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#1
11-19-2010, 08:10 AM
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Raven,
In a nutshell; the smaller cam closes the intake valve "sooner", i.e. with the piston further down in the hole. The piston then rises in the bore longer while both valves are closed (remember, no compression happens until the valves are closed). So cylinder pressure rises. There's tons of stuff here on Dynamic vs. Static Compression and all the associated theory about valve events and under what circumstances you may want to move them and the potential consequences of such a move. HTH, Stu
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"Having a 10 second Civic must be just like coming out of the closet; you'll surprise some people, but you're still gay" 1970 GTO, 455+.034", 0 deck, Wiseco's, Eagle rods, 60919, Rhoads, E-Heads, 1.65 Scorpions, RPM, Custom Qjet by Cliff, Doug's 1 7/8", THM 400, Gear Vendors OD, 3.55s.........Her name is Blandorf; after a girl I knew once, 'cause she's just Bitchin, always. |
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