I've been wondering what makes one engine have more torque than another. I understand that the computer chip programming on two identicle engines might make a difference, but more significantly what makes a 'truck' engine vs. a 'car' engine?
Or why does an old school 'in-line' straight 8 have more torque than a V8? (assuming it really does)
Is more torque developed on a shorter stroke with a larger diameter bore rather than a longer stroke with smaller bore but equal displacement? Which engine in this example would you want to run 'all day' on?
Is there a diminishing return on number of cylinders vs increasing bore diameter on a fewer number of cylinders to achieve the same displacement? What would be the benefit of each?
What advantage is the Boxer Engine's opposing cylinders vs. a V shape etc.?
How do Vario Cam's mechanically adjust timing when responding to the computer's input?
I'm sure all of this is really fundamental to understanding engine design, so maybe my real question is: can you point me to a good technical link on understanding engine design please?
Bryan