PT Cruiser Forum  
Advertisements
       

Go Back   PT Cruiser Forum > General Forums > General PT Cruiser Discussions

PT Cruiser Forum

Advertisements
Is the sunroof 'wind deflector' needed?

 
Like Tree11Likes

Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 04 May 2016, 09:25 pm
wingman55's Avatar
Senior Cruiser
 
Join Date: Aug 2015
Location: Pennellville, NY
Posts: 1,616
Default Is the sunroof 'wind deflector' needed?

I like to drive with the sunroof open, but I don't like the 'wind in my hair' or the noise once you get up to speed.

For the heck of it, the other day, I reached up and pressed down on the 'wind deflector(?)' and instantly the noise was gone, and no wind in my hair (what's left of my hair that is).

SO, my question. What does this thing do, and is it necessary? Can it be removed?
160430_004 (640x480).jpg

160430_005 (640x480).jpg
__________________
2006 Limited Edition, Inferno Red, 5-speed, Bassani dual exhaust, Chrome backup light bezels, taillight trim, fuel door, antenna mount, Ventiports, door spear covers & hood prop. Silver painted lower front grille. American Racing 383 Casino wheels, w/Chrysler emblems, '02 engine cover, PT Cruiser mudguards, cargo mat. EGR Window Visors, dark gray lock pulls, dual horns, Fuzzy Dice, flames and MOPAR emblems added to front door logos, gold Chrysler emblem on rear hatch. Upgraded to RAK radio with 6 CD changer, Cassette Tape and RDS info. Name: "FIREBALL" I bought it Aug 10, 2015, with just over 35,600 miles on it.

2004 Limited Edition Platinum Series, Graphite Metallic, Standard Turbo, automatic, RBQ radio with Sirius Radio & 6 CD changer, VentShades, chrome exhaust tip, door spears, grille inserts, door lock pulls, bright pedals and steering wheel spokes. Red spoiler from a donor PT. Known as: "The RATMOBILE" I bought it Apr 28th, 2016 with 62,400 miles on it.
Reply With Quote
  #2 (permalink)  
Old 05 May 2016, 11:13 am
Handy_Cruiser's Avatar
Obsessed Cruiser
 
Join Date: Oct 2013
Location: Arkansas
Posts: 10,433
Default Re: Is the sunroof 'wind deflector' needed?

On many vehicles, the wind deflector helps eliminate the "helicopter effect". This sometimes happens when you drive fast with the sunroof open and all the windows up. It can create a beating or popping air noise similar to what a helicopter often sounds like.

You might try driving this way while holding the wind deflector down. However, having your hand up there may provide some of the same remedy as having the wind deflector in place.
__________________
Reply With Quote
  #3 (permalink)  
Old 05 May 2016, 11:23 am
Fk5 Fk5 is offline
Senior Cruiser
 
Join Date: Jul 2011
Location: Colesville, MD
Posts: 1,850
Default Re: Is the sunroof 'wind deflector' needed?

Quote:
Originally Posted by Handy_Cruiser View Post
On many vehicles, the wind deflector helps eliminate the "helicopter effect". This sometimes happens when you drive fast with the sunroof open and all the windows up. It can create a beating or popping air noise similar to what a helicopter often sounds like.

You might try driving this way while holding the wind deflector down. However, having your hand up there may provide some of the same remedy as having the wind deflector in place.
In my old Laser XT, the windows and A/C went out at the same time. In order to get some air and pay the toll at the Verrazano, I pulled the T-tops. My initial thought was "A helicopter is landing on my car!"
__________________
2003 GT 5 speed
162,000 miles

Last edited by Fk5; 05 May 2016 at 11:33 am.
Reply With Quote
  #4 (permalink)  
Old 05 May 2016, 11:57 am
wingman55's Avatar
Senior Cruiser
 
Join Date: Aug 2015
Location: Pennellville, NY
Posts: 1,616
Default Re: Is the sunroof 'wind deflector' needed?

Yeah I kinda figured something like that. They do speak of wind buffeting in the manual. The weird thing is that it actually gets really quiet with the deflector 'down' and gets noisy and windy with it up. The opposite effect.

Being a mechanical design engineer in a former life, I know that stuff does NOT get designed into a product unless: 1. It's necessary -or- 2. Marketing says so.

