Re: C-123 HP Question

Posted by Bus Driver on November 03, 2004 at 10:23:05 from (66.226.35.151):

In Reply to: C-123 HP Question posted by Bill in NC on November 03, 2004 at 05:48:50:

I do not have parts catalogs for all the tractors mentioned, but have searched the catalogs I do have for other tractors that used the basic engine block for different aplications with different HP and different operating speeds. I every case, I found that the camshaft was different. The cam does help determine at what speed the maximum torque is developed. Simply raising the RPM may result in only an increase of travel speed at light loads. Case in point, once I frequently drove two different buses supposedly identical to each other. Diesel engines, original RPM max at 2800. Someone had set one of them at about 3200 RPM and on level ground, it would go faster than the other. On steeper hills, each would pull up at the same RPM and speed. The new higher RPM did not change the torque curve of the engine.

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