4", as in sized for an oil cooler eh? Hmmm. I'd love to know dynamic pressure values in comparison to a pitot inlet, i.e. a conventional engine upper plenum. If equal, this approach to feeding an oil cooler would be superior. As reported elsewhere, the air picks up a lot of heat in its pass through the plenum on the way to oil cooler.
Last edited by DanH : 03-09-2012 at 04:52 PM.