E46 BMW Social Directory E46 FAQ 3-Series Discussion Forums BMW Photo Gallery BMW 3-Series Technical Information E46 Fanatics - The Ultimate BMW Resource BMW Vendors General E46 Forum The Tire Rack's Tire Wheel Forum Forced Induction Forum The Off-Topic The E46 BMW Showroom For Sale, For Trade or Wanting to Buy

Welcome to the E46Fanatics forums. E46Fanatics is the premiere website for BMW 3 series owners around the world with interactive forums, a geographical enthusiast directory, photo galleries, and technical information for BMW enthusiasts.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us.

Go Back   E46Fanatics > E46 BMW > E46 Convertible

E46 Convertible
The E46 vert forum. Talk about dropping your E46 top here.

Reply
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 01-18-2013, 01:45 PM   #1
karitammi
Registered User
 
Join Date: Dec 2012
Location: Finland
Posts: 37
My Ride: 325 (E46) Cabrio
Ideas for a wind deflector behind back seats?

Any idea / experience for a wind deflector that leaves back seats free? I'd like to keep the back seats available, but have some wind protection.

Would this type of a glass between the back head rests help any? Any other ideas?

http://www.ebay.com/itm/Windschott-B...90722625592%26
karitammi is offline   Reply With Quote
Ads by Google

Guests, get your FREE E46Fanatics.com membership to remove this ad.
Old 01-18-2013, 02:08 PM   #2
Poncho@home
Registered User
 
Join Date: Jul 2012
Location: Laval, Quebec
Posts: 838
My Ride: MY04 330Cic ZSP
+1 for this...I'd love some wind protection as well with the rear seats still usable. my daughter sits in the back all the time
Poncho@home is offline   Reply With Quote
Old 01-19-2013, 09:50 AM   #3
SMUUUUUV
///Motorcepts ///Maintained
 
Join Date: May 2009
Location: Hempstead, NY
Posts: 1,895
My Ride: '02 330 Vert-'06 4.4
Looks good, but before I would drop $300+ on this I would just cut out some cardboard and and use electrical tape to tape it in between the rear headrests to see how much wind this thing would really block... If this things actually works, I have no idea why BMW didnt think of this a long time ago to retain the use of the rear seats......just my $0.02

Last edited by SMUUUUUV; 01-19-2013 at 09:50 AM.
SMUUUUUV is offline   Reply With Quote
Old 01-19-2013, 09:57 AM   #4
karitammi
Registered User
 
Join Date: Dec 2012
Location: Finland
Posts: 37
My Ride: 325 (E46) Cabrio
^ I agree. I thougt to do it of Plexiglas, but cardboard or plywood is a good start. I just doubt it doesn't help much.
karitammi is offline   Reply With Quote
Old 01-19-2013, 11:03 AM   #5
jetad
Registered User
 
Join Date: Jun 2012
Location: North Vancouver, BC
Posts: 15
My Ride: 2004 330cic
Can someone try this out and let us know? It is winter here now and not suitable for testing this.
jetad is offline   Reply With Quote
Old 01-19-2013, 11:16 AM   #6
mtnbound
Town Clown
 
Join Date: Nov 2002
Location: Yay Area
Posts: 15,076
My Ride: 330Ci Vert, 325iT
lawlz....I don't think anyone will want to shell out $350+ as an experiment.
__________________
**********************
Bay Area Top Dropper
Orient Blue 330 Ci Vert
**********************
mtnbound is offline   Reply With Quote
Old 01-19-2013, 05:44 PM   #7
jetad
Registered User
 
Join Date: Jun 2012
Location: North Vancouver, BC
Posts: 15
My Ride: 2004 330cic
Quote:
Originally Posted by mtnbound View Post
lawlz....I don't think anyone will want to shell out $350+ as an experiment.
I was referring to the cardboard or plywood experiment to check if it really deflects the wind.
jetad is offline   Reply With Quote
Old 01-20-2013, 09:42 AM   #8
karitammi
Registered User
 
Join Date: Dec 2012
Location: Finland
Posts: 37
My Ride: 325 (E46) Cabrio
I took thin Lexan (plexi or polycarbonate plastic) plate and U-shaped Aluminum profiles to support the plate. I just placed the deflector behind the back seat. There is still need for tune: the Lexan plate is little too thin and the U profiles too thick.



