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      05-08-2007, 11:36 AM   #1
2m3
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Undertray panel - Best air flow management?

The front spoiler is more delicate than the previous models.

I read somewhere that it was due to the improved under tray panel to direct airflow which improve aredynamic, etc, which no longer require a big front spoiler and rear big wing spoiler.

Anybody has the picture of the underside of the car?
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      05-08-2007, 12:46 PM   #2
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Quote:
Originally Posted by 2m3 View Post
The front spoiler is more delicate than the previous models.

I read somewhere that it was due to the improved under tray panel to direct airflow which improve aredynamic, etc, which no longer require a big front spoiler and rear big wing spoiler.

Anybody has the picture of the underside of the car?
I was wondering about that. If the underside is going to have a full panel, like on the concept.
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      05-08-2007, 05:08 PM   #3
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There was a topic, pics and I reposted on this (in regards to the pics only). Search around a bit. OP: I am very curious what and where you heard/read this. All totally new to me and I am fairly well informed.
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      05-08-2007, 07:31 PM   #4
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Quote:
Originally Posted by swamp2 View Post
There was a topic, pics and I reposted on this (in regards to the pics only). Search around a bit. OP: I am very curious what and where you heard/read this. All totally new to me and I am fairly well informed.
I can't remember where I read it...most likely must be from the m3 technical guide posted in this forum also.

I know you are very well informed and correct me if my memory is way off.
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      05-14-2007, 01:24 PM   #5
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You can find a reference to this on:
http://www.bmw.com/com/en/index_highend.html
"Athletic -> Aerodynamics -> i "

Quote from the website:
"Why fight resistance when you can use it to your advantage? Thanks to the intake hole in the powerdome, the V8 high-rev engine breathes cool, fresh air. The front apron distributes the airstream directly onto the engine and transmission cooler as well as underneath the panelled underbody. In combination with the rear diffuser and spoiler, uplift is effectively minimised."

Last edited by ilron; 05-14-2007 at 01:25 PM. Reason: removed some obvious typos
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      05-14-2007, 05:49 PM   #6
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Quote:
Originally Posted by ilron View Post
You can find a reference to this on:
http://www.bmw.com/com/en/index_highend.html
"Athletic -> Aerodynamics -> i "

Quote from the website:
"Why fight resistance when you can use it to your advantage? Thanks to the intake hole in the powerdome, the V8 high-rev engine breathes cool, fresh air. The front apron distributes the airstream directly onto the engine and transmission cooler as well as underneath the panelled underbody. In combination with the rear diffuser and spoiler, uplift is effectively minimised."
Thank you.

I saw the under part of 335 cabriolet in the mag ad, but have not seen the pics for E92M3.
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      05-14-2007, 06:27 PM   #7
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Delicate

The parts I was questioning was trhe part about the new front spoiler being "more delicate" as well as it replacing requirements for other aerodynamic parts. There is no way anything on delicacy.can be known - the car ain't released.
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      05-14-2007, 07:02 PM   #8
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Quote:
Originally Posted by swamp2 View Post
The parts I was questioning was trhe part about the new front spoiler being "more delicate" as well as it replacing requirements for other aerodynamic parts. There is no way anything on delicacy.can be known - the car ain't released.
You are right. I thought it mentioned about it, but actually not.
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      05-14-2007, 10:40 PM   #9
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Underside shots

Quote:
Originally Posted by 2m3 View Post
The front spoiler is more delicate than the previous models.

I read somewhere that it was due to the improved under tray panel to direct airflow which improve aredynamic, etc, which no longer require a big front spoiler and rear big wing spoiler.

Anybody has the picture of the underside of the car?

Here's a couple--don't show that much relative to your topic, though.





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      05-14-2007, 11:45 PM   #10
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the undertray only covers the engine bay. hmmmm
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      05-21-2007, 01:23 PM   #11
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Quote:
Originally Posted by bullitt5897 View Post
the undertray only covers the engine bay. hmmmm
According to Roundel magazine, it covers from under engine all the way to rear (under the diff.)
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