E90Post
 


ECS BMW
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Cosmetic and Lighting Modifications (exterior/interior) > Which Bodykits are Wind-tunnel Tested??



Reply
 
Thread Tools Search this Thread
      07-05-2007, 07:33 AM   #1
RSXtypeS
New Member
 
Drives: RSX
Join Date: Sep 2006
Location: California

Posts: 5
iTrader: (0)

Which Bodykits are Wind-tunnel Tested??

Hi, just gotten my new E90 and going to install a bodykit, but would like to which bodykits are wind-tunnel tested as in not only looks good but are actually functional.

I am keen on the Kerscher's kit, but not able to ascertain whether it is functional. Anyone can throw some light on this??

Correct me if i am wrong, only M-tech and AC-Schnitzer's are wind-tunnel tested right?
RSXtypeS is offline  
0
Reply With Quote
      07-05-2007, 09:18 AM   #2
BigDog
Captain
 
Drives: E90 and E65
Join Date: Jul 2005
Location: Chicago

Posts: 729
iTrader: (1)

M-Tech i believe is
__________________
BigDog is offline   United_States
0
Reply With Quote
      07-05-2007, 11:42 AM   #3
magmd
Major General
 
magmd's Avatar
 
Drives: '06 330i
Join Date: Aug 2005
Location: Torrance, CA

Posts: 5,272
iTrader: (13)

Garage List
2006 330i  [0.00]
Felix kits.....I am sure of it.
__________________
2006 330i | Black Sapphire Metallic | Step Auto | Navi with iDr | Sports Pkg |OEM Rear Spoiler | 3M CS35 Tint | H&R Sport Springs | Koni Yellows | Advan RS Racing Hypersilver: 19x9 et22 19x10 et20
magmd is offline   United_States
0
Reply With Quote
      07-05-2007, 11:42 AM   #4
KL2DC
Moderator
 
KL2DC's Avatar
 
Drives: E90 328i, E85 Z4 3.0i
Join Date: Jan 2006
Location: DC Metro

Posts: 17,751
iTrader: (22)

Garage List
2011 E90 328i  [0.00]
2006 E85 Z4 3.0i  [0.00]
Send a message via MSN to KL2DC
Quote:
Originally Posted by magmd View Post
Felix kits.....I am sure of it.
__________________

Official DC Metro Registry - Current, New & Prospective Area Members Roll Call!
KL2DC is offline   United_States
0
Reply With Quote
      07-05-2007, 11:45 AM   #5
ArmyBimmerDude
Major General
 
ArmyBimmerDude's Avatar
 
Drives: Lola
Join Date: Nov 2006
Location: Georgia

Posts: 5,503
iTrader: (3)

Garage List
Send a message via AIM to ArmyBimmerDude Send a message via Yahoo to ArmyBimmerDude
Hamann
__________________
2007 E92 Montego Blue 335i
ArmyBimmerDude is offline   United_States
0
Reply With Quote
      07-05-2007, 12:11 PM   #6
Revlis
Now With 33% MORE Sarcasm Free!
 
Revlis's Avatar
 
Drives: 335is
Join Date: Feb 2007
Location: Seattle Area, WA

Posts: 3,446
iTrader: (0)

Uh, OEM Most likely and that's it...

I doubt there is a single back yard manufacturer that even knows what Fluid dynamics is. Let alone actually conduct wind tunnel testing. They copy a design template taken from an OEM piece, make a mold, start futzing with it till they think it looks "COOL", then attempt to market it.

ACS, HAMMAN, kreiger, and the rest are barely even designers lately, let alone in possession of any real engineers so I doubt they have even the slightest clue as to how their "aero" stuff really works. By looking at some of their stuff it's unlikely they have a clue design wise either...
__________________

'13 TiAg over Coral, 335is | DCT | Prem | L7 | Nav/Idrive | CA | 19" "-------"

A BMW is Just a Car, it doesn't make you smart, handsome, cool, or wealthy. Get over it.
Revlis is offline   United_States
0
Reply With Quote
      07-05-2007, 12:20 PM   #7
Revlis
Now With 33% MORE Sarcasm Free!
 
Revlis's Avatar
 
Drives: 335is
Join Date: Feb 2007
Location: Seattle Area, WA

Posts: 3,446
iTrader: (0)

Quote:
Originally Posted by RSXtypeS View Post
Hi, just gotten my new E90 and going to install a bodykit, but would like to which bodykits are wind-tunnel tested as in not only looks good but are actually functional.

I am keen on the Kerscher's kit, but not able to ascertain whether it is functional. Anyone can throw some light on this??

Correct me if i am wrong, only M-tech and AC-Schnitzer's are wind-tunnel tested right?
A better answer to your question would be buy whatever kit you like. For all practical purposes wind tunnel or not there isn't a kit out there that will have any REAL positive effect on the handling of your car in the real world. Negative effects sure, increased wind noise, possible increased vibration, increased drag, and decreased re-sale are all possibilities.

