Whats the better hood? A Cowl Induction or a Ram Hood? Or is there something else?
10-21-2003, 10:31 PM
#5
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Join Date: Dec 1969
Location: Phila., PA
Posts: 1,150
A cowl induction hood IS a ram-air hood. It just takes it's air from the natural high-pressure area that forms at at the base of the winshield when the car is in forward motion instead of having it's own forward-facing scoops that generate their own high pressure area. As with any ram-air hood, sealing the air cleaner up tight against wherever the air is coming from is critical to generating ANY positive pressure above the carb.
The BIGGEST benefit you will see for ANY external air inlet comes from reduced air inlet temps vs. drawing hot underhood air.
The BIGGEST benefit you will see for ANY external air inlet comes from reduced air inlet temps vs. drawing hot underhood air.
10-22-2003, 11:11 AM
#8
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Join Date: Jun 2001
Location: TX
Posts: 1,211
Originally posted by DarthIROC
Neither are really gonna help, performance wise. I say go with the cowl, because it will give extra clearance if needed.
Neither are really gonna help, performance wise. I say go with the cowl, because it will give extra clearance if needed.
Car Craft tested a cowl hood against a ram air setup on a carbed vehicle. Both showed similar performance increases in the 1/4, even though the cowl hood was not sealed to the air cleaner. It was just from the cooler air. If memory serves, both setups were about 1 1/2 tenths quicker in the quarter over hot underhood air.
10-22-2003, 01:00 PM
#9
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Join Date: Aug 2002
Location: Teeter-tottering between Brilliance and Insanity
Posts: 1,292
Originally posted by angel71rs
Car Craft tested a cowl hood against a ram air setup on a carbed vehicle. Both showed similar performance increases in the 1/4, even though the cowl hood was not sealed to the air cleaner. It was just from the cooler air. If memory serves, both setups were about 1 1/2 tenths quicker in the quarter over hot underhood air.
Car Craft tested a cowl hood against a ram air setup on a carbed vehicle. Both showed similar performance increases in the 1/4, even though the cowl hood was not sealed to the air cleaner. It was just from the cooler air. If memory serves, both setups were about 1 1/2 tenths quicker in the quarter over hot underhood air.
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