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

Now available from EcoModder: ScanGauge II fuel economy gauge.  Click for details.  

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 08-30-2012, 11:56 PM   #41 (permalink)
Drive less save more
 
ecomodded's Avatar
 
Join Date: Jul 2011
Location: Vancouver Island, Canada
Posts: 1,187

Dusty - '98 VOLKSWAGEN Beetle TDI
TEAM VW AUDI Group
90 day: 60.42 mpg (US)
Thanks: 134
Thanked 154 Times in 129 Posts
When matching my car to the template i see the roof fits better up front of the template but the tail fits better at the rear of the template.
Since the rear is the main point of the template it makes sense to fit the car to the rear of the template for sizing and template placement.

__________________

1998 Beetle
TDI 1.9 AGR
k03 turbo
__________________
Coming via Europe , a
pd150 intake manifold
__________________




  Reply With Quote
Old 08-31-2012, 06:04 PM   #42 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 6,042
Thanks: 4,754
Thanked 2,016 Times in 1,161 Posts
matching

Quote:
Originally Posted by ecomodded View Post
When matching my car to the template i see the roof fits better up front of the template but the tail fits better at the rear of the template.
Since the rear is the main point of the template it makes sense to fit the car to the rear of the template for sizing and template placement.
The 'Template' must be used exactly like it is represented,matching max. roof camber locations in order for flow attachment and pressure recovery to function properly.
There's no 'wiggle' room.
__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  Reply With Quote
Old 09-04-2012, 11:27 AM   #43 (permalink)
Drive less save more
 
ecomodded's Avatar
 
Join Date: Jul 2011
Location: Vancouver Island, Canada
Posts: 1,187

Dusty - '98 VOLKSWAGEN Beetle TDI
TEAM VW AUDI Group
90 day: 60.42 mpg (US)
Thanks: 134
Thanked 154 Times in 129 Posts
I was under the impression there is some wiggle room.
I have been reading, on here , that there is allowances in the angle used of the template that still works "well".
By using the rear fit profile, the length of the "tail" is shortened.
My car fits in the profile both ways, it's roof profile is odd, it is like half a globe.
I am thinking of using the rear fit profile to make a shorty Kambak with, so you know where i a coming from.
Getting to the steeper angle right away will make the kambak perform better, i think..
__________________

1998 Beetle
TDI 1.9 AGR
k03 turbo
__________________
Coming via Europe , a
pd150 intake manifold
__________________





Last edited by ecomodded; 09-04-2012 at 11:37 AM..
  Reply With Quote
Old 09-04-2012, 05:45 PM   #44 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 6,042
Thanks: 4,754
Thanked 2,016 Times in 1,161 Posts
right away

Quote:
Originally Posted by ecomodded View Post
I was under the impression there is some wiggle room.
I have been reading, on here , that there is allowances in the angle used of the template that still works "well".
By using the rear fit profile, the length of the "tail" is shortened.
My car fits in the profile both ways, it's roof profile is odd, it is like half a globe.
I am thinking of using the rear fit profile to make a shorty Kambak with, so you know where i a coming from.
Getting to the steeper angle right away will make the kambak perform better, i think..
There are some images of VW's 3rd-gen 1-liter car online.This roofline is the 'faster' profile.If you pull the curvature down any sooner than what VW has done,you'll have separation.
We have a lot of latitude in what we can do with the front of a car,but not so for the rear end.
You can't cheat back there.This is why the 'Template' was introduced.
Follow VW and you'll be okay.
__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  Reply With Quote
The Following 3 Users Say Thank You to aerohead For This Useful Post:
2000neon (09-11-2012), christofoo (12-29-2012), ecomodded (09-05-2012)
Old 09-05-2012, 04:12 AM   #45 (permalink)
Drive less save more
 
ecomodded's Avatar
 
Join Date: Jul 2011
Location: Vancouver Island, Canada
Posts: 1,187

Dusty - '98 VOLKSWAGEN Beetle TDI
TEAM VW AUDI Group
90 day: 60.42 mpg (US)
Thanks: 134
Thanked 154 Times in 129 Posts
Thanks for the advice, Great idea using the LX1's profile.
__________________

