Air Filter Systems

Trader,

I read the story about the Penske/Donohue development of the 70 Javelin a long time ago. It may have been in the book Donohue wrote, "The Unfair Advantage" or an excerpt from it. To further re-enforce the concept that Penske/Donohue developed a ducted air inlet system coming off the base of the windshield for the 70 Javelin Trans Am race car, sort of a cowl induction system, I have a JoHan 1/25th scale model of the 70 Javelin race car that has the duct system on it. In 71 along with the new body style, came a new hood that included a cowl induction system.

The cowl induction system  increased the engines output a few horsepower as well as reduced the drag induced by the cowl area by removing some of the high pressure air in front of the windshield and forcing air into the engines intake/carburation system.

Another curiosity I recall reading that came from Donohue was that they wished the 70 AMX grille could be installed on their 70 Javelin racers because as a result of wind tunnel testing they discovered that the AMX grille produced less drag than the Javelin grille in 1970. Hence the 71 Javelin/AMX grille was flush with the front of the car like the 70 AMX grille.

Donohue was a brilliant engineer as well as a very talented driver.