SN95 Mustang 1994-2004 Mustangs Member Tech & Restoration Discussion

Rear diffuser

Old 6/8/08, 01:02 PM
  #21  
FR500 Member
 
hi5.0's Avatar
 
Join Date: August 15, 2005
Location: Honolulu
Posts: 3,083
Likes: 0
Received 0 Likes on 0 Posts
that piece could be covering a fuel cell, or a part meant to fit over the existing gas tank cover/straps.
Old 6/9/08, 08:31 AM
  #22  
Member
Thread Starter
 
DethHorse's Avatar
 
Join Date: January 3, 2008
Posts: 35
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by hi5.0
that piece could be covering a fuel cell, or a part meant to fit over the existing gas tank cover/straps.
I was thinking that same thing.
Old 6/9/08, 08:42 AM
  #23  
Needs to be more Astony
 
Knight's Avatar
 
Join Date: October 4, 2004
Location: Volo, IL
Posts: 8,609
Likes: 0
Received 5 Likes on 5 Posts
A rear diffuser is point less on a sn95 stang unless you want it for looks only.

The cars underbody is in no way designed for aerodynamic purposes.

Only way it would work is be creating your own underpanels that would cover the engine, driveline and rearend gas tank.

If you did do this then you prob would want to add hood vents to release under hood heat and a transmission oil cooler, and possibly a differential oil cooler ala 2000 cobra r.

I have always thought about wanting to create somthing like this. not only would it help high speed stability but could increase highway gas mileage by a mpg or two.
Old 6/9/08, 01:35 PM
  #24  
Post *****
 
future9er24's Avatar
 
Join Date: May 13, 2004
Location: Berkeley/Redwood City, CA
Posts: 18,613
Likes: 0
Received 3 Likes on 2 Posts
That sounds a lot like what me and Pete thought up yesterday, the part about it being completely useless performancewise. Its got an interesting look but without the rest of the underpanels its pretty useless
Old 6/9/08, 04:27 PM
  #25  
 
cntchds's Avatar
 
Join Date: August 23, 2004
Location: Bay Area, California
Posts: 3,599
Likes: 0
Received 3 Likes on 2 Posts
Didn't I say all of that in my first post in this thread? Haha.
Old 6/9/08, 05:08 PM
  #26  
Post *****
 
future9er24's Avatar
 
Join Date: May 13, 2004
Location: Berkeley/Redwood City, CA
Posts: 18,613
Likes: 0
Received 3 Likes on 2 Posts
we wanted to be repetetive
Old 6/9/08, 06:18 PM
  #27  
Needs to be more Astony
 
Knight's Avatar
 
Join Date: October 4, 2004
Location: Volo, IL
Posts: 8,609
Likes: 0
Received 5 Likes on 5 Posts
I didn't read the thread at all...lol
Old 6/9/08, 08:37 PM
  #28  
 
cntchds's Avatar
 
Join Date: August 23, 2004
Location: Bay Area, California
Posts: 3,599
Likes: 0
Received 3 Likes on 2 Posts
Haha, I just wanted to take credit for sounding smart for once... Arin, we should completely aero-ify my car.

It would just take a hell of a lot of fiber glass...
Old 6/9/08, 10:53 PM
  #29  
FR500 Member
 
hi5.0's Avatar
 
Join Date: August 15, 2005
Location: Honolulu
Posts: 3,083
Likes: 0
Received 0 Likes on 0 Posts
Aluminum FTW.
Old 6/9/08, 10:59 PM
  #30  
Post *****
 
future9er24's Avatar
 
Join Date: May 13, 2004
Location: Berkeley/Redwood City, CA
Posts: 18,613
Likes: 0
Received 3 Likes on 2 Posts
You can aero your own **** car if you want, but I ain't helping. Your drag coeffecient is practically non existant compared to mine, so I don't think it even needs it
Old 6/9/08, 11:15 PM
  #31  
Mach 1 Member
 
