[mikeemans]

Has anybody done work on the classic 80's Chevy vans? I've two of them (both 1990, one V6 and one V8) in Kuwait with a number of plans to play aero, however doing the underbelly I thought would give good gains, not? The van's floorpan is really a raft of cross members that stand out (or point down) like sails! I also plan to redirect air into the front wheelwells by opening the headlight housings, replacing the lights with small diameter lens-type headlights.

Of all things, I found dumping the clutch-fan (radiator fan) in favor of an electric fan (Volvo S80) not only resulted in massively eliminating engine vibration, but I also noticable improvement in performance, hence economy.

On the V6 I've added a windshield (?) between the bumper and the front axle crossmember, and the result was tangible.

Mike