The 6.1L engine can be expected to collect some oil residue in the intake manifold over time and this is heavily influenced by how hard the engine is used. The fact is that oil residue in the manifold is extremely hard to get "aerosol" such that it can be burned as part of the combustion process given the intake runners pull from the roof of the intake plenum and the residue is typically at the very bottom.
Generally speaking, catch cans are more of a mental pacifier than anything and any positive performance impact is virtually impossible to quantify. In such a case, you really need to go with your gut, but we can find no overwhelming reason to recommend this modification.
Quote:
Originally Posted by MoparX
First off I would like to thank you folks for taking some of your time to share with us.
I own a 2009 Challenger SRT8, 6 speed. It is the best car I have ever owned in every way. And I've had quite a few.
My question regards to the use of catch cans. Are they really worth it, for keeping the intake/engine clean. Its been suggested that the 6.1's get a little "more" oil into the intake past the PCV valve than really wanted and therefore possibly causing some detonation & causing the computer to retard the timming, therefore stealing some HP's.
Is this BS, or is it worth the addition of a catch can?
Thank you again for designing a GREAT ride..
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