V12 engine
V12 redirects here. For the V12 Training program, see
V-12 Navy College Training Program. A V12 engine is a
V engine with 12
cylinders in two banks. Like a
straight-6, this configuration has perfect primary and
secondary balance no matter which V angle is used and therefore needs no
balance shafts. A V12 with two banks of six cylinders angled at 60° or 180° from each other has even firing with power pulses delivered twice as often per revolution as, and is smoother than a
straight-6 because there is always even positive net torque output with little variation. This allows for great refinement in a luxury car; in a racing car, the rotating parts can be made much lighter and thus more responsive, since there is no need to use counterweights on the crankshaft as is needed in a 90° V8 and less need for the inertial mass in a
flywheel to smooth out the power delivery. In a large, heavy-duty engine, a V12 can run slower than smaller engines, prolonging engine life.
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V12
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