Sign in to follow this Followers 0. Hood Scoops, when and why? Recommended Posts. Spokane-Pete Posted May 9, Wanting to know just to help me identify years and models.
Peter S. Share this post Link to post Share on other sites. Gnuman SuBrat84 Without it, the pressure in that box increases and slows down the air coming in. If you slow down the air coming into the engine bay, you slow down the air coming through the radiator and reduce the cooling ability. But since I can't seem to explain this logically why don't we look at the real world. No production car anywhere has a hood scoop that is not feeding a cooler.
If hood scoops "got rid of heat twice as fast" then you would think every car in the world would have one. But they don't. Our cars have scoops that are just there for looks and Subaru blocked them off for a reason.
If it actually improved cooling don't you think they would be open? Now look at production based race cars. No scoops there either- just vents. Prodrive fought with Subaru for years over the scoop because it was bad for cooling and aerodynamics but it was part of the "brand image" and the racing budget comes from marketing. So they ended up sealing the scoop to the air intake. They also ducted the radiator and intercooler to prevent any unwanted air from entering the engine bay.
How about installing a flap on the hood scoop with a cable running to the cab? Of all the hood scoop threads that I have read this has been the most informative and well stated. For rallying, in those cars such as the WRC cars, they perform a function but I don't know what. I think they look pretty cool, but if it doesn't do anything, then what is the point of getting it? But it's for looks, but I wouldn't want it because I would be afraid people would say, wtf is that and what does it do, you said say nothing and they would be like, "oh you put that and it doesn't do anything?
I still like them. South Jersey. What do those roof spoiler thingy's do?? RicePowered Jan 14, pm. All they are is a fresh air inlet for the cabin if you've ever watched any rally you'd notice the windows are up to keep out dust. So I can't buckle up for this ride! CID Jan 14, pm. Throwin' this out, but could it be an air intake for a car that has a rear engine compartment? I'm pretty sure I've seen a roofscoop with tubes hooked up inside. XxMerlinxX Jan 14, pm. I don't think it is used as an air intake.
For rear engine cars, they have side vents for the intake. It may be to circulate air inside the cabin for the rally cars. Guam, U. Street Prototype.
Ok, its for looks and for some of the cars its got their functions, MidEngine uses it for air intake since their engine does not get enough air from the back, not like front engines do, they put theirs on the roof or sometimes you see them on the sides,NSX and MR2 got them customized.
Street Prototype Jan 14, pm. LouisianaGTS Mar 5, am.
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