Sizing a minimum size grill opening.

[spacemanspif]

Can you take some pics? You have basically the design I was thinking and I'd like to see how you did it. Love this project you are doing.

Has anyone ever tested cooling efficiency difference between bottom draw and dam air? I assume boffom cooling is better because it theoretically uses all of the radiator whereas ram air basically only cools the area of the radiator that the air is directly blowing through.

[Cd]

What are the two openings in the bumper ? ( - here they are blocked off. )

[67-ls1]

The two areas blocked off on that number are just stock bumper openings. Probably fir airflow yo the radiator prior to doing much science about where the air was going.
I will block those in mine too.
I am still a ways from actually building an air dam for mine. I still need to get the body back on the frame!

[Cd]

When in doubt, after you block the grille / install an air dam, a tuft test will tell what direction the air is going in.

I was surprised to see the direction of airflow on my car when i tufted it.

For instance, the air just skipped over the channels on my A pillars, versus being channeled over the car. ( The car is a '93 Civic )


I really like the look of your car, style wise. I had a '69 Camaro for short while myself.
Never drove it.