[not_hans_stuck]

Mitch,

On these cars, the radiator is laid back. The air passes in the front, crosses the radiator then exits under the car like any other normal car.

The hole in the front pan where the gas tank used to sit is where the air comes out. The back half of that hole is taken up with the new gas can. The radiator and the shroud actually sit over the front half of that hole. The exit hole is a little larger than the entrance hole so the air pressure decreases across the radiator. This reduces the air temp.

In this car, the front bumper has the big oil cooler hole. That hole is slightly smaller than the cutouts through the slam panel and it's lower. When you looked directly into it from the front, most of what you saw was just nothing - air would flow in that hole and then go under the car.

I'm pretty sure it was creating a high pressure area right in front of the radiator, stalling the air out, roiling it under the car. When I left the fans on, it would cool normally, but without the temps would start to climb again. I expect the duct work to eliminate that problem.

Also, the ductwork was always part of the plan because it looked really bad without it. It was just on the second punch list. The one with the AC.

Even without the duct though, it never overheated - just ran hotter than I wanted it to.


Hal