my latest project: Cowl Induction
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There's a lot of information on the web about high pressure areas that can feed an intake - here's one article that's pretty interesting and a good way to test.
Browser Warning
Basically, yes the front grill area is generally a high pressure area and so is the cowl area. If we were to site our intakes as close to the center of the grill that is actually the highest pressure air. I'm not really big on cutting that area and that's why I'm thinking cowl. There's another article on autospeed I think about tufting the body of the car. From what I remember the location of those fender intakes is not a smooth air area and while it might be a convenient and cool looking way to do it, might not be the most efficient. I did think about that, and also thought maybe adding a scoop intake with a naca duct near the center front of the hood. The design is to scoop air and it would be a 4" straight, short shot into the intake. I believe this would be the most efficient way to get cold air into the intake. And if I can find a scoop in the junkyard and fab it into the hood it would be one of the best designs but I'm not sure I want that hanging off the front of my truck. I may try and test using that air pressure switch. The cowl is the least intrusive while providing the most air flow.
Someone on this thread asked about adding a second hose to their NA air cleaner. In race cars I've seen it done where you just cut an hole into the side, and rivet an aluminum flange from the inside. Easy way to get more air into a stock cleaner which is important for racing rules.
Just thinking out loud, any other ideas are appreciated.
Browser Warning
Basically, yes the front grill area is generally a high pressure area and so is the cowl area. If we were to site our intakes as close to the center of the grill that is actually the highest pressure air. I'm not really big on cutting that area and that's why I'm thinking cowl. There's another article on autospeed I think about tufting the body of the car. From what I remember the location of those fender intakes is not a smooth air area and while it might be a convenient and cool looking way to do it, might not be the most efficient. I did think about that, and also thought maybe adding a scoop intake with a naca duct near the center front of the hood. The design is to scoop air and it would be a 4" straight, short shot into the intake. I believe this would be the most efficient way to get cold air into the intake. And if I can find a scoop in the junkyard and fab it into the hood it would be one of the best designs but I'm not sure I want that hanging off the front of my truck. I may try and test using that air pressure switch. The cowl is the least intrusive while providing the most air flow.
Someone on this thread asked about adding a second hose to their NA air cleaner. In race cars I've seen it done where you just cut an hole into the side, and rivet an aluminum flange from the inside. Easy way to get more air into a stock cleaner which is important for racing rules.
Just thinking out loud, any other ideas are appreciated.
#42
Join Date: Jul 2006
Location: Wabanaki Indian Territory
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thats a cool (no pun intended) cheap test!
someone should test the vehicles speeds of ram air and cowl induction for our rigs.
that's a great article ajgoldsmith!
of course we need to understand their test car vs our trucks aerodynamics.its not surprising to see their cowl is low pressure.
looks like your browser gave that site a warning?
anyway,all seems good using firefox here.
http://autospeed.com/cms/A_1023/article.html
someone should test the vehicles speeds of ram air and cowl induction for our rigs.
that's a great article ajgoldsmith!
of course we need to understand their test car vs our trucks aerodynamics.its not surprising to see their cowl is low pressure.
looks like your browser gave that site a warning?
anyway,all seems good using firefox here.
http://autospeed.com/cms/A_1023/article.html
#43
I like the idea and thought of the snow/ice problem as well. My solution would be to switch back to the stock style intake for the winter, especially since slow and steady is the name of the game here where they clear the roads once during the year in the spring to make the roads dry faster, otherwise all winter the road is a thick sheet of ice, and mpg doesnt matter this time of year either since the truck needs to idle half an hour before it's warm enough to drive.
#45