Has anyone used a cowl induction hood? By "use" I mean other than cosmetic. If so, was the car carb'd, forced induction, intercooled?
the one I built sucks water in when you drive in the rain, so yeah they work...
once you get up to about 60MPH and faster, the water starts getting sucked into the engine bay, instead of dripping off the lip.
I always wonder how much one would reduce underhood temps for the Supercharger. The cooler the air across the charger, the less heat build-up, the faster I go! :hick:
Me like go fast :hick:
That is interstesting to know. Not what I want happening. That means the air coming in has to go somewhere and that is under the car.
1WLD BRD,
Thanks for the info. Can you give me some details on your setup? How high is the cowl?
I'm trying to decide between a scoop and cowl induction. It would be nice to resolve this without a lot of prototype testing.
Hillbilly Deluxe,
The base of the windshield is a high pressure area so it's a good source of air for induction or cooling.
Contrast that with the factory 87-88 scoops, they're positioned in a low pressure area and not shaped optimally for air flow.
Yes this is true. The only correct way to run a cowl induction hood is to use a plate to seal off rest of engine compartment so that only the air goes to the air filter. If it is not then the air enters the engine compartment and is pushed against the firewall and follows it down and under the car. Since I am not running a carb with an air filter, but need the added height, a blocked cowl is better for me.
The factory hood scops are a re-styling of a true NACA duct had they used them then they would have been more efficient.
That's good food for thought, thanks.
Gumby indicated he was going to use the factory scoops as heat vents. Gumby, if you're watching, please chime in. Were you planning on using the venturi effect somehow? What about modifying the slots, ie partially block them, add some kind of bulge or depression?
sorry man, forgot about this thread...
This was the hood I was using:
(http://i205.photobucket.com/albums/bb170/1WLDBRD/88%20XR7%20Cougar/DSC03483.jpg)
(http://i205.photobucket.com/albums/bb170/1WLDBRD/88%20XR7%20Cougar/DSC03484.jpg)
It is about 3"s high at the back.
Thanks. Are you directing the air from the cowl anywhere?
no, it was just to vent the hot air from the engine bay for me.
Thanks
clearance/venting
SLEEPER T-BIRD 87,
How tall was that cowl? Was your name ironic from the beginning or did it evolve?
Since I am going carbed, I'd consider one if the scoop followed the curve of the hood and didn't end like a freakin' ski jump.
I'll probably just keep the flat hood and seal the airbox to the cowl, but the extra clearance would be nice...
My non-intercooled setup runs colder than stock with the cowl hood I have on the Mustang.
I'll throw in my .02 I have had thoughts of using a '64 Thunderbolt hood scoop. It is a ram-air design with the "inlet" air coming through the headlight area, and heat exiting through the backside of the hood scoop. It's about 1/4" screen. I have thought about using the area where the center lights are. Problem would be how to direct the air around the radiator. Although a photoshop pic with the center lights blacked out (would be black mesh) and the Thunderbolt hood would be cool. anyone?, anyone?, anyone?, Bueller?
The other thought was using a hood scoop set-up like that on the Challengers. Alot of metal work to make it work, but I have a spare hood I may try it on.
It's my understanding that the cowl induction hood is more for aerodynamics than function via pulling air into the engine. But what do I know, lol.
PS: Mine's carbed with a 351W til the built engine is done.
it doesnt exit through the backside of the air cleaner... what good would that do? seriously.
The air cleaners are sealed to those tubes and suck in fresh cold air from the headlights.
I meant the scoop itself.
I think Showcars Bodyparts has just about every hoodscoop every conceived, in case you have more money than time.
I'd like to keep as much of the external stock sheet metal as possible, so if I can use the cowl induction with some underhood mods only, that would be sweet. I might have to add some other vents or maybe do something like what Gumby is doing.