Originally Posted by jasamb
What do velocity stacks do??
Velocity stacks help to reduce turbulence and increase airflow into the engine. It should allow for more air to flow into the intake that without them creating more pressure and pushing more air/fuel into the engine there by giving more power. Of course, without an air filter and exhaust with a higher flow rate than stock, they're kind of useless. I ordered some from Graves that should be here this wek. Plus my Blue Flame 3D Silver Carbon slip on came yesterday and my BMC Race air filter should be here next week sometime. To bad it's to cold out to go test it with the mods going on. Hope to get a powercommander over the winter and then come spring time, a custom map for it.
You've probably seen them one custom choppers before ala.....
with the megaphone style billet piece being the V Stack..
one with an air filter....
these are what the Graves stacks look like inside the airbox......