Join Date: Nov 2000
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Re: Engine configuration\'s effect on torque?
Longer stroke will produce more torque, as it's a function of leverage on the crank. That is independant of inline vs v configuration. Common take on rod length (correct or not?) is that it affects the torque slightly, by having the piston dwell at the top of the stroke longer. V motors are preferred by engineers where compactness is a virtue. As well, mentioned previously, the intake runners are closer together, more equal in length making for better tuning for high rpms (generally=horsepower). An advantage, but challenge, is the crankshaft design on v motors. Producing even firing intervals on a V6 requires separate crank throws, making for a challenge in crank strength. Those cranks don't look at all like V8 cranks, unless you are talking some of the older designs where the rods are side by side for a pairing of cylinders. Inline motors have more distance between the crank throws and are easier to manufacture with bulk between the throws. But their length produces other problems relating to torsional flex and vibration. Seems like everythign is a compromise.
84 CJ7, 258, HEI, M/C 2100 carb, 5 inch lift, RS9000's, 33x12.5 BFG M/T's, 4.56's and Detroit softlocker, full cage & belts, Xenon flares, Dana 44 rear, GM dual diaphragm brake booster