Excuse me not for taking my kids for a test drive with the top down. The outside temprerature is -8 C (18 F).
karitammi is offline   Reply With Quote
Old 01-20-2013, 11:05 AM   #9
StahlBlau
Registered User
 
Join Date: Oct 2012
Location: san diego
Posts: 8
My Ride: 2003 330Ci Vert
I can work on this possibly today. It's 75F here in San Diego.
StahlBlau is offline   Reply With Quote
Old 01-20-2013, 12:39 PM   #10
SMUUUUUV
///Motorcepts ///Maintained
 
Join Date: May 2009
Location: Hempstead, NY
Posts: 1,895
My Ride: '02 330 Vert-'06 4.4
Quote:
Originally Posted by StahlBlau View Post
I can work on this possibly today. It's 75F here in San Diego.
Any luck?
SMUUUUUV is offline   Reply With Quote
Old 02-01-2013, 11:06 AM   #11
Caseycjc
Registered User
 
Join Date: Dec 2012
Location: Ohio
Posts: 6
My Ride: 330ci convertible
Anyone ever try one of these? Not bad for $129, but looks meh. http://www.windblox.com/styles/bmw_3_series_large.htm_nr_
Attached Thumbnails
Click image for larger version

Name:	ImageUploadedByBimmerApp1359738359.830912.jpg
Views:	169
Size:	70.8 KB
ID:	488878  
Caseycjc is offline   Reply With Quote
Old 02-04-2013, 08:58 PM   #12
lsbmatt
Registered User
 
Join Date: Jun 2012
Location: bay area
Posts: 113
My Ride: 2002 vert m3 lsb smg
Quote:
Originally Posted by Caseycjc View Post
Anyone ever try one of these? Not bad for $129, but looks meh. http://www.windblox.com/styles/bmw_3_series_large.htm_nr_
That looks terrible, kinda like a taxi cab window divider. I could only imagine at high speeds that thing flinging into the back passengers faces. ... going fast I think it's fun with all the wind blowing around...

Last edited by lsbmatt; 02-04-2013 at 09:02 PM.
lsbmatt is offline   Reply With Quote
Old 02-04-2013, 09:06 PM   #13
rcsummers
Registered User
 
Join Date: Jan 2009
Location: Suburbia, NJ
Posts: 3,781
My Ride: M3
thats things ugly. better off getting a regular windscreen and customizing it to be like that
__________________
rcsummers is offline   Reply With Quote
Old 02-04-2013, 09:37 PM   #14
Redflea
Registered User
 
Join Date: Jan 2013
Location: SoCal
Posts: 177
My Ride: 2005 330Ci/2003 530i
My comments below based on just my personal experience w/this, I'm no physics/wind expert (obviously).

I think the issue is wind swirling in the rear seat area and then coming forward...in our car the primary wind we feel w/the top down is coming from the rear seats via the space between the front seats and around the front head rests.

Unless you block the wind's access to the rear seat area, I don't know how you can keep the wind out of the front...at a minimum it seems like you need some sort of barrier that blocks the space between the front seats and behind the front seat head rests (if you aren't going to block the wind's access to the rear seats w/a horizontal barrier). Putting something between the rear seat headrests doesn't seem like it would help at all.

This makes me (almost) wish I hadn't spent most of my time in physics dreaming about the beautiful brunette classmate sitting one row over and two seats up from me...

