Scott Posted November 28, 2009 Share Posted November 28, 2009 its nothing to do with where the sharp edge of the wing is. Its the profile of the blade. its ard to explane ill find a picture. Edited my response, had a think about it Quote Link to comment Share on other sites More sharing options...
Ewen Posted November 28, 2009 Share Posted November 28, 2009 Almost, its thin edge forward and fat edge backwards to act like an aeroplane wing. Creats down force rather than lift :)That would work if you could drive backwards fast enough. Quote Link to comment Share on other sites More sharing options...
Scott Posted November 28, 2009 Share Posted November 28, 2009 :)That would work if you could drive backwards fast enough. Now there is a challenge. Quote Link to comment Share on other sites More sharing options...
Scott Posted November 28, 2009 Share Posted November 28, 2009 its nothing to do with where the sharp edge of the wing is. Its the profile of the blade. its ard to explane ill find a picture. On a car. Giving downforce http://www.racecar-engineering.com/imageBank/cache/w/wng.jpg_e_5b84aa811001e694c004cbb049f2caab.jpg On a plane giving lift. http://image.circletrack.com/f/9296472/ctrp_0707_03_z+aerodynamic_downforce+airplane_wing_diagram.jpg Stop editing and read my responses I had a think and realised. Honest, I don't work in the aerospace industry Quote Link to comment Share on other sites More sharing options...
Guigsy Posted November 28, 2009 Share Posted November 28, 2009 (edited) it still doesnt make sense... fat edge forward. thin edge bacward. flat surace of wiing on the top Im sure you can get a better and more useable car for half the price Edited November 28, 2009 by Guigsy (see edit history) Quote Link to comment Share on other sites More sharing options...
Scott Posted November 28, 2009 Share Posted November 28, 2009 it still doesnt make sense... fat edge forward. thin edge bacward. flat surace of wiing on the top I know, thats why I changed my opinion. When I edit my posts I just add additional information so that I can't be accused of covering up my mistakes Having another think about it I think it's just an upside down plane wing, which will create downforce as well. That was my addition to the post. I didn't edit my original response at all as I wanted to leave my train of thought intact. Quote Link to comment Share on other sites More sharing options...
billy bhoy Posted November 29, 2009 Author Share Posted November 29, 2009 im confuset!think ill just mess about with it to see how it looks! Quote Link to comment Share on other sites More sharing options...
Dnk Posted November 29, 2009 Share Posted November 29, 2009 (edited) im confuset!think ill just mess about with it to see how it looks! Your center blade is on upside down so all you need to do is unbolt it and turn it through 180 degrees keeping the thin edge of the wing to the rear of the car and the curve of the wing upwards and not downwards It can only fit on one way or youll seriously mess up the handling of your car as you'll create uplift rather than downfoce. Just look at a few trd wing pictures and im sure you'll see how its supposed to fit. Edited November 29, 2009 by Dnk (see edit history) Quote Link to comment Share on other sites More sharing options...
swich Posted November 29, 2009 Share Posted November 29, 2009 Ask a dealer i'd say is the best bet. Quote Link to comment Share on other sites More sharing options...
Dnk Posted November 29, 2009 Share Posted November 29, 2009 here are 2 pics ive robbed off Kerons for sale thread, they clearly show how the wing curves upwards and backwards so its pretty easy to fit yours the same. Quote Link to comment Share on other sites More sharing options...
Dnk Posted November 29, 2009 Share Posted November 29, 2009 Ask a dealer i'd say is the best bet. Why ? the dealer wont say anything other than his centre blade is on upside down and it needs to be flipped 180 degrees Quote Link to comment Share on other sites More sharing options...
AJI Posted November 29, 2009 Share Posted November 29, 2009 (edited) Seems to be a bit of confusion in this thread. As I did a fair amount of aerodynamics on my degree, maybe I can help out. The rear spoiler on the likes of the stock and TRD versions are supposed to work like an inverted airplane wing. The car body itself is acting like a normal (right way up) wing generating an amount of lift. Therefore the air coming over the top of the car is accelerated in comparison to the air going underneath the car. So a spoiler tries to use this accelerated air and 'catch' it as it passes over the car's top surface (and sides to an extent) to produce an amount of downforce. The downforce generated is not much, but at higher speeds should be enough to have an effect on car balance. Although, on many spoiler designs that I see, I wonder if all they do is create drag and even sometimes aid in a lift effect at the rear. To effectively design a spoiler a company should do wind tunnel testing and not just computer modeling. Wonder how many aftermarket spoiler companies have the cash resource to do wind tunnel testing? Edited November 29, 2009 by AJI (see edit history) Quote Link to comment Share on other sites More sharing options...