I did NOT try the sunroof open along with the windows open though, since I don't like the wind noise and buffeting from the windows either.

Maybe a combination will work. I'll experiment.
__________________
2006 Limited Edition, Inferno Red, 5-speed, Bassani dual exhaust, Chrome backup light bezels, taillight trim, fuel door, antenna mount, Ventiports, door spear covers & hood prop. Silver painted lower front grille. American Racing 383 Casino wheels, w/Chrysler emblems, '02 engine cover, PT Cruiser mudguards, cargo mat. EGR Window Visors, dark gray lock pulls, dual horns, Fuzzy Dice, flames and MOPAR emblems added to front door logos, gold Chrysler emblem on rear hatch. Upgraded to RAK radio with 6 CD changer, Cassette Tape and RDS info. Name: "FIREBALL" I bought it Aug 10, 2015, with just over 35,600 miles on it.

2004 Limited Edition Platinum Series, Graphite Metallic, Standard Turbo, automatic, RBQ radio with Sirius Radio & 6 CD changer, VentShades, chrome exhaust tip, door spears, grille inserts, door lock pulls, bright pedals and steering wheel spokes. Red spoiler from a donor PT. Known as: "The RATMOBILE" I bought it Apr 28th, 2016 with 62,400 miles on it.
Reply With Quote
  #5 (permalink)  
Old 09 Jun 2016, 10:07 pm
wingman55's Avatar
Senior Cruiser
 
Join Date: Aug 2015
Location: Pennellville, NY
Posts: 1,616
Default Re: Is the sunroof 'wind deflector' needed?

OK, so back on this thread. I did try opening a rear window part way, and it does get rid of some of the buffeting.

My son's fiancee just bought a 2013 Buick Encore, and when she opened the sunroof, look what I saw:

160604_022 (640x480).jpg

A soft mesh screen that pops up. I will have to take her car out on the highway some time to see if it's noisy. Maybe I can get a 'replacement' for mine if it works well.
__________________
2006 Limited Edition, Inferno Red, 5-speed, Bassani dual exhaust, Chrome backup light bezels, taillight trim, fuel door, antenna mount, Ventiports, door spear covers & hood prop. Silver painted lower front grille. American Racing 383 Casino wheels, w/Chrysler emblems, '02 engine cover, PT Cruiser mudguards, cargo mat. EGR Window Visors, dark gray lock pulls, dual horns, Fuzzy Dice, flames and MOPAR emblems added to front door logos, gold Chrysler emblem on rear hatch. Upgraded to RAK radio with 6 CD changer, Cassette Tape and RDS info. Name: "FIREBALL" I bought it Aug 10, 2015, with just over 35,600 miles on it.

2004 Limited Edition Platinum Series, Graphite Metallic, Standard Turbo, automatic, RBQ radio with Sirius Radio & 6 CD changer, VentShades, chrome exhaust tip, door spears, grille inserts, door lock pulls, bright pedals and steering wheel spokes. Red spoiler from a donor PT. Known as: "The RATMOBILE" I bought it Apr 28th, 2016 with 62,400 miles on it.
Reply With Quote
  #6 (permalink)  
Old 09 Jun 2016, 10:35 pm
NitroPT's Avatar
Obsessed Cruiser
 
Join Date: Jun 2012
Location: USA kalyfornia
Posts: 15,814
Default Re: Is the sunroof 'wind deflector' needed?

Interesting responses.....

There is a lot having to do with the vehicles speed and the air speed that determines how well the Slipstream Deflectors work on any given vehicle. It seems some use the soft screen mesh type mentioned in the previous response that will change or muffle the air noise. I have that style on the MINI.

Originally sunroof deflectors were designed to be used with all the windows up and sunroof fully opened and I believe (the engineering data on this is not clear)@60MPH max speed for best results.

The http provided below: These are a great alternative and even dont look to bad. In the many I have used over the years they all seem to do the job well at reducing the air noise and also adding to the looks. But this is only an opinion on both as I never tested them in a wind tunnel. LOL

Sunroof Deflectors SHIP FREE + Giant Selection
__________________
To view larger pictures simply "click " on the picture!

