 PM
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Join Date: Sep 2002
Posts: 513
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Ignition timing is normaly BTDC but not always. I had a car years ago which was 5 or 10 deg ATDC (I think it was a TR250).
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'69 911E 2.7MFI ;996TT;987.2 CaymanS '71 Volvo P1800E wife's; AMG SLK wife's '71 Volvo race car 944S; 986S ; 734WHP drift car (son's) |
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06-20-2003, 04:22 AM
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Registered
Join Date: Mar 2002
Location: New Hartford, NY
Posts: 740
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I thought my 77 2.7L was ATDC? However, my may concern now is the proper timing for the euro 3.0L. Thanks, Jerry
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06-20-2003, 04:28 AM
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I have a 1980 Euro 3.0L, timing decal calls for 5 degrees BTDC at 950 RPMS.
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John Adams 1980 ROW 911SC |
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06-20-2003, 05:51 AM
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1980 Porsche ROW 911SC 3.0L
