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Best cam?
What is the best cam for this engine? (Currently using GE-60) Is there a better cam for this configuration? I have to stay at least at 6800 RPMs to make good power. What is everyone else using?
Vintage race car: 914-6 2.7 S-Heads (Twin Plug) 11.5:1 Pistons Headers Weber 40's (160 Mains, 36mm Choke Tubes, F3 E-tubes, 170 Airs) Race Gas Trans with short gears Dry Sump Thanks David
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1970 914-6 GT Track Car 1974 IROC Track Car 1987 911 Targa 3.2 2008 BMW X5 |
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03-01-2010, 01:10 PM
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Join Date: Feb 2004
Location: California
Posts: 926
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If I understand your correctly, you are having trouble making power below 6800 rpm?
The GE60 cam should have a 4800 rpm and up powerband in this engine. I would check the camshaft timing and make sure they are set at 5.0mm +/- .2mm. A late setting (4.0mm or lower) can move the powerband up and kill torque. You might also swap out to a 34mm venturi's in the carbs. Have you run the car on a chassis dyno?
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John Dougherty Dougherty Racing Cams |
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03-01-2010, 07:32 PM
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1974 RSR
