Originally posted by SVT Barge:
Just a little note that air usually won't escape out of the back of a cowl hood. The whole idea behind a cowl hood is to use the high pressure area that builds at the bottom of the windshield to ram air into the cowl.
Thank you!!!
That is correct...that is why the Cowl Induction hood is the most popular hood for muscle cars to date by far. The '68-'69 Z28, '70-'72 Chevelle SS were 1st to use the cowl induction hood. The Chevelle SS introduced the vacuum actuated rear flap on the top of the hood to open under hard acceleration. Both cars had open top air cleaners with foam isolators making a seal between the hood and air cleaner keeping the open portion in the raised cowl section getting cold air only from hood opening at the base of the windshield. It will however blow cold air in during driving conditions and allow the hot air to escape while sitting still on our cars since the air is not routed to a sealed intake system.
Scott
Scott
2000 Contour SVT #1464
Mustang Dyno: 171.6hp/145.3lb
Dynojet Dyno: 171.1hp/148.9lb
1989 20th Anniversary Turbo T/A "Indy 500 Pace Car"
#1376 of 1550 All Original, 46k with a few mods 
2002 F150 SuperCrew
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