Suprash Posted November 29, 2009 Share Posted November 29, 2009 It can only fit on one way or youll seriously mess up the handling of your car as you'll create uplift rather than downfoce. Dunk, come on man, you're talking about a little amount of air flow trying to upset a 1500kg car, we're not in F1 territory here man Quote Link to comment Share on other sites More sharing options...
RedM Posted November 29, 2009 Share Posted November 29, 2009 Which orientation of the blade will make a Supra take off if put on a conveyor belt? Quote Link to comment Share on other sites More sharing options...
Suprash Posted November 29, 2009 Share Posted November 29, 2009 Which orientation of the blade will make a Supra take off if put on a conveyor belt? Neither lol.........the Supra would still hit the ground Go buy a plane Quote Link to comment Share on other sites More sharing options...
jazz1 Posted November 29, 2009 Share Posted November 29, 2009 http://www.mkivsupra.net/vbb/showthread.php?t=199036 here's pic of how it should look Quote Link to comment Share on other sites More sharing options...
Kris H Posted November 29, 2009 Share Posted November 29, 2009 Thin edge forward and fat t edge at the rear, so it cuts through the air flow. think its the other way around like an air plane wing Quote Link to comment Share on other sites More sharing options...
Ewen Posted November 29, 2009 Share Posted November 29, 2009 Lift and negative lift...you decide. Quote Link to comment Share on other sites More sharing options...
Dnk Posted November 29, 2009 Share Posted November 29, 2009 Dunk, come on man, you're talking about a little amount of air flow trying to upset a 1500kg car, we're not in F1 territory here man It does depend on how fast you drive ive noticed my car isnt so stable at speed since removing the wing, im talking 3 figures though How do you know how much lift an upside down Trd wing will create Ash im just airing on the cautious side as i know how wriggly my car is wingless so adding lift to the rear cant be good. Quote Link to comment Share on other sites More sharing options...
Dnk Posted November 29, 2009 Share Posted November 29, 2009 On a car. Giving downforce http://www.racecar-engineering.com/imageBank/cache/w/wng.jpg_e_5b84aa811001e694c004cbb049f2caab.jpg On a plane giving lift. http://image.circletrack.com/f/9296472/ctrp_0707_03_z+aerodynamic_downforce+airplane_wing_diagram.jpg To all those that dont know heres the differance between getting lift on an aeroplane wing and downforce with a wing on a car Quote Link to comment Share on other sites More sharing options...
Lbm Posted November 29, 2009 Share Posted November 29, 2009 (edited) There's always the Veilside option - The gentleman's choice when not sure which way up a TRD should be. Edited November 29, 2009 by Lbm (see edit history) Quote Link to comment Share on other sites More sharing options...
TLicense Posted November 29, 2009 Share Posted November 29, 2009 Although, on many spoiler designs that I see, I wonder if all they do is create drag and even sometimes aid in a lift effect at the rear. To effectively design a spoiler a company should do wind tunnel testing and not just computer modeling. Wonder how many aftermarket spoiler companies have the cash resource to do wind tunnel testing? Very very true, although I highly doubt any non-OEM company has even tried to develop the wing of the car using a computer (CFD - computational fluid dynamics). The only company I can see even attempting any real analysis will be Toyota and by extension - TRD. When you consider that most wings are sold generically in that they'll fit any car, it makes determining the characteristics of the wing next to impossible as the flow from the roofline and the rear screen will be different for every car it's fitted to. The reason why this is important is that the wing will have an optimum incidence. That is an optimal angle it is being presented to the airflow. If you take the wing beyond this angle, the wing will stall and create a lot of drag (vastly more than it will otherwise) and very little downforce. Having designed wings the past decade, I can tell you getting the profiles and the incidence correct is extremely difficult, and a difference of as little as 0.1 of a degree can cause a wing to stall. Not only do you have a problem of the wing globally stalling, but you may find that the centre section is attached and generating downforce but the outboard tips are stalling. There's lots of tricks you can use to try to reduce this, but again as the wings will get bolted on anything from a Supra to a Nova, trying to work out what to do as a manufacturer is a futile task. Quote Link to comment Share on other sites More sharing options...
Scott Posted November 29, 2009 Share Posted November 29, 2009 I think they just all take 5 degrees as a rule of thumb Quote Link to comment Share on other sites More sharing options...
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