None of them are really going to provide any performance benefit on the street at anything under about 100MPH or so.
__________________

'13 TiAg over Coral, 335is | DCT | Prem | L7 | Nav/Idrive | CA | 19" "-------"

A BMW is Just a Car, it doesn't make you smart, handsome, cool, or wealthy. Get over it.
Revlis is offline   United_States
0
Reply With Quote
      07-06-2007, 05:48 PM   #8
danielg
Lieutenant
 
Drives: 07 335i sedan
Join Date: May 2007
Location: Bay Area, CA

Posts: 528
iTrader: (0)

These guys can make some completely one off stuff. By looking at the quality of the work, I KNOW that they are aerodynamically efficient.






Last edited by danielg; 07-06-2007 at 05:49 PM. Reason: picture didnt work
danielg is offline  
0
Reply With Quote
      07-06-2007, 06:05 PM   #9
Revlis
Now With 33% MORE Sarcasm Free!
 
Revlis's Avatar
 
Drives: 335is
Join Date: Feb 2007
Location: Seattle Area, WA

Posts: 3,446
iTrader: (0)

MAn, I'm a negative prick sometimes...

But, My deal is that the quality of stuck-on aero bits seems to have gone in the crapper. Ten years ago it seemed to me that Kits from ACS, and the like worked very well with the design of the vehicle. The kits really were a compliment not a detraction. Now, it's seems the designer have been watching too much Anime and are simply trying to draw pretty shapes with little thought to the overall look....

Freaking love the Cardboard Commando...
__________________

'13 TiAg over Coral, 335is | DCT | Prem | L7 | Nav/Idrive | CA | 19" "-------"

A BMW is Just a Car, it doesn't make you smart, handsome, cool, or wealthy. Get over it.
Revlis is offline   United_States
0
Reply With Quote
      07-06-2007, 06:16 PM   #10
BMXtreme
Lieutenant Colonel
 
BMXtreme's Avatar
 
Drives: E60 535i
Join Date: May 2007
Location: Redmond, WA

Posts: 1,657
iTrader: (3)

Garage List
2006 330i  [0.00]
Is that a huge NOS bottle there?
BMXtreme is offline  
0
Reply With Quote
      07-06-2007, 07:16 PM   #11
Don Nguyen
Banned
 
Drives: '99 M3 Vert, '95 M3 Coupe, 964
Join Date: Apr 2006
Location: Irvine, CA

Posts: 1,334
iTrader: (4)

Send a message via AIM to Don Nguyen
+1 on what some of the guys above me said.

Also, most likely, if you are asking this question, it won't really matter for you.

Where it starts getting important is if you are trying to make a track dedicated car, where you are seeing 90mph+ speeds all the time, and need that extra d-force for the corners and straights.

Other wise, on the streets, you shouldn't have to worry about it.
Don Nguyen is offline  
0
Reply With Quote
      07-06-2007, 08:32 PM   #12
e90sexion
E 9 0 S E X I O N
 
e90sexion's Avatar
 
Drives: M3, Z4MC
Join Date: Sep 2006
Location: Vancouver/WA

Posts: 6,238
iTrader: (16)

does it really matter.. unless you are full track guy.
e90sexion is online now   Canada
0
Reply With Quote
      07-07-2007, 08:04 PM   #13
JmanE55
Lieutenant
 
JmanE55's Avatar
 
Drives: 07 335i Coupe
Join Date: Jun 2007
Location: San Diego

Posts: 599
iTrader: (0)

Garage List
09 C4S  [0.00]
2007 E92  [0.00]
2006 CLS55  [0.00]
2006 E55  [0.00]
Quote:
Originally Posted by danielg View Post
These guys can make some completely one off stuff. By looking at the quality of the work, I KNOW that they are aerodynamically efficient.





LMAO.
JmanE55 is offline   United_States
0
Reply With Quote
      07-07-2007, 09:29 PM   #14
ward
Major General
 
Drives: F
Join Date: May 2005
Location: T

Posts: 6,162
iTrader: (0)

a bodykit is not a performance adder

a bodykit reduces performance by adding weight and hurting aero


if you think it makes your car look better, that's your perogative but why not take the money and make the car handle better instead?
ward is offline  
0
Reply With Quote
      07-07-2007, 09:32 PM   #15
Don Nguyen
Banned
 
Drives: '99 M3 Vert, '95 M3 Coupe, 964
Join Date: Apr 2006
Location: Irvine, CA

Posts: 1,334
iTrader: (4)

Send a message via AIM to Don Nguyen
Quote:
Originally Posted by ward View Post
a bodykit is not a performance adder

a bodykit reduces performance by adding weight and hurting aero


if you think it makes your car look better, that's your perogative but why not take the money and make the car handle better instead?
That isn't always true.
Don Nguyen is offline  
0
Reply With Quote
      07-07-2007, 09:51 PM   #16
Cadillac Johnson
Free taco with stolen base
 
Cadillac Johnson's Avatar
 
Drives: 335i? GTR? RS5?
Join Date: Jun 2007
Location: Milwaukee

Posts: 639
iTrader: (0)

Quote:
Originally Posted by ward View Post
a bodykit is not a performance adder

a bodykit reduces performance by adding weight and hurting aero


if you think it makes your car look better, that's your perogative but why not take the money and make the car handle better instead?
Sometimes a bodykit is a performance adder, problem is, as this thread asks, not all, or very few are wind tunnel tested. A wind tunnel tested kit will create downforce, and will help track times, but are also very expensive. If your into drag racing, one of these kits are not a good idea, because by adding downforce, you are increasing drag.

