Thread: cam
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Old 10-07-2002, 09:04 AM   #10
Ron1
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Join Date: Sep 1999
Location: Vancouver, WA USA
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Make sure you clay that puppy after you install that new cam. You may have piston to valve clearance issues. With a change in lift, you might just drive the valves through the tops of the pistons. May need to flycut the slugs.
What do ignition and gear ration have to do with anything? Well lets see, if you use an inadequate ignition, as compression changes cylinder pressure may just keep a spark plug from firing. Cylinder pressure "blows" out the spark. That's why we have MSD and others.
Gear ratio's..where do I start. It is the cheapest "HP" you can buy. By changing from a 3.00 to a 4.11 it will feel like you just added 100 HP, but the engine will RPM a lot quicker and you may "run out of gear". With a 3.00 gear freeway RPM, lets say at 60 MPH is 2000 RPM, with a 4.11 it will be 3500 RPM at 60 MPH. (These are not accurate numbers).
Run your car at 3500 RPM for a long time and it will wear out really quick.

Ron
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