Original: A V12 with two banks of six cylinders angled at 60 Â or 180 Â from each other has even firing with power pulses delivered twice as often per revolution as a straight-6 .
Simplified: A V12 angled at 45 Â , 60 Â , 120 Â , or 180 Â from each other has even firing and is smoother than a straight-6 .