1998 Beetle
TDI 1.9 AGR
k03 turbo
__________________
Coming via Europe , a
pd150 intake manifold
__________________




  Reply With Quote
Old 12-28-2012, 06:46 PM   #46 (permalink)
EcoModding Lurker
 
seifrob's Avatar
 
Join Date: May 2011
Location: Rumburk, Czech Rep., Europe
Posts: 57

Dášenka - '10 Dacia / Renault Logan MCV 1.5 dCi
90 day: 52.16 mpg (US)
Thanks: 6
Thanked 67 Times in 13 Posts
new feature - mirrored image

So I have finally made right-to-left version for those of you who have photograph of your car from the wrong side.

I also have a question to Aerohead, if he is still reading this thread:

what exactly are meanings of these numbers? The small size doesn't help to recognize them too.

I can identify angles on wheels (15, 10,10,10 degrees),
but I am confused with the others:
these on the ground line - Do they mean percentage of the overall length?
these around the boat-tail - is it the inclination? Could you possibly supply either a hi-res version of the drawing, or some sort of table with inclination numbers? It would be far better than try to decipher it from the image. I plan in the future to make some sort of rough boat-tail dimensions calculator.

Last edited by seifrob; 12-31-2012 at 02:59 PM..
  Reply With Quote
Old 12-30-2012, 09:32 PM   #47 (permalink)
Prime Directive Violator
 
Join Date: Jun 2012
Location: Mesa, AZ
Posts: 2,501

Bacon - '99 Subaru Forester L
90 day: 27 mpg (US)

Chorizo - '00 Honda Civic HX, baby! :D
90 day: 40.87 mpg (US)
Thanks: 335
Thanked 304 Times in 224 Posts
Great tool! Thank you so much!

Would it be possible to save us a step and copy the work area to our clipboard?

Please?
  Reply With Quote
Old 12-31-2012, 05:24 AM   #48 (permalink)
radioranger
 
Join Date: Dec 2011
Location: Canton CT
Posts: 442
Thanks: 140
Thanked 37 Times in 30 Posts
wondering if anyone has a similar plan from the top view, could help on my truck ,
  Reply With Quote
Old 12-31-2012, 02:57 PM   #49 (permalink)
EcoModding Lurker
 
seifrob's Avatar
 
Join Date: May 2011
Location: Rumburk, Czech Rep., Europe
Posts: 57

Dášenka - '10 Dacia / Renault Logan MCV 1.5 dCi
90 day: 52.16 mpg (US)
Thanks: 6
Thanked 67 Times in 13 Posts
i am working on that - aerohead has template that works both ways (side view and top view). I am trying to add also the second one.

About the clipboard - use shortcut CTRL+Print screen. Then paste to your favourite picture viewer/editor (Irfaniew, MS Paint, Photoshop, GIMP, Word...). AFAIK it is not possible to do more simple than that (using javascript).

EDIT: two templates now available - the one is more neat, the other more universal. Use as shown in Aerodynamic Streamlining Template: Part-C (post #13)

Last edited by seifrob; 01-01-2013 at 04:43 AM..
  Reply With Quote
Old 01-01-2013, 02:25 AM   #50 (permalink)
radioranger
 
Join Date: Dec 2011
Location: Canton CT
Posts: 442
Thanks: 140
Thanked 37 Times in 30 Posts
Great i was thinking of the possibility of doing a fairing in the other direction on the nose of my Ranger, it is very blunt and the rain on the top of the hood just sits there at highway speed. I was thinking something sort of like a forties car hood sitting on top of the one i have, sectioned of course or just a ships prow type of air dam, made of foam or similar with clear covers for the lights set at an angle, also in the theory angle , doesnt these extreme wing shaped extensions generate lift on the body of the car and isnt that what Pete Brock ran into with the Daytona Cobra coupe. not that we're going fast but just in theory ,

  Reply With Quote
Reply  Post New Thread

Thread Tools





Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com