Notices
997 Forum 2005-2012
Sponsored by:
Sponsored by:

Spoiler Recommendations

Thread Tools
 
Search this Thread
 
Old Jul 24, 2013 | 04:37 PM
  #16  
sixgun95's Avatar
sixgun95
Thread Starter
Instructor
 
Joined: Dec 2012
Posts: 149
Likes: 0
From: Scottsdale, AZ
Default

Originally Posted by CORSASCHNELL
You don't need to do 140 mph to change the dynamics of air flow on a car, even at legal highway speeds any additions or deletions will change the balance. Porsche 911's are already rear biased due to being rear-engined and putting more down force in the rear will lighten up the front even more.

And yes I am an aeronautical engineer.
You win!
Reply
Old Jul 24, 2013 | 09:50 PM
  #17  
Rotmilky's Avatar
Rotmilky
Instructor
 
Joined: Jul 2011
Posts: 208
Likes: 7
From: Los Alamos, NM
Default

Originally Posted by CORSASCHNELL
Porsche 911's are already rear biased due to being rear-engined and putting more down force in the rear will lighten up the front even more.

And yes I am an aeronautical engineer.
I must confess this is a little bit counterintuitive to me. I don't understand how a downward force on the rear leads to an upward force on the front. Basically in my simplistic view, the only way to lighten the front is to reduce the gravitational force pulling downward with a counter force. What creates this force? Aerodynamics is not one of my strong suits. Does pushing down on the rear do something like force more air under the car which pushes up on the front a bit?

After thinking about the handling of these cars for a bit, it seems that the wing needs to be on the front to help control the rampant understeer. I wonder if a cabrio would look good with a big wing hanging off the hood.
Reply
Old Jul 24, 2013 | 11:22 PM
  #18  
BLKonBLKC4S's Avatar
BLKonBLKC4S
Track Day
 
Joined: Jul 2010
Posts: 20
Likes: 0
Default

Originally Posted by CORSASCHNELL
You don't need to do 140 mph to change the dynamics of air flow on a car, even at legal highway speeds any additions or deletions will change the balance. Porsche 911's are already rear biased due to being rear-engined and putting more down force in the rear will lighten up the front even more.

And yes I am an aeronautical engineer.
You might be an aeronautical engineer, but you do not even know your own car. At 75 MPH, YOUR car deploys the rear spoiler/wing. If the car was so rear biased as you say due to the rear engine why would the high paying engineers at Porsche feel the need to add more down force at higher speeds? It must be because you know more than them and have been building cars longer..NOT! The added wing to my car and what the OP is looking for just stays up at speeds under 75. Besides the Turbo's, GT3's, and GT2's all have wings that are deployed all the time. Did Porsche s "screw up" the engineering on those cars? You might want to call them and let know...LMAO

Also, my car is in the shop now getting the GT3 front bumper and Porsche highly recommends that you have a wing on the rear.

Now that I have said all of that......I do not track my car. All of my mods for the most part are aesthetic. I really could care less what you think about me adding a wing or the GT3 front bumper for that matter. I like the way it looks and its my car. Do what you want or don't want with your own car, thats why it is yours!
Reply
Old Jul 25, 2013 | 04:03 AM
  #19  
TommyV44's Avatar
TommyV44
Drifting
15 Year Member
 
Joined: Apr 2010
Posts: 3,112
Likes: 563
From: Naples, Florida
Default

Originally Posted by MessyMarvin
I am not speaking for him, but the Turbo is not what was asked, it is a totally different look than putting a Spoiler on an NA car.

I like the way a Turbo looks, but prefer NA clean.
What he said!!

Tom
Reply
Old Jul 25, 2013 | 08:55 AM
  #20  
rotesAuto's Avatar
rotesAuto
Three Wheelin'
 
Joined: Oct 2012
Posts: 1,404
Likes: 2
From: North Carolina, '12 cls63 '14 S550V4, 07TT-gone, 07Targa4S-gone
Default

Originally Posted by BLKonBLKC4S
You might be an aeronautical engineer, but you do not even know your own car. At 75 MPH, YOUR car deploys the rear spoiler/wing. If the car was so rear biased as you say due to the rear engine why would the high paying engineers at Porsche feel the need to add more down force at higher speeds? It must be because you know more than them and have been building cars longer..NOT! The added wing to my car and what the OP is looking for just stays up at speeds under 75. Besides the Turbo's, GT3's, and GT2's all have wings that are deployed all the time. Did Porsche s "screw up" the engineering on those cars? You might want to call them and let know...LMAO

Also, my car is in the shop now getting the GT3 front bumper and Porsche highly recommends that you have a wing on the rear.

