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Wer bremst verliert
Join Date: Jan 2005
Location: Toronto, Ontario
Posts: 4,767
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ID this cam please?
This is from a 2.2 that was built into a 2.7 by a previous owner who advertised it as having solex cams.
I am rebuilding the motor to fix some leaks and freshen things up. The cams are stamped "Webcam 96 104 102" I think 1996 was the year of the rebuild so that might be a date stamp. Webcam doesn't advertise a 104/102 grind. They do list a 104 grind as "Strong mid and upper end performance for large displacement turbo engines. Some loss of idle and low end performance." Here's their build list: Web Cam Inc. - Performance and Racing Camshafts. I haven't had a chance yet to install and measure lift. Anyone able to say what this cam is, perhaps confirm as Solex? Sorry the pic is so blurry, I couldn't find the camera so had to use the blackberry. Thanks! 
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2007 911 Turbo - Not a toy 1985 911 Cab - Wife's toy 1982 911 3.2 Indiash Rot Track Supercharged track toy 1978 911 3.0 Lichtbau toy "Gretchen" 1971 911 Targa S backroad toy |
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10-13-2013, 06:16 AM
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Wer bremst verliert
Join Date: Jan 2005
Location: Toronto, Ontario
Posts: 4,767
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Here are the intake and exhaust valve lifts for the cams, with zero lash:
Intake: 11.27mm 0.4444" Exhaust: 10.16mm 0.400" This doesn't match what specs I've seen for S or Solex or any oher cams. Any help?
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2007 911 Turbo - Not a toy 1985 911 Cab - Wife's toy 1982 911 3.2 Indiash Rot Track Supercharged track toy 1978 911 3.0 Lichtbau toy "Gretchen" 1971 911 Targa S backroad toy |
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10-14-2013, 04:12 AM
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Registered
Join Date: Oct 2008
Location: Nash County, NC.
Posts: 8,503
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Call WebCam, thats the easiest thing and the secretary will tell you.
Bruce |
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10-14-2013, 10:56 AM
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Registered
Join Date: Jul 2006
Location: S. Florida
Posts: 7,249
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Yup, and you might get Laurie the owner if she's still owner.. and she'll tell you everything you want to know about them.
They always answer the phone... google Webcam camshafts. |
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10-14-2013, 12:50 PM
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Wer bremst verliert
Join Date: Jan 2005
Location: Toronto, Ontario
Posts: 4,767
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I got Faith, who provided the following information in moments;
Valve Timing Information Engines: Porsche 911 SOHC 12v Porsche 930 SOHC 12v Porsche 964 SOHC 12v Part # 05-071 ; 05-072 Grind # 104/102 SET @ 4.2 - 4.6 MM WITH .1 MM LASH INTAKE EXHAUST Valve Lash: .004" .004" Valve Lift: .450" .408" Duration: 270° 254° Duration @ 0.05: 250° 236° Lobe Center: 97.5° 97.5° ________________________________________ Intake Opens 27.5° Before TDC Exhaust Opens 35.5° Before BDC ________________________________________ Intake Closes 42.5° After BDC Exhaust Closes 20.5° After TDC ________________________________________ Valve timing is checked with zero valve lash @ 0.050 inches of valve lift. ________________________________________ You can find complete instructions on how to degree in your cam shaft on our website: Web Cam Inc. - Performance and Racing Camshafts She said its their Solex grind. Its different than what DR lists for Solex. I haven't checked Bruce's book yet. timed to 4.45 left and 4.44 right sides.
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2007 911 Turbo - Not a toy 1985 911 Cab - Wife's toy 1982 911 3.2 Indiash Rot Track Supercharged track toy 1978 911 3.0 Lichtbau toy "Gretchen" 1971 911 Targa S backroad toy |
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10-14-2013, 01:15 PM
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