Notices
928 Forum 1978-1995
Sponsored by:
Sponsored by: 928 Specialists

Mythbusters Tests The Porsche 928's Aerodynamics... In Reverse

Thread Tools
 
Search this Thread
 
Old 11-04-2010, 12:51 PM
  #16  
mark kibort
Rennlist Member
 
mark kibort's Avatar
 
Join Date: Feb 2003
Location: saratoga, ca
Posts: 29,952
Received 166 Likes on 65 Posts
Default

yes it is. just take the frontal area x the Cd and get the drag value.
hp = force x speed, so its extremely easy to get a close estimate of the total drag, and how it compares to other cars, OR what it might be if the 928 was running backward.

Originally Posted by Mike Frye
Can this be right? Seems like an exaggeration.
Old 11-04-2010, 12:57 PM
  #17  
danglerb
Nordschleife Master
 
danglerb's Avatar
 
Join Date: Oct 2006
Location: Orange, Cal
Posts: 8,575
Received 3 Likes on 3 Posts
Default

Originally Posted by U-928
Dibs on the drivetrain when they are done being idiots. Poor Euro. :-(
Wrong coast. I wonder how many people are going to be asking for bits of the remains, or if its already arranged to go to 928Intl or something? Could be all sorts of legal issues if sold to a private individual vs a dismantler.
Old 11-04-2010, 01:35 PM
  #18  
mark kibort
Rennlist Member
 
mark kibort's Avatar
 
Join Date: Feb 2003
Location: saratoga, ca
Posts: 29,952
Received 166 Likes on 65 Posts
Default

thats about right as the HP to drive the drag alone at 100mph, would be 2.35 x the value at 75mph, which would be the cube of what it was at 75mph. near 66hp at 100mph if that original figure is right. sounds reasonable to me. keep in mind, this is close to most all the cars listed in the chart.

Originally Posted by Mike Frye
At 75 mph, the original 1978 928 was losing 28 hp to drag, a noticeable deficit given its 219-hp engine.


Can this be right? Seems like an exaggeration.
Old 11-16-2010, 10:24 PM
  #19  
toofast928
Addict
Rennlist Member

 
toofast928's Avatar
 
Join Date: Oct 2003
Location: N NJ
Posts: 1,526
Likes: 0
Received 1 Like on 1 Post
Default

This could be the most air time the 928 ever received.

"The 928 backwards is about as aerodynamic as Kari Byron would be... backwards."

Last edited by toofast928; 12-09-2012 at 10:54 PM.
Old 11-16-2010, 10:57 PM
  #20  
LUCKYJACKASS
Drifting
 
LUCKYJACKASS's Avatar
 
Join Date: Oct 2008
Location: Wendell, NC
Posts: 2,760
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by toofast928
This could be the most air time the 928 ever received.

"The 928 backwards is about as aerodynamic as Kari Byron would be... backwards."

Is this the most Enzoed topic on Rennlist, or is there something worse?
Old 11-17-2010, 08:59 PM
  #21  
SeanR
Rennlist Member
 
SeanR's Avatar
 
Join Date: Apr 2006
Posts: 35,700
Received 500 Likes on 267 Posts
Default

One hour and counting.
Old 11-17-2010, 09:01 PM
  #22  
86'928S MeteorGrey
Three Wheelin'
 
86'928S MeteorGrey's Avatar
 
Join Date: Jun 2008
Location: Surprise, Arizona
Posts: 1,914
Likes: 0
Received 0 Likes on 0 Posts
Default

SWEET!
Old 11-17-2010, 10:04 PM
  #23  
SeanR
Rennlist Member
 
SeanR's Avatar
 
Join Date: Apr 2006
Posts: 35,700
Received 500 Likes on 267 Posts
Default

On now
Old 11-17-2010, 10:10 PM
  #24  
kenkawai993
Instructor
 
kenkawai993's Avatar
 
Join Date: Nov 2010
Posts: 197
Likes: 0
Received 0 Likes on 0 Posts
Default

After this episode and the air time the 928 gets, values should increase by 10%. LOL.
Old 11-17-2010, 10:11 PM
  #25  
billtool
Racer
 
billtool's Avatar
 
Join Date: Aug 2009
Location: Sussex, WI
Posts: 437
Likes: 0
Received 0 Likes on 0 Posts
Default

Interesting that they won't call the car by it's name.
Old 11-17-2010, 10:21 PM
  #26  
JWise
Rennlist Member
 
JWise's Avatar
 
Join Date: Dec 2003
Location: Oklahoma
Posts: 2,712
Received 216 Likes on 74 Posts
Default

Their 1/4 mile results in the 14 sec range are respectable, but what's up with their 0-60 runs averaging 8 seconds???

BTW-that car looks far too nice to be cut up, at least the exterior - not sure about the interior. Love the wheels, too.
Old 11-17-2010, 10:25 PM
  #27  
SeanR
Rennlist Member
 
SeanR's Avatar
 
Join Date: Apr 2006
Posts: 35,700
Received 500 Likes on 267 Posts
Default

Dont' know the year, but it looks like a Euro S car. Sounds about right speed/time wise. It is a Roger box. The 5 speed would be way slower.
Old 11-17-2010, 10:35 PM
  #28  
EspritS4s
Rennlist Member
 
EspritS4s's Avatar
 
Join Date: Jul 2002
Location: Massachusetts
Posts: 2,095
Received 1 Like on 1 Post
Default

I really, really want a 3D printer of my own!
Old 11-17-2010, 10:45 PM
  #29  
SeanR
Rennlist Member
 
SeanR's Avatar
 
Join Date: Apr 2006
Posts: 35,700
Received 500 Likes on 267 Posts
Default

Hell, the odo gear works, impressive.

And the fact that the myth is busted. Awesome.
Old 11-17-2010, 11:04 PM
  #30  
Ethre
Pro
 
Ethre's Avatar
 
Join Date: Aug 2010
Location: 3rd Rock From The Sun
Posts: 511
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by billtool
Interesting that they won't call the car by it's name.
Yeah. They were rather obvious about leaving the name out too. "A certain car" "specific vehicle" . . . etc
I noticed that they forgot to block out the PENSKE on the front of their moving truck though.

I normally like Mythbusters, but actually didn't find this episode very entertaining. Oh well, at least a 928 was present.


Quick Reply: Mythbusters Tests The Porsche 928's Aerodynamics... In Reverse



All times are GMT -3. The time now is 05:07 AM.