Why does my car run better with can tune compared to CMR?

[06MonteSS]

06 Charger... a Catch Can won't do anything for ya at all, so don't worry about that... you have issues elsewhere...

[whatever_weirdo]

hey heminator where have you heard of me and your my neighbor to are you the one over last nite with steve,paulie,and tommy when i dynoed my srt8 with e85
anyhow i fixed his tune files his afr was 9-9.5 so lean im suprize he made it down the track i set his fuel air to 12.3
he hasnt called me to see how it ran i want it on the dyno so i can film
it for my website
peace

[Mike_Levy]

06 Charger... a Catch Can won't do anything for ya at all, so don't worry about that... you have issues elsewhere...

Have you ever been inside a Hemi intake? Full of oil. A catch can helps immensely. I have 2 of them and can easily catch a quart of oil in 3000 miles.

[Quick]

06 Charger... a Catch Can won't do anything for ya at all, so don't worry about that... you have issues elsewhere...

The hemi's (especially the 6.1L), like the LS engines, are prone to pulling oil/oil vapors through the pcv system. It condenses and collects in the manifold and will make it more susceptible to ping as it gets burned. Myself and 5 or 6 others have tracked the oil collected over a lot of miles. 10 ml per 500 miles is pretty consistent on the stock motor.