Now that I have said all of that......I do not track my car. All of my mods for the most part are aesthetic. I really could care less what you think about me adding a wing or the GT3 front bumper for that matter. I like the way it looks and its my car. Do what you want or don't want with your own car, thats why it is yours!
wow, one of THOSE guys.........
Reply
Old Jul 25, 2013 | 10:38 AM
  #21  
Luckymba's Avatar
Luckymba
Instructor
 
Joined: Aug 2012
Posts: 111
Likes: 2
Default

Since this post is already getting a bit chippy why not add fuel to the fire. A wing on a NA car looks great if you have a mullet. I can't help but think about those poor 911s of yester-year that were modded with whale tales. Righteous!
Reply
Old Jul 26, 2013 | 09:57 AM
  #22  
P0rsch3F113's Avatar
P0rsch3F113
Three Wheelin'
 
Joined: Jun 2012
Posts: 1,984
Likes: 18
From: between TO and Barrie
Default

Originally Posted by Quadcammer
no spoiler
+ 1
Reply
Old Jul 26, 2013 | 10:24 AM
  #23  
alpine-al's Avatar
alpine-al
Burning Brakes
10 Year Member
 
Joined: Oct 2011
Posts: 767
Likes: 56
From: MA
Default

Originally Posted by Luckymba
... A wing on a NA car looks great if you have a mullet. ...
I bet that this NA car looks great to both mullet guys and non-mullet guys.



,
Reply
Old Jul 26, 2013 | 12:12 PM
  #24  
switch911's Avatar
switch911
Instructor
 
Joined: Jan 2013
Posts: 121
Likes: 5
From: St. Albert, AB
Default

When I bought my 997 I was looking for something without a spoiler. I didn't want the, "HEY I AM TRYING TO BE A GT3" look. Problem was the car I found that had the mileage and options I wanted happened to have an aerokit installed. I could still do without it but it has grown on me.

Reply
Old Jul 26, 2013 | 03:55 PM
  #25  
CORSASCHNELL's Avatar
CORSASCHNELL
Pro
 
Joined: Aug 2012
Posts: 508
Likes: 2
From: California USA
Default

Originally Posted by BLKonBLKC4S
You might be an aeronautical engineer, but you do not even know your own car. At 75 MPH, YOUR car deploys the rear spoiler/wing. If the car was so rear biased as you say due to the rear engine why would the high paying engineers at Porsche feel the need to add more down force at higher speeds? It must be because you know more than them and have been building cars longer..NOT! The added wing to my car and what the OP is looking for just stays up at speeds under 75. Besides the Turbo's, GT3's, and GT2's all have wings that are deployed all the time. Did Porsche s "screw up" the engineering on those cars? You might want to call them and let know...LMAO

Also, my car is in the shop now getting the GT3 front bumper and Porsche highly recommends that you have a wing on the rear.

Now that I have said all of that......I do not track my car. All of my mods for the most part are aesthetic. I really could care less what you think about me adding a wing or the GT3 front bumper for that matter. I like the way it looks and its my car. Do what you want or don't want with your own car, thats why it is yours!
I think you not considering the entire car's aerodynamics. Yes of course Porsche spent millions in aerodynamically balancing the car and yes everybody knows the rear wing deploys at 75+mph, BUT what happens if an owner just adds a spoiler here and there? That will upset the original and intended aerodynamics. No that hard to understand, is it?
Reply
Old Jul 26, 2013 | 03:59 PM
  #26  
CORSASCHNELL's Avatar
CORSASCHNELL
Pro
 
Joined: Aug 2012
Posts: 508
Likes: 2
From: California USA
Default

Originally Posted by Rotmilky
I must confess this is a little bit counterintuitive to me. I don't understand how a downward force on the rear leads to an upward force on the front. Basically in my simplistic view, the only way to lighten the front is to reduce the gravitational force pulling downward with a counter force. What creates this force? Aerodynamics is not one of my strong suits. Does pushing down on the rear do something like force more air under the car which pushes up on the front a bit?

After thinking about the handling of these cars for a bit, it seems that the wing needs to be on the front to help control the rampant understeer. I wonder if a cabrio would look good with a big wing hanging off the hood.
Think a very stiff chassis, you push down on one end and you lighten up the other end. Another way of visualizing it is when you accelerate hard from a stand still, the weight transfer causes the front wheels to lighten up and the reverse when you brake very hard.
Reply
Old Jul 31, 2013 | 11:18 AM
  #27  
Luckymba's Avatar
Luckymba
Instructor
 
Joined: Aug 2012
Posts: 111
Likes: 2
Default

So saw one with a wing today on the way to work. While I wasn't blown away, it didn't look too bad. Got me thinking how nice it is to have the flexibility we have with this car. If you want the elegant traditional look you can go stock. If you want the aggressive look, throw on a wing. So many of the other comparable brands it's either one or the other.
Reply
Old Jul 31, 2013 | 11:28 AM
  #28  
Little Green's Avatar
Little Green
Addict
Rennlist Member
 
Joined: Feb 2010
Posts: 3,838
Likes: 101
From: Hortonville, Wi
Default

I grew up loving the big tea tray cars of the 80's. a spoiler for me was one of the first things to do. I also added a front lip spoiler to help add a little downforce to the front. At speeds over 90 or so our cars get very light footed up front. Not sure it does anything but every car that leaves the factory with a fixed wing has a front lip spoiler on it.
I am not an engineer tho so what do I know
Reply




All times are GMT -3. The time now is 07:41 PM.