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Old 01-03-2013, 02:04 AM   #1358
Marnix
Scooby Specialist
 
Member#: 51480
Join Date: Dec 2003
Chapter/Region: International
Location: The Netherlands
Vehicle:
1984 AM5, 1994 BC4,
2010 BR5

Default

EG cams do not fit EZ cams.

The lifters are exactly the same as what Porsche uses on the 997 engines, it even has a Porsche partnumber on it:















According to Wikipedia, these Porsche engines use the Variocam Plus system:

2006-2008 3.596 litre 325 hp water-cooled flat-6 (VarioCam Plus) (911 997 pre-facelift Carrera series / Targa 4)
2006-2008 3.824 litre 355 hp water-cooled flat-6 (VarioCam Plus) (911 997 pre-facelift Carrera S series / Targa 4S)
Carrera S powerkit: 3.824 litre 385 hp water-cooled flat-6 (VarioCam Plus)
2007-2009 3.600 litre 480 hp water-cooled flat-6 (bi-turbocharged) (VarioCam Plus) (911 997 pre-facelift Turbo)
2008-2010 3.600 litre 530 hp water-cooled flat-6 (VarioCam Plus) (911 997 pre-facelift GT2)
2008-present 3.614 litre 345 hp water-cooled flat-6 (VarioCam Plus and DFI) (911 997 facelift Carrera series / Targa 4)
2008-present 3.800 litre 385 hp water-cooled flat-6 (VarioCam Plus and DFI) (911 997 facelift Carrera S series / Targa 4S)
2010-present 3.800 litre 530 hp water-cooled flat-6 (bi-turbocharged) (VarioCam Plus) (911 997 facelift Turbo S)
2010-present 3.600 litre 620 hp water-cooled flat-6 (bi-turbocharged) (VarioCam Plus) (911 997 facelift GT2 RS)

So if you can find the valve lift or cam lobe height of those engines you know what the lifters can handle. For sure you should upgrade the valvesprings when running more lift.
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