Nice thread. However you gents may be underestimating the effort the Engineers at Ford put into our air boxes. I have spent a few years trying to make stock powertrains make more power on cars, trucks and now even RVís.
Iíve had some wins and a few losses. Just from my expierence I am guessing the baffle in the air box we are looking at creates a resonant chamber. Swirling air, and sound waves can add or subtract from flow. Intake tuning takes as much effort as exhaust tuning.
I have tried a few cold air intakes, K&N filters, 4Ē open exhaust, big turbos, tuning chips, etc. like I said some wins and losses. Fouled sensors and lots of intake and exhaust noise were often the most notable effects. Not sure I ever added enough torque from those mods to be worth the troubles and headaches from intake and exhaust drone up long grades.
Iím not rich or crazy enough to bore and stroke my 1 year old V10, so I am going leave the baffle in the air box for now. Itís quiet and makes pretty good power. Iím thinking that baffle and small vent is helping to reduce some ugly noises at certain throttle positions and RPMís. It could also be adding some spin or reducing tumbling of air flowing through the box?
The V10 has always had a raspy exhaust note. Donít want those kinds of noises up front and close to my ears on a long drives.
I would enjoy hearing if someone finds any magic modding the factory air box. Most of us have to measure by ďseat of the pantsĒ feel. But you never know. I try to stay open minded about mods. Iím still a hot rodder at heart.