02-08-2017, 05:54 PM
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#1
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On the slippery slope
Join Date: Mar 2014
Location: Austin and Palm Springs
Posts: 3,800
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Quote:
Originally Posted by jb92563
Huh, apart from some drag, I'm not seeing much down force effect at the spoiler.
Perhaps Boxsters need whale tails 
Fascinating results though, thanks for posting them. |
That's because a spoiler does not create down force, it reduces lift
aerodynamics 101
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2004 Boxster S 6 speed - DRL relay hack, Polaris AutoTop DIY
2004 996 Targa Tip
Instructor - San Diego region
2014 Porsche Performance Driving School
2020 BMW X3, 2013 Ram 1500, 2016 Cmax, 2004 F-150 "Big Red"
Last edited by JayG; 02-08-2017 at 05:56 PM.
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02-08-2017, 06:14 PM
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#2
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Registered User
Join Date: Sep 2013
Location: Montreal, QC. (currently expat to Shanghai)
Posts: 3,249
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Deleted - misleading grid.
if Jay doesn't understand it I don't think many will.
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'97 Boxster base model 2.5L, Guards Red/Tan leather, with a new but old Alpine am/fm radio.
Last edited by Nine8Six; 02-08-2017 at 06:58 PM.
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02-13-2017, 07:00 AM
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#3
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Registered User
Join Date: Apr 2012
Location: Riverside, CA
Posts: 1,666
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Quote:
Originally Posted by JayG
That's because a spoiler does not create down force, it reduces lift
aerodynamics 101
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Oh....Duh, I should have known that!
Glider pilot, so I'm very familiar with spoilers and how they effect lift on wings. 
Those charts help explain why Boxster racers have big wings above the roof line as the air below that is turbulent and less effective for wings.
I'd have to say that any low trunk mounted wing is only probably useful as a drag producing device as its in the "dirty" air and be not be very effective in creating any down force.
Shirts with these graphics...cool idea. I'll need one of those.
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"It broke because it wants to be Upgraded  "
2012 Porsche Performance Driving School - SanDiego region
2001 Boxster S, Top Speed muffler, (Fred's) Mini Morimotto Projectors, Tarret UDP,
Short Shifter, Touch Screen Dual Din Radio, 03 4 Bow glass Top (DD & Auto-X since May 17,2012)
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02-22-2017, 11:48 AM
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#4
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Registered User
Join Date: Dec 2009
Location: Orange County, CA
Posts: 1,998
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Quote:
Originally Posted by jb92563
Glider pilot, so I'm very familiar with spoilers and how they effect lift on wings.
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Jb92563
If you are a licensed pilot, would you consider taking me for a ride on a rented G-102/103 at Warner Springs?
I live in OC and could do a nice drive down Highway 79 and perhaps having lunch afterwards at Ramona?
Regards, Gilles
PS: Sorry for hacking this great tread, just could not resist
Last edited by Gilles; 02-22-2017 at 12:10 PM.
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02-22-2017, 12:55 PM
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#5
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On the slippery slope
Join Date: Mar 2014
Location: Austin and Palm Springs
Posts: 3,800
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Quote:
Originally Posted by Gilles
Jb92563
If you are a licensed pilot, would you consider taking me for a ride on a rented G-102/103 at Warner Springs?
I live in OC and could do a nice drive down Highway 79 and perhaps having lunch afterwards at Ramona?
Regards, Gilles
PS: Sorry for hacking this great tread, just could not resist
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I'll go for a glider ride as well 
__________________
2004 Boxster S 6 speed - DRL relay hack, Polaris AutoTop DIY
2004 996 Targa Tip
Instructor - San Diego region
2014 Porsche Performance Driving School
2020 BMW X3, 2013 Ram 1500, 2016 Cmax, 2004 F-150 "Big Red"
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2004 Porsche Boxster S
2004 Porsche 996 Targa
Hybrid Mode
