Quote:
Originally Posted by Evan135
Why not? If you look at an I6 as two I3 engines bolted together and you let each back of 3 cylinders run each twin scroll, similar to how the N54 is set up with a single scroll, all you have to do is have an exhaust that is split or have a varible tract for each bank of 3 cylinders.
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The purpose of a twin-scroll setup is to completely separate exhaust pulses from different pairs/sets of cylinders and use some of the gained energy (that would be lost if the cylinder exhaust paths would communicate) to feed the turbocharger with more efficiency. If you mix the pulses from 3 cylinders before splitting them up again to feed the twin-scroll, you cancel the twin-scroll concept.