Radiator orientation when mounting at an angle?

[atomicjoe23]

If you had a front-mounted radiator that was going to be mounted at an angle instead of vertically (due to vertical height restrictions) which way should the radiator be angled? I.e. the top of the radiator tilted toward the front of the vehicle vs. tipped toward the rear of the vehicle.

I ask this because I seem to remember something about some vehicles (a car in this case IIRC) the radiators are angled (due to packaging constraints) but the orientation of the angle takes advantage of a high-pressure area of air below the nose of the vehicle. . .

. . .would that high pressure area be present on most vehicles or is that high-pressure area created by the valance/front spoiler on the front of the car?

Thanks. . .hope I was clear enough. . .

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[racer56]

Tipped back. Make sure your burp tank is the highest point in the system.

[atomicjoe23]

So you are saying top of the radiator tilted toward the rear of the vehicle. . .correct?

Thanks!

Care to expand on why. . .sorry, I like to know the reasons behind stuff and why people are doing what they are doing.

[racer56]

You can mount a radiator in any orientation as long as you have a way to bleed the air out and it is recieving adequate airflow.

Most front engine race cars have radiators that are upright or layed back for airflow and packaging purposes.