Mar 3, 2019 · Current cranking compression is 160-175 psi and cam is installed straight up. Cam is Crower's 294 FDP solid with 243/245 @ .050 521/528 lift 112. Was thinking of advancing …

The following tables illustrate how variations in lobe separation angle and cam timing will effect the behavior of the engine in which the camshaft is installed.

The effective pressure is now higher than the original figure in the stock motor: 182 psi absolute (168 psi gauge pressure). This is not as effective as it may appear, as the high cylinder …

Mar 5, 2019 · Both lost cylinder pressures and did nothing but kill power everywhere and lost significant top end by retarding the cams. First one was a 10.3 compression 357" with comp …

Jul 26, 2014 · Advancing the cam timing will raise your DCR and change the compression degrees vs power degree duration bias of the camshaft. In Don Terrills book 'The HP Chain", …

Feb 1, 2014 · If what you want is maximum cylinder filling at 150 RPM, then just keep advancing the cam until intake P/V = zero, or IVC is at BDC, which ever comes first. If on the other hand, …

Almost all high-performance cams use extended (later) intake valve closure as a method of increasing peak power. Late (radical) intake valve closure causes some mixture to escape …

Sep 12, 2005 · Camshaft selection is dependent on the engines static compression ratio. A camshaft can effect dynamic compression ratio (cylinder pressure). There are allot more …

Apr 21, 2010 · Compression pressure is determined by the intake valve closing point and the static compression ratio and/or boost. (We don't want to get into rod length.) This is another …

Feb 7, 2002 · Increasing Valve Lash (Smaller Valve Clearance or "Tighter" Lash) - will increase cylinder pressure at low to midrange RPM's, close the intake valve sooner, and reduce cam …