May 01, 2013  · Camshaft – High Lift and Duration – Increase Horsepower Engineering Explained. Loading. Engine camshaft animation (500-7000 rpm at the end). The Darts don’t seem to be selling. Not for $23,000, and not with a manual transmission. Now the Wall Street Journal is chiming in. “Too Many Stick Shifts Hurt Dodge Dart Sales” they say, and for proof they offer the statistic that 974 Darts. Rod Length for…