What plugs for a euro SC ?

1980SC · 01-28-2002, 09:45 AM

I have a Euro 1980 3.0 with 8.6:1 compression. Engine code 930/09. Does anyone know what sparkplugs I should use? The car presently has a set of Bosch Platinum WR5DP. My Bently manual says to use WR7DP in SC's, but this manual is meant for cars sold in the U.S. Anyone know? I do not have access to an owners manual.

-Thanks,
Rob
1980SC

81SC · 81SC's Garage

Rob According to Haab's authenticity book your Euro (ROW)1980SC should have 9.8:1 compression ratio with engine type 930/09.Recommended spark plugs for your car are Bosch-W200T30 and Beru-200/14/3A. Hope this helps.

robs · 01-29-2002, 06:04 AM

The factory manual lists BOSCH W4CC spark plugs for a Euro 1980 model year 3.0 SC, 188 DIN hp, no catalytic converter. However, the selection guide at www.bosch.de recommends W3CP spark plugs, but I think they are too cold for street usage.

1980SC · 01-29-2002, 11:00 AM

Thanks for the info guys. There are just too many choices of plugs out there !

According to the Porsche 911 Performance Handbook the 1980SC ROW had 8.6:1 compression and 188hp with the 930/09 engine.

Not until the '81-'83 ROW 911SC's did they get 9.8:1 and 204hp with the 930/10 engine. I bet they are noticeably quicker then mine.

Thanks,
Rob