Again, not trying to offend anyone. Just not seeing any answers to my questions. Yes I did read the first post, and actually, you mention power right away (see #2
below..."restricted airflow = power loss"). As I mentioned in my post above, what may seem like a restriction isn't always a restriction. I'm not an engineer so I readily admit I don't have the knowledge to determine what may or may not be effective, even if it seems obvious.
But I've worked with enough engineers over the years to know there's usually some method to the madness. All I'm asking for are some actual, verifiable results in performing this mod aside from balancing a small A/F difference between banks.
AGAIN, I'm not calling you or anyone out. I'm just seeking something more than "feels better" or "seems different" before I take a saw to my engine. I've been tweaking my vehicles for 20 years, and if I've learned anything in that time it's that most of the "free" mods do more harm than good. Not always, but often.
What I'm really interested in with this mod is upping my fuel economy. I saw some mention throughout the discussion but nothing more than speculation. Thus far I'm struggling to break 18 MPG and I'm driving easy with a mix of city and highway. Right now it's winter and my commute is only about 7 miles so I know the car is barely warmed up by the time I get to work, so that figure will certainly go up in spring. But my 5.0 would get 21 MPG with granny 2:73 gears in the winter--I know these Mazdas aren't the greatest on fuel, but I was expecting better than 20 at least.
And if there aren't any verifiable answers, that's fine too. Not trying to start a war :hide: Just making sure I look before I leap.