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> Lifting rear of roof, what are the benefits
retrotech
post Mar 23 2006, 02:09 PM
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retrotech
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Here is a picture. If you are interested, Google Mitsubishi motors review vortex, and you will be able to down load. Its more factual than you might expect.


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retrotech
post Mar 23 2006, 02:10 PM
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another


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Matt Meyer
post Mar 23 2006, 02:18 PM
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Can't find pix of the WRX wing. (Damn, I am slow)

Fixed the link (I hope). Mitsubishi Vortex Generator It is a great article on vortex generators for the car. But most importantly shows I am right. (IMG:http://www.914world.com/bbs2/html/emoticons/wink.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/laugh.gif)

Turblent air is "bad" air. Mitsubishi designed the generators to get clean air to the wing and reduce drag by keeping the air flow attached "moving the seperation point rearward".

Is it time to start a seperate thread on general aerodynamics?
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J P Stein
post Mar 23 2006, 02:20 PM
Post #124


Irrelevant old fart
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Ah, at last....a trick piece I don't need. There's hope for me yet (IMG:http://www.914world.com/bbs2/html/emoticons/cool_shades.gif)
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Joe Ricard
post Mar 23 2006, 03:03 PM
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QUOTE (J P Stein @ Mar 23 2006, 12:20 PM)
Ah, at alast....a trick piece I don't need. There's hope for me yet (IMG:http://www.914world.com/bbs2/html/emoticons/cool_shades.gif)

I doubt it. (IMG:http://www.914world.com/bbs2/html/emoticons/biggrin.gif)
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byndbad914
post Mar 23 2006, 08:33 PM
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QUOTE (brant @ Mar 23 2006, 11:37 AM)
I doubt that I could "feel" by the seat of my pants a 15lb down force gain at 100mph.  In fact, I doubt that I could feel a 150lb down force gain at 100mph.

maybe my buttocks isn't sensative enough...

The driver might "feel" more comfortable, but its going to be tough to assign a value to feelings without a stop watch to verify them.

and I hope I'm wrong..
anxiously awaiting the trial by fire.

brant

I am a bit with Brant on this one - though I don't want nor have first hand experience with how sensitive his buttocks are (IMG:http://www.914world.com/bbs2/html/emoticons/KMA.gif) Figured I will just get that joke outta the way...

I don't think it will be generally "felt". My guess would be this - if the car can get to it's top speed at the track before, and this time out can go a bit faster (negating the concept that wind speeds that day might/will be different and have an effect) then the drag was decreased.

If the car could only go say 100mph through a specific corner before and was limited because the rear couldn't hang on, and now goes through at a higher speed as the rear is better planted, then downforce was increased.

A general track day where extremes can't be recalled/compared against, I doubt any feeling would be more than mental, or desire to have spent money wisely (and I am uber guilty of that one!). Not with what I would expect the differences to be (not huge). Add 150lbs of rear downforce or drag and that will be noticeable for sure. The fine tuning I suspect will be noticeable at the outer limits.

Just my .02 and not out to downplay the concept. I hope it works - just another item to throw apparently unwanted cash at (IMG:http://www.914world.com/bbs2/html/emoticons/beerchug.gif)
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