Brian,
I keep learning but here is what I believe at this juncture:
A common manifold equal length system by its self can not stop cylinders from seeing exhaust pulse overlap on a 6 cylinder. --- It is mathematically impossible.
Equal length seems a solid improvement.
A fully split system seems a solid improvement.
Equal length with twin scroll turbine would seem even better.
Subject to there being an ideal split scroll turbo for one's goal and application.
Quote:
Originally Posted by RarlyL8
...The key is to have the plenum divide completely flush with the turbo flange. ..
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Only if there there are divided wast gates and the turbo is a true split scroll design.