When I attended the LOBO maintenance clinic hosted by Dave Saylor at his Aircrafters Facility in Watsonville, CA some months back,  I noticed an interesting modification that he had made to a IV-P he was working on.

Instead of routing the cabin air from the 3rd intercooler around the front of the engine over the right turbo on its way into the cabin, he had routed it up over the alternator, across the engine, and directly into the heat mixer box.

I thought that this simple mod might deliver cooler air into the cabin so during my current annual, I rerouted my cabin air ducting and  included some photos of the result.

Comments  welcome.

Regards, Bill Hogarty(billhogarty@hughes.net)