OT Bowtie eye candy

[Old Guy]

I thought so. Remembered the 60's there were lots of Hillborns, they kinda faded....

I think you are correct, I don't think the Hillborns were OEM on any production cars...but wouldn't be my first time wrong...

[Old Guy]

So here is my chance to bring it up; how feasible would it be to place a powerful speaker in an enclosure, connected to the intake manifold, wired to produce frequencies of 1/2 the rpm of the car engine, since the intake event occurs every other revolution of the crank?

Active muffler using speaker, not the same but worth a read...

Active Noise Cancellation, Diesel Exhaust, Sound Waves, Cancellation, ActiveSilence, Muffler, Noise, Loudspeaker, Eberspaecher | Active noise cancellation applied to diesel exhaust

[bfish]

...how feasible would it be to place a powerful speaker in an enclosure, connected to the intake manifold, wired to produce frequencies of 1/2 the rpm of the car engine, since the intake event occurs every other revolution of the crank?....

For it to have a positive performance effect, the driver would have to exceed the full-stroke piston displacement (bore X stroke). Then you'd need a responsive "check valve" like a 2-stroke reed assembly to facilitate pressurization. Positive pressure turbos can do that way better than any EM motor driver and still fit under the hood. A servo motor driver could do it, but probably not as efficiently for the size.

Nothin' wrong with pipe dreams though!