996 Cup Aero Questions
10-24-2012, 11:36 AM
#16
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I've got to assume that Porsche selected the chord and profile of the 996 Cup wing to take into account it's installation lower to the car body... ..and that moving it up higher would unbalance the aero. ...or am I assuming too much?
10-24-2012, 12:32 PM
#17
Ideal height is roof height according to Crawford research you can always run a flatter wing setting to balance or bigger splitter in front
10-24-2012, 04:29 PM
#18
Three Wheelin'
What options are available for 6gt3? I am trying to find info on the Crawford splitter to no avail, any ideas? I have the crawford wing ready to go, but need to understand if a splitter is available that generates more DF than the Cup version.
Thanks,
Mike
Thanks,
Mike
03-10-2013, 10:09 PM
#19
Pro
Thread Starter
Bump, More questions and a bit of rambling...
Rather than starting a new thread, I figure I'll just stick to this one. I know I've probably been annoying some of you with questions about wing angle. Sorry. The Reverie test, was conducted @ position #3. Why that was picked? IDK Maybe they were trying to match the AoA for the road car?
I've been looking for the angle of attack (from horizontal) for any single position, for the standard 997 Cup upright, so that I may determine what angle this test was run at.
I've got a rough profile built, and been running some simple CFD, so it would be nice to have an estimate of the entire range of drag and lift available.
Odd observation I've made is that the positions for the 997.2 uprights are flipped (flattest position is now on the leading edge of the upright). Any Clue why?
Been looking into books. Started with Frere's Porsche 911 Story and while it contains a wealth of information on the older cars, it is not giving me enough for the 996.2 GT3. If anyone has info on Clf and Clr for the 3,6.2 road car I'm all ears. I've got 996.1 GT3 info, and know that lift decreased with the next gen. Any sort of relative data about any 996 gen GT3 to Cup is also helpful. Suggestion on what book to look up next is also appreciated.
Here is a screenshot of my 996 wing simple CFD results (Newtons):
https://i.imgur.com/HTPh0p9.png?1
Can anyone confirm or deny accuracy. It would be nice to know if my setup is even in the ballpark.
Thanks a bunch!
Andrew
I've been looking for the angle of attack (from horizontal) for any single position, for the standard 997 Cup upright, so that I may determine what angle this test was run at.
I've got a rough profile built, and been running some simple CFD, so it would be nice to have an estimate of the entire range of drag and lift available.
Odd observation I've made is that the positions for the 997.2 uprights are flipped (flattest position is now on the leading edge of the upright). Any Clue why?
Been looking into books. Started with Frere's Porsche 911 Story and while it contains a wealth of information on the older cars, it is not giving me enough for the 996.2 GT3. If anyone has info on Clf and Clr for the 3,6.2 road car I'm all ears. I've got 996.1 GT3 info, and know that lift decreased with the next gen. Any sort of relative data about any 996 gen GT3 to Cup is also helpful. Suggestion on what book to look up next is also appreciated.
Here is a screenshot of my 996 wing simple CFD results (Newtons):
https://i.imgur.com/HTPh0p9.png?1
Can anyone confirm or deny accuracy. It would be nice to know if my setup is even in the ballpark.
Thanks a bunch!
Andrew
Last edited by lordpantsington; 03-22-2013 at 04:48 AM.
