30 seems reasonable.
Since warm air rises it will find the way out of the cowl and draw fresh cooler air in behind it, until the low pressure builds and it starts drawing in through the cowl.
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Since warm air rises it will find the way out of the cowl and draw fresh cooler air in behind it, until the low pressure builds and it starts drawing in through the cowl.
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I can't see it hurting anything at all.
Supercharged111
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It stagnates flow across the radiator at speed. To what extent who knows? Could be a drop in the bucket. I'm sure that's the case on my truck with the perforated plate basically blocking it off.
How so?
Supercharged111
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Airflow through the radiator depends on a pressure differential across the front and back. The high pressure in is pretty well fixed unless you add a diesel bumper with its associated duct. Adding a cowl hood increases airflow into the engine bay behind the radiator and thus decreases that pressure differential. Can I quantify the effect of this? Hell no. But I can say no road racing car runs a cowl hood to help with cooling. They use extractor vents either added to an existing hood or molded into an aftermarket one. At the end of the day, the real world effect on cooling could well be squat, but apparently they flowed enough to feed a muscle car's dual quads back in the day. Either way, I like the look and am not opposed to putting them on my trucks.
I'd imagine that the fan behind the radiator provides the pressure differential, I'm not sure that the cowl hood could allow enough air in to overcome that.
Road racing cars have optimized aeros which would (conceivably anyway) route air around rather than into the engine bay, so the vents would be needed. Street cars (or trucks in this case) have front ends designed for a different purpose. Like you, I got no data to back this up, just my own observations.
I'm with you 100% on the look, they're awesome on so many vehicles.
Road racing cars have optimized aeros which would (conceivably anyway) route air around rather than into the engine bay, so the vents would be needed. Street cars (or trucks in this case) have front ends designed for a different purpose. Like you, I got no data to back this up, just my own observations.
I'm with you 100% on the look, they're awesome on so many vehicles.
Jerryred94silvy
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The high pressure in is pretty well fixed unless you add a diesel bumper with its associated duct.[/QUOTE]
This being a good, or a bad thing? I have a diesel bumper with no ducts. Didn’t know about needing any ducts. (Sorry OP for the thread jack)
This being a good, or a bad thing? I have a diesel bumper with no ducts. Didn’t know about needing any ducts. (Sorry OP for the thread jack)
This being a good, or a bad thing? I have a diesel bumper with no ducts. Didn’t know about needing any ducts. (Sorry OP for the thread jack)[/QUOTE]
No apologies necessary! My thread, your thread..... heck, we're all here to ask questions and get stuff figured out, throw ideas back and forth, give ones opinion, help some people, and build some cool ass rides!!!!!
Diesel bumpers are the ones with holes in them. That's what makes em diesel bumpers....
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