[Alvin]

"The Devil in the Details"

[myam]

BOY Alvin I'm starting to think you should have a degree in air flow dynamic's !

[Alvin]

Originally Posted by myam

BOY Alvin I'm starting to think you should have a degree in air flow dynamic's !

uh-huh... And for more 1973 Pontiac hood "air flow dynamic's" advertisement reminder see below



Was there ever a similar 1973-1977 ABody Pontiac advertisement?

[rexs73gto]

Any info is good info when it come to our cars. Knowing this though blows me away. I knew they put all those scoops on the formula one cars for a reason but didn't know why. Now we do. Thaks Alvin.

[rexs73gto]

Any info is good info when it come to our cars. Knowing this though blows me away. I knew they put all those scoops on the formula one cars for a reason but didn't know why. Now we do. Thanks Alvin.

[myam]

One still has to remember that what comes in. Still has to go out at a equal rate.

[Alvin]

Originally Posted by MikeNoun

Horst, Tim has the blueprints. He asked me to post a few pics of the type of material they have at the museum. I have a lot more blueprint pics, some closeups.

The blueprint of the hood scoop was drawn 01/21/72 (name hard to read).
The blueprint of the tub was drawn 01/24/72 by R. Hutchinson.
The blueprint of the solenoid was drawn 05/30/72 by J. King.

I downsized the pics of Tom's air cleaner for you guys.

While catching up on watching a DVR'd Trans Am race from past weekend, an ad for "3-Dimensional Group" http://3dimensional.com/index.jsp was shown, and I thought it was too bad w all of the available dwgs complete systems couldn't be made by a firm like them with their tag line:

'Ask yourself two questions. Are you behind the curve in product launch? Do you have a design that just doesn’t seem to be working? If you’re having difficulty answering these questions, chances are the 3-Dimensional Services Group has the solution. We’re experts in bringing part concepts to reality and laying design challenges to rest. We design and build prototypes with manufacturing intent in mind, and we do it faster than you can imagine. We also provide low-volume production runs. As you navigate our site, you’ll see why we are "the unbelievable prototyping company."'

[rexs73gto]

MYAM thats not really correct. You can put more out then in as far as air , thats why the exhaust valves are smaller. You can get more air out then in with the same or even smaller amount of room.

[myam]

Is it possible to under carb a ram air system? Maybe not achieve the full potential of your engine? (650 cfm/800cfm)? Maybe that's what I'm confused about.

[rexs73gto]

Yes it's very easy to have to little carb & that way you will run out of gas when you need it to feed the engine properly.

[Alvin]

I just love this hood detail drawing, especially since it's what was designed for our 1973 Grand Am

[Alvin]

Originally Posted by Alvin

I just love this hood detail drawing, especially since it's what was designed for our 1973 Grand Am

And how Pontiac built them below

[Alvin]

Originally Posted by Alvin

uh-huh... And for more 1973 Pontiac hood "air flow dynamic's" advertisement reminder see below



Was there ever a similar 1973-1977 ABody Pontiac advertisement?

Here's the earlier version (IIRC - '70 or '71?) of the Wangers type of advertising I remember as a kid - all hyped and hopped up on Pontiac performance!

Reason for this post? Note the 1971 advertised "Positive Pressure Area"...below vvvv

[Alvin]

That said - love to see all of this happen soon. Thxs to all for your efforts to make it happen.

Edit: The Subject Hood Design Deserves to be included here, yes?



Because for now, our GA induction is somewhat "suppressed"...

[MikeNoun]

Courtesy of the Pontiac-Oakland Museum, I found some very interesting pics for you 73-77 A-Body guys. Some of these pics are very hard to locate within the vast library of the museum, but persistence, and a little Excedrin, seem to help.

1973 Grand Prix in the paint drying booth


The SD455 that never was.

[fiedlerh]

Thanks Mike! I'm hoping to stop by the museum next month for a quick visit.

[Alvin]

Mike - as always Thxs for the contributions.

[77 Canamman]

I have a copy of the Competitive Comparasion guide for the sales staff. It is very interesting.