Silver99v6's Avatar
 
Join Date: July 25, 2006
Posts: 504
Likes: 0
Received 1 Like on 1 Post
A few people drill multiple holes in the rear bumper of their sn95s to help. That is the closest thing to a rear diffuser I have seen on one of these cars. Also, all of the cars that had this done were flat out drag cars.
Old 6/9/08, 11:21 PM
  #32  
 
cntchds's Avatar
 
Join Date: August 23, 2004
Location: Bay Area, California
Posts: 3,599
Likes: 0
Received 3 Likes on 2 Posts
Yeah, for me this would just be a fun project, not a real aero enhancement. Aluminum, I would assume, is much more expensive, isn't it?
Old 6/10/08, 08:19 AM
  #33  
Needs to be more Astony
 
Knight's Avatar
 
Join Date: October 4, 2004
Location: Volo, IL
Posts: 8,609
Likes: 0
Received 5 Likes on 5 Posts
Make some fiberglass ones and make in sections that can be unscrewed and taken off to do things like chnage oil and filter and anything else that you'd need to get to easy.

DO IT!
Old 6/10/08, 08:29 AM
  #34  
Member
Thread Starter
 
DethHorse's Avatar
 
Join Date: January 3, 2008
Posts: 35
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by Knight
A rear diffuser is point less on a sn95 stang unless you want it for looks only.

The cars underbody is in no way designed for aerodynamic purposes.

Only way it would work is be creating your own underpanels that would cover the engine, driveline and rearend gas tank.

If you did do this then you prob would want to add hood vents to release under hood heat and a transmission oil cooler, and possibly a differential oil cooler ala 2000 cobra r.

I have always thought about wanting to create somthing like this. not only would it help high speed stability but could increase highway gas mileage by a mpg or two.
Aw, crap. Are you serious about the additional underpanels? I hadn't heard about that before. I was under the impression that a properly done rear diffuser would infact have an aid in the overall performance of the vehicle becuase it would decelerate the the flow of air going under the car so that iot would be at the same relative speed as the air around the car.
Old 6/10/08, 03:22 PM
  #35  
Needs to be more Astony
 
Knight's Avatar
 
Join Date: October 4, 2004
Location: Volo, IL
Posts: 8,609
Likes: 0
Received 5 Likes on 5 Posts
Originally Posted by DethHorse
Aw, crap. Are you serious about the additional underpanels? I hadn't heard about that before. I was under the impression that a properly done rear diffuser would infact have an aid in the overall performance of the vehicle becuase it would decelerate the the flow of air going under the car so that iot would be at the same relative speed as the air around the car.
It is more for controlling the turbulance of the air and even out presure zones. I would say it would increase speed of airflow under car to match the air around it.
Old 6/10/08, 04:45 PM
  #36  
Member
Thread Starter
 
DethHorse's Avatar
 
Join Date: January 3, 2008
Posts: 35
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by Knight
It is more for controlling the turbulance of the air and even out presure zones. I would say it would increase speed of airflow under car to match the air around it.
Well, I think I'm just going to drop it. I figured it would probably help overall with the Steeda front splitter I was thinking of putting on the front.
Old 6/10/08, 04:53 PM
  #37  
 
cntchds's Avatar
 
Join Date: August 23, 2004
Location: Bay Area, California
Posts: 3,599
Likes: 0
Received 3 Likes on 2 Posts
Like I said before, it can't hurt to add it, but there will be no significant changes without adding underbody modifications.
Old 6/10/08, 08:22 PM
  #38  
FR500 Member
 
hi5.0's Avatar
 
Join Date: August 15, 2005
Location: Honolulu
Posts: 3,083
Likes: 0
Received 0 Likes on 0 Posts
here's some pics from another site...

http://www.cardomain.com/ride/344858/2
Old 6/10/08, 10:31 PM
  #39  
 
cntchds's Avatar
 
Join Date: August 23, 2004
Location: Bay Area, California
Posts: 3,599
Likes: 0
Received 3 Likes on 2 Posts
I saw that when I was looking around for one, and I really don't think it flows with the car whatsoever. I'm hoping that what I'm thinking of, since it will be molded into the bumper cover itself, will have a nice flow to it as well as having a positive effect on how it looks.
Old 6/11/08, 12:20 PM
  #40  
Needs to be more Astony
 
Knight's Avatar
 
Join Date: October 4, 2004
Location: Volo, IL
Posts: 8,609
Likes: 0
Received 5 Likes on 5 Posts
It would look much better on the 94-98 since their rear bumpers are higher off the ground.

Thread Tools
Search this Thread
Quick Reply: Rear diffuser



All times are GMT -6. The time now is 07:04 PM.