Dalai Lama
"Share you knowledge. It's the best way to achieve immortality."
ASE MASTER TECHNICIAN
Reply With Quote
  #7 (permalink)  
Old 09 Jun 2016, 11:44 pm
Handy_Cruiser's Avatar
Obsessed Cruiser
 
Join Date: Oct 2013
Location: Arkansas
Posts: 10,433
Default Re: Is the sunroof 'wind deflector' needed?

Quote:
Originally Posted by wingman55 View Post
OK, so back on this thread. I did try opening a rear window part way, and it does get rid of some of the buffeting.

My son's fiancee just bought a 2013 Buick Encore, and when she opened the sunroof, look what I saw:

Attachment 17231

A soft mesh screen that pops up. I will have to take her car out on the highway some time to see if it's noisy. Maybe I can get a 'replacement' for mine if it works well.
Most of the newer (2012 and up) Mopars also use the mesh. Our current Chrysler 300S and our previous one both had the mesh. And the new 2016 300's and Chargers have it as well.
wingman55 likes this.
__________________
Reply With Quote
  #8 (permalink)  
Old 10 Jun 2016, 09:29 am
917K's Avatar
Regular Cruiser
 
Join Date: Dec 2015
Location: Down Under (Straya)
Posts: 117
Default Re: Is the sunroof 'wind deflector' needed?

There are roof mounted wind deflectors, but they're rather unappealing hunks of plastic which I'd care not to stick on my duco (Aussie word for paint).

The inbuilt deflector in my sunroof doesn't make any difference. The only way to avoid the helicopter effect is to resist opening it all the way. Seems to be worst after 60kmph (32.7 miles). Try it in tilt position too

If I'm on the highway, I just pull the screen back all the way and leave the sunroof closed. But I'll put up with the noise on a sunny day Make sure you close the screen after you leave the car, or the roof will pinch the headliner and mark it.
wingman55 likes this.
Reply With Quote
  #9 (permalink)  
Old 10 Jun 2016, 09:42 am
Handy_Cruiser's Avatar
Obsessed Cruiser
 
Join Date: Oct 2013
Location: Arkansas
Posts: 10,433
Default Re: Is the sunroof 'wind deflector' needed?

In our 300S with the panoramic roof. we can drive 80 mph with the top open and windows up, and there's no helicopter effect. I guess I need to try holding the deflector down under the same conditions and see if there is any change.
__________________
Reply With Quote
  #10 (permalink)  
Old 10 Jun 2016, 11:09 am
NitroPT's Avatar
Obsessed Cruiser
 
Join Date: Jun 2012
Location: USA kalyfornia
Posts: 15,814
Default Re: Is the sunroof 'wind deflector' needed?

Quote:
Originally Posted by Handy_Cruiser View Post
In our 300S with the panoramic roof. we can drive 80 mph with the top open and windows up, and there's no helicopter effect. I guess I need to try holding the deflector down under the same conditions and see if there is any change.
Thats because the sunroof or by other names on your 300s unlike the PT Cruiser sun roof or other names was actually designed (not necessarily engineer's ) using programs that show air pressure movement and flow over the top of the roof area.

I have a friend that is actually an Automotive Engineer, but specifically interior design and sun roof or other names of the opening of the roof area was under his management department for developing for BMW.
__________________
To view larger pictures simply "click " on the picture!

Dalai Lama
"Share you knowledge. It's the best way to achieve immortality."
ASE MASTER TECHNICIAN
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

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
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
ONVERTIBLE WIND DEFLECTOR wind stop screen RichP Classifieds: Want To Buy 6 26 Sep 2012 07:07 pm
Wind deflector! wookirang Classifieds: For Sale/Trade 13 08 Mar 2012 12:51 pm
Wind deflector wookirang PT Cruiser Convertible Forum 1 04 Mar 2012 10:50 pm
Wind Deflector? ptragtop PT Cruiser Convertible Forum 2 19 Jan 2010 07:14 pm
sunroof wind deflector grantwildbill General PT Cruiser Discussions 6 04 Mar 2006 11:52 pm


All times are GMT -5. The time now is 12:14 pm.




Powered by vBulletin® Version 3.8.2
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
LinkBacks Enabled by vBSEO 3.6.0 PL2 © 2011, Crawlability, Inc.
vB.Sponsors