Bodykits come it different materials, plain fiberglass is probly heavier than OEM plastics. Carbon fiber or carbon reinforced plastics, or carbon reinforced fiberglass is usually lighter. And, again, depending on the design can help or hurt aero depending on the use.

Bodykits are all about personal style, some people want to set their car apart from the masses. A bodykit is a good way to do this. If you like the way a bodykit looks, then go for it, it's your car. If you've added everything you can to help handling, what's left? Aero enhancements, for those that are trying to squeeze every 1/10th out of a lap, a bodykit can certainly help. Try telling these people that a bodykit is not a performance adder..
Cadillac Johnson is offline  
0
Reply With Quote
      07-07-2007, 11:17 PM   #17
ward
Major General
 
Drives: F
Join Date: May 2005
Location: T

Posts: 6,162
iTrader: (0)

Quote:
Originally Posted by Don************ View Post
That isn't always true.
we're limited to 155 mph, and I've been out to a few different tracks in a decently powered car and hit about 118 at a max. Even on big tracks like Laguna, Buttonwillow, Thunderhill you're not going that fast.


I know you're selling these kits to pay your bills, so you've got a vested interest in keeping the uninformed uninformed, but it's funny that these people actually think they're making their car handle better or go faster by taping some plastic to them.
ward is offline  
0
Reply With Quote
      07-07-2007, 11:21 PM   #18
Vegas_Sirk
Its All About The Offset
 
Vegas_Sirk's Avatar
 
Drives: 2011 E90 M3 ZCP
Join Date: Feb 2007
Location: Where you come to vacation and go home on probation: Vegas

Posts: 3,544
iTrader: (11)

Garage List
Send a message via AIM to Vegas_Sirk
Varis track tests all their kits and I was told they Wind tunnel test as well.

www.varis.co.jp
__________________

AKA M3This (changed my user name ) | M3 Build Thread | E61 Build Thread
Vegas_Sirk is offline   United_States
0
Reply With Quote
      07-07-2007, 11:22 PM   #19
danielg
Lieutenant
 
Drives: 07 335i sedan
Join Date: May 2007
Location: Bay Area, CA

Posts: 528
iTrader: (0)

Quote:
Originally Posted by ward View Post


I know you're selling these kits to pay your bills, so you've got a vested interest in keeping the uninformed uninformed, but it's funny that these people actually think they're making their car handle better or go faster by taping some plastic to them.
See the post above you.
danielg is offline  
0
Reply With Quote
      07-07-2007, 11:24 PM   #20
danielg
Lieutenant
 
Drives: 07 335i sedan
Join Date: May 2007
Location: Bay Area, CA

Posts: 528
iTrader: (0)

minus the adding because you like it

Some are lighter than your OEM pieces, and can aid with downforce.

Again, this is only if you have a full track car. Street driven, mildly modded vehicles not apply.
danielg is offline  
0
Reply With Quote
      07-07-2007, 11:24 PM   #21
Vegas_Sirk
Its All About The Offset
 
Vegas_Sirk's Avatar
 
Drives: 2011 E90 M3 ZCP
Join Date: Feb 2007
Location: Where you come to vacation and go home on probation: Vegas

Posts: 3,544
iTrader: (11)

Garage List
Send a message via AIM to Vegas_Sirk
Quote:
Originally Posted by ward View Post
we're limited to 155 mph, and I've been out to a few different tracks in a decently powered car and hit about 118 at a max. Even on big tracks like Laguna, Buttonwillow, Thunderhill you're not going that fast.


I know you're selling these kits to pay your bills, so you've got a vested interest in keeping the uninformed uninformed, but it's funny that these people actually think they're making their car handle better or go faster by taping some plastic to them.

Not true ... Aero parts do in fact help cars handle better. Depends thou on who and what you buy... Here is an example of Varis Parts:



If you look most Time Attack cars run large spoilers, diffusers and splitters/ lips of sorts to increase down force to help keep the car better planted on the track and reduce lift. Under car diffusers will also help prevent "parachute" effect that happens when a car is traveling fwd and the air get caught under the car in turn creating drag and making the car slower.
__________________

AKA M3This (changed my user name ) | M3 Build Thread | E61 Build Thread
Vegas_Sirk is offline   United_States
0
Reply With Quote
      07-08-2007, 10:29 AM   #22
T-MC-G
Captain
 
T-MC-G's Avatar
 
Drives: e90 325i
Join Date: Jan 2006
Location: Trier, Germany

Posts: 671
iTrader: (5)

Body kits are a pain in the arse. I feel like it is a hit or missed based on the rest of your car, such as wheels or drop. You could get it all done up and have it look goofy, or it will look amazing.
__________________

"tell me what you don't like about yourself..."
T-MC-G is offline  
0
Reply With Quote
Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 09:12 PM.




e90post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST