Go Back   EcoModder Forum > EcoModding > Aerodynamics
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 02-18-2012, 03:17 PM   #1 (permalink)
...beats walking...
 
Join Date: Jul 2009
Location: .
Posts: 6,190
Thanks: 179
Thanked 1,525 Times in 1,126 Posts
How JAGUAR did aerodynamics

...some interesting reading and pictures here:

Concepts and prototypes : Jaguar XJ21 | AROnline

  Reply With Quote
The Following 2 Users Say Thank You to gone-ot For This Useful Post:
aerohead (02-18-2012), California98Civic (02-24-2012)
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 02-18-2012, 03:49 PM   #2 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 15,883
Thanks: 23,957
Thanked 7,219 Times in 4,646 Posts
Cd

I did a speed-read through the article.Didn't see any drag data.
The original 1969 Datsun(Nissan) 240 Z had Cd 0.546.
The original E Type was estimated @ Cd 0.45.
  Reply With Quote
Old 02-18-2012, 06:54 PM   #3 (permalink)
GRU
Master EcoModder
 
GRU's Avatar
 
Join Date: Oct 2011
Location: Windsor ON Canada
Posts: 373

silver bullet - '00 Honda Civic
90 day: 34.41 mpg (US)
Thanks: 21
Thanked 37 Times in 32 Posts
Quote:
Originally Posted by aerohead View Post
I did a speed-read through the article.Didn't see any drag data.
The original 1969 Datsun(Nissan) 240 Z had Cd 0.546.
The original E Type was estimated @ Cd 0.45.
It's so weird how such sporty looking cars back in the day had terrieble Cd, the newer SUV's have a better Cd than the 240z
__________________

  Reply With Quote
Old 02-19-2012, 11:12 PM   #4 (permalink)
Banned
 
Join Date: Oct 2009
Location: Fort Worth, Texas
Posts: 2,442

2004 CTD - '04 DODGE RAM 2500 SLT
Team Cummins
90 day: 19.36 mpg (US)
Thanks: 1,422
Thanked 737 Times in 557 Posts
Nice read, thanks. Just today saw an XJS in Robstown, TX at the truckstop.
  Reply With Quote
Old 02-20-2012, 12:05 AM   #5 (permalink)
Wanting more for less
 
D.O.G.'s Avatar
 
Join Date: Jan 2011
Location: New South Wales, Australia
Posts: 313

Metric - '94 Honda Magna 250
Motorcycle
90 day: 69.83 mpg (US)

RedCelica - '94 Toyota Celica ZR
90 day: 35.97 mpg (US)

i30 - '12 Hyundai i30 Elite
90 day: 39.84 mpg (US)

i30-22 - '12 Hyundai i30 Elite
90 day: 39.22 mpg (US)
Thanks: 23
Thanked 73 Times in 45 Posts
Quote:
Originally Posted by aerohead View Post
I did a speed-read through the article.Didn't see any drag data.
The original 1969 Datsun(Nissan) 240 Z had Cd 0.546.
The original E Type was estimated @ Cd 0.45.
Are you sure of that 240Z Cd figure?
I've seen 0.465 or 0.467 quoted before, but nothing that high.
At least Datsun tried harder with the 280zx, it's usually quoted as 0.385
  Reply With Quote
Old 02-20-2012, 10:53 PM   #6 (permalink)
Master EcoModder
 
Sven7's Avatar
 
Join Date: Aug 2011
Location: Warren, MI
Posts: 2,456

Boo Radley - '65 Ford F100
90 day: 13.28 mpg (US)
Thanks: 782
Thanked 668 Times in 410 Posts
If I did my math right this site cites the S30 Fairlady at 0.396 Cd.

Nissan Fairlady Z S30 2.4 (1969) - technical specifications of 1969 Nissan Fairlady Z S30 2.4

This says "4", which I take as 0.4 Cd.

http://www.autospecs.info/CarSpecs/1...fairlady-z-s30

Man, those Brits had some uuuuugly car designs. Good they stuck with the XKE.
__________________
He gave me a dollar. A blood-soaked dollar.
I cannot get the spot out but it's okay; It still works in the store
  Reply With Quote
Old 02-20-2012, 11:29 PM   #7 (permalink)
Master EcoModder
 
Join Date: Jan 2008
Location: Victoria , Australia.
Posts: 499
Thanks: 20
Thanked 46 Times in 33 Posts
Jaguar had as many misses with their aero work as they did hits.

The C type overheated and all cars failed to finish at Le Mans. The D type did better.
The E type had a number about equal to a VW Kombi bus...around .45 as mentioned above.
The early XJ's did little better with .41 but the number was quoted with so many "adjustments" is was virtually meaningless.

The managed somewhat better after ditching Malcom Sayer and getting people under Ford's management who actually knew what they were doing.

Peter.
  Reply With Quote
Old 02-21-2012, 06:08 PM   #8 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 15,883
Thanks: 23,957
Thanked 7,219 Times in 4,646 Posts
weird

Quote:
Originally Posted by GRU View Post
It's so weird how such sporty looking cars back in the day had terrieble Cd, the newer SUV's have a better Cd than the 240z
No kidding! Most cars,vans,and SUVs today have lower Cds than the Corvette had when I was in college.
  Reply With Quote
Old 02-21-2012, 06:22 PM   #9 (permalink)
UFO
Master EcoModder
 
UFO's Avatar
 
Join Date: Sep 2010
Location: Denver, CO
Posts: 1,300

Colorado - '17 Chevrolet Colorado 4x4 LT
90 day: 23.07 mpg (US)
Thanks: 315
Thanked 179 Times in 138 Posts
Quote:
Originally Posted by aerohead View Post
No kidding! Most cars,vans,and SUVs today have lower Cds than the Corvette had when I was in college.
Fortunately we can still bash them with their enormous frontal area.

I love my 280Z.

__________________
I'm not coasting, I'm shifting slowly.
  Reply With Quote
The Following User Says Thank You to UFO For This Useful Post:
Cd (02-24-2012)
Old 02-24-2012, 04:33 AM   #10 (permalink)
Cd
Ultimate Fail
 
Cd's Avatar
 
Join Date: Feb 2008
Location: Austin,Texas
Posts: 3,585
Thanks: 2,872
Thanked 1,121 Times in 679 Posts
Quote:
Originally Posted by D.O.G. View Post
Are you sure of that 240Z Cd figure?
I've seen 0.465 or 0.467 quoted before, but nothing that high.
At least Datsun tried harder with the 280zx, it's usually quoted as 0.385
I second that figure based on several sources.
Datsun/Nissan actually performed water tunnel testing on the 240Z .

I used to have a Z car and it was like slamming on the brakes every time I tried to coast in that car. Absolutely horrible aerodynamics for such a sleek looking design.

  Reply With Quote
Reply  Post New Thread






Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com