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Originally Posted by Bluedog
I have a Comp Cam Hydralic Roller with the following specs:
242 - 248, .645 -.635, 112 degrees LS
I'm not sure what these values represent (from the build sheet) but I'm curious about your opinions whether this is a mild or wild cam. I can get it to idle at 900 RPMs but it "feels" like it would be happier at 1000 - 1100 as I sometime need to pump the pedal keep it idling at 900. In fifth gear, I'm doing about 2600 RPM at 75 mph and it runs great (.82 OD, 3.54 diff)! Thoughts? Thanks!
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Unless I'm mistaken here is what you've got. Out of a 360 degree circle your intake stays open 242 degrees, your exhaust stays open 248 degrees. You've got a little over 1/2 inch of lift on the valves. 645 thousandths of an inch lift on the intake valve, with 635 thousandths of an inch lift on your exhaust valves. With 112 degree seperation between the lobes of the cam or better known as lobe seperation. You'll notice your exhaust valve stays open a bit longer than the intake so that with both valves temporarily open, the burnt gasses are scavenged out of the cyclinder and aiding the incoming charge of fuel mixture. If I'm wrong somebody please correct me and I'll take no offense what so ever. I think I'm on the right track though.
