BertP wrote:Again, giving the CTD a tranny with a single 1:1 gear was just to show that the output numbers of an engine are not the only factors in determining the outcome of a challenge. If you want the dual to be fair, then you must allow both veh...
hemi-kz wrote:Tater,You may be on to something.Any industrial equipment I've used (air compressors, welders, etc)has a "Duty Cycle" rating.Maybe the CTD can put out not more max power, but max power for a longer time.Good point. That would make sens...
BertP wrote:Sort of. What is important is that you allow the engine to develop its max power at whatever rpm that is. If we did a pull-off between two trucks - one with a CTD and the other with a Hemi - pulling a 20,000 lb trailer, which would win?...
hemi-kz wrote:Anyway, my thought is the diesel is probably better at getting a load moving because its power is at an RPM that is closer to the zero RPM of the axle.Does that make sense?Sure, but that means that you are saying a truck with a lower HP...
BertP wrote:They are not the same. Engine rpm to axle rpm:Hemi: 3:1 * 4.1:1 = 12.3:1 overall ratioCTD: 2.45:1 * 3.73:1 = 9.14:1 overall ratioAt max power rpm: (I believe that the Hemi develops its max power at 5000 rpm)Hemi: 5000/12.3 = 406 axle rp...