Found this...good schematic showing wind flows.

http://www.svaworld.com/content.php?content_id=1003

Last edited by Redflea; 02-04-2013 at 09:45 PM.
Redflea is offline   Reply With Quote
Old 02-05-2013, 01:16 AM   #15
karitammi
Registered User
 
Join Date: Dec 2012
Location: Finland
Posts: 37
My Ride: 325 (E46) Cabrio
It would be good to hear practical experiences from any of these solutions! My intentiation was to keep the rear seats available and I'm little hesitant to divide the front and rear rows with a plexi screen. And how the front seats operate with the plexiscreen attached to them, can yo still acces to the rear seats? If you don't care about having rear seats available, BMW OEM deflector might be a good idea.
karitammi is offline   Reply With Quote
Old 02-05-2013, 09:04 AM   #16
Redflea
Registered User
 
Join Date: Jan 2013
Location: SoCal
Posts: 177
My Ride: 2005 330Ci/2003 530i
Quote:
Originally Posted by karitammi View Post
It would be good to hear practical experiences from any of these solutions! My intentiation was to keep the rear seats available and I'm little hesitant to divide the front and rear rows with a plexi screen. And how the front seats operate with the plexiscreen attached to them, can yo still acces to the rear seats? If you don't care about having rear seats available, BMW OEM deflector might be a good idea.
You have to be careful about putting something in front of rear seat occupants that would injure them in an accident if they hit it when the car stopped suddenly, or fly forward and injure the people in the front seat. A homebrew like this seems very risky to me....

Sent from my Galaxy Nexus using Bimmer App
Redflea is offline   Reply With Quote
Old 02-05-2013, 02:24 PM   #17
E46DrEaMeR
Registered User
 
Join Date: Jul 2010
Location: UK
Posts: 277
My Ride: 2002 320Cic
I made this for an Escort I had a few years ago! it wasn't the best engineered but it worked


__________________
It's a ragtop thing....you wouldn't understand

Last edited by E46DrEaMeR; 02-05-2013 at 02:46 PM.
E46DrEaMeR is offline   Reply With Quote
Old 02-05-2013, 03:54 PM   #18
Redflea
Registered User
 
Join Date: Jan 2013
Location: SoCal
Posts: 177
My Ride: 2005 330Ci/2003 530i
Quote:
Originally Posted by E46DrEaMeR View Post
I made this for an Escort I had a few years ago! it wasn't the best engineered but it worked
Better than I could do.

How about turbulence through the area between the front seats below your wind deflector - was that still present?

Glad the OEM BMW deflector I got for my wife's car is arriving today, otherwise I'd be tempted to try a DIY and would end up with a crappy result and angry wife.
Redflea is offline   Reply With Quote
Old 02-05-2013, 07:19 PM   #19
sgoetz628
Registered User
 
Join Date: Mar 2008
Location: Connecticut
Posts: 334
My Ride: 2002 330 CiC
Quote:
Originally Posted by karitammi View Post
Any idea / experience for a wind deflector that leaves back seats free? I'd like to keep the back seats available, but have some wind protection.

Would this type of a glass between the back head rests help any? Any other ideas?

http://www.ebay.com/itm/Windschott-B...90722625592%26
I would look closely at how Mercedes and/or Audi does it. Take some pictures, then go back to your drawing board. Based on the picture you posted, you seem to be well on your way.
As for the other stuff shown, forget about them. You don't want a windblock between the front and rear seats. That separates the two rows - like in a taxi, and I would guess makes the back seat windy as hell. The other one shown, the plexiglass between the two rear headrests, look like it would help, but at the same time the developers of that product are helping themselves to your pocket.

So, again, I would look at Mercedes and I think Audi, too.
__________________
I love my car as much today as the day I bought it
sgoetz628 is offline   Reply With Quote
Old 02-06-2013, 11:35 AM   #20
E46DrEaMeR
Registered User
 
Join Date: Jul 2010
Location: UK
Posts: 277
My Ride: 2002 320Cic
Quote:
Originally Posted by Redflea View Post
Better than I could do.

How about turbulence through the area between the front seats below your wind deflector - was that still present?

Glad the OEM BMW deflector I got for my wife's car is arriving today, otherwise I'd be tempted to try a DIY and would end up with a crappy result and angry wife.
there was very little to be honest and at the time I had quite long hair and without the (windjammer) in place I used to get my face whipped by my hair blowing in the wind but with it in place there was hardly any, like I said it worked!!
__________________
It's a ragtop thing....you wouldn't understand
E46DrEaMeR is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

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 On
Censor is ON





All times are GMT -5. The time now is 02:00 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
(c) 1999 - 2011 performanceIX Inc - privacy policy - terms of use