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Registered
Join Date: Feb 2012
Posts: 246
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Mod-S cams and different numbers
Hi you all.
I have a couple of questions regarding different specs on Mod-S camshafts for old Porsche 911 SOHC 12 valve engines. Anyone know why the numbers vary between the different makers, Elgin, Webcamshafts, Dougherty etc.? Are there more than one type of Mod-S grind out there? Regards Eskild Norway |
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02-22-2016, 09:57 AM
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Schleprock
Join Date: Sep 2000
Location: Frankfort IL USA
Posts: 16,639
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I believe Dougherty's Mod-S is the DC40. I think Webcamshafts Mod-S is the 120/104
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Kevin L '86 Carrera "Larry" |
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02-22-2016, 10:17 AM
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Registered
Join Date: Apr 1999
Location: Queen Creek, AZ
Posts: 994
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The Webcam mod S is a 464/465.
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02-22-2016, 11:11 AM
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Bland
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I have the DC40 ModS cams in my 2.7.
Very flat torque curve and only 5HP off the peak of the engine in Magnus' 277 car. More power at lower RPM though, both running Webers with 34mm venturis.
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06 Cayenne Turbo S and 11 Cayenne S 77 911S Wide Body GT2 WCMA race car 86 930 Slantnose - featured in Mar-Apr 2016 Classic Porsche Sold: 76 930, 90 C4 Targa, 87 944, 06 Cayenne Turbo, 73 911 ChumpCar endurance racer - featured in May-June & July-Aug 2016 Classic Porsche |
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02-22-2016, 11:15 AM
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Crop Duster
Kachow
1976 Porsche 930
