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I am a part of the Time Attack Forums and I came across WCKDVPR's build of his Viper. So these are some more pics of what I am working on.
Here is the link to more pics hood louvers - Page 3 - Time Attack Forums https://www.miataturbo.net/attachmen...ine=1370659022 https://www.miataturbo.net/attachmen...ine=1370659022 https://www.miataturbo.net/attachmen...ine=1370659022 https://www.miataturbo.net/attachmen...ine=1370659022 https://www.miataturbo.net/attachmen...ine=1370659022 |
That splitter looks a little high, but that is a sexy, down-to-business car.
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Me like.
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He says and I quote "I am up in the 220 range and it never got above 205 with the new ducting". A cool engine is a happy engine.
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Originally Posted by 1993ka24det
(Post 1019683)
He says and I quote "I am up in the 220 range and it never got above 205 with the new ducting". A cool engine is a happy engine.
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I was looking around about radiator ducts and then what about a wing for the upper portion of the radiator duct.
He is some inspiration https://www.miataturbo.net/attachmen...ine=1370924848 https://www.miataturbo.net/attachmen...ine=1370924848 I want more front end downforce. Here is one I drew up, but the air foil is to big, but you got the idea https://www.miataturbo.net/attachmen...ine=1370924848 |
not sure how that would work, there would at least need to be a gap between the wing and the radiator.
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Originally Posted by motormechanic
(Post 1020444)
there would at least need to be a gap between the wing and the radiator.
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"plucas" said to keep the radiator under 32mm thick.
There would be a swivel right above the radiator so the wing can be adjustable. |
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Originally Posted by triple88a
(Post 1020448)
Why?
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Correct however its of the entire assembly not just 1 bit.
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Originally Posted by Dlaitini
(Post 1020459)
Article should be called "how to make your drift car look like a '80s rally car" Also, how pretentious is that guy to call his own article "brilliant"? |
Okay think about it this way. Flow closest to the wing flows faster than that farther away from the wing. This ensures that the static pressure reduction is greatest near the wing surface. This provides the turning effect to the flow farther away. Now, if you block the path of the flow closest to the wing, it will slow down the flow, and now you lose the turning effect on the flow farther away. Leave a gap, problem solved.
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Just the opposite. Area closest to the wing is called a boundary layer. In this layer the air slows down due to friction. This layer is responsible for creating turbulence that you dont want.
U'd want to toss the radiator near the end of the wing where the boundary layer is the thickest and the air slows down and pressure increases. |
Originally Posted by triple88a
(Post 1020469)
Just the opposite. Area closest to the wing is called a boundary layer. In this layer the air slows down due to friction. This layer is responsible for creating turbulence that you dont want.
U'd want to toss the radiator near the end of the wing where the boundary layer is the thickest and the air slows down and pressure increases. But you'd need to do a lot of CFD on it to make any real downforce. Remember that radiator is going to kill the velocity of flow, its also going to have higher pressure in front of it than behind it. I'm in the camp of, the wing rad duct probably wont work (without a bunch of prototypes in the wind tunnel). |
No. You are combining two features with competing interests.
For the wing to work, it needs low pressure below it. For the radiator duct to work, it needs high pressure inside of it (which is below the wing) You can't have high pressure and low pressure at the same time, so one of them wont work well. Also, that second picture isn't a "wing", its just a gurney flap in front of the radiator duct exit. THAT is a great idea (I have one on my car too). It will create lower pressure at the radiator duct exit, reducing pressure behind the radiator. |
Originally Posted by Handy Man
(Post 1020527)
No. You are combining two features with competing interests.
For the wing to work, it needs low pressure below it. For the radiator duct to work, it needs high pressure inside of it (which is below the wing) You can't have high pressure and low pressure at the same time, so one of them wont work well. Also, that second picture isn't a "wing", its just a gurney flap in front of the radiator duct exit. THAT is a great idea (I have one on my car too). It will create lower pressure at the radiator duct exit, reducing pressure behind the radiator. |
Originally Posted by triple88a
(Post 1020538)
Hmm let me guess, u dont know the pressure map of a wing?
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Then u should know that at the end of the wing the pressure increases again where the air slows down.
Pic of course upside down. https://www.miataturbo.net/attachmen...ine=1370955751 |
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