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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 01-06-2014, 04:22 PM   #1 (permalink)
EcoModding Lurker
 
Join Date: Dec 2013
Location: Denmark
Posts: 19

Ulven - '02 VW Lupo 3L
90 day: 76.16 mpg (US)
Thanks: 2
Thanked 7 Times in 5 Posts
Front wheel well cover

I am slowly starting to make plans for the front bumper on my lupo 3l that I will make this summer in glass fiber.
In that process I was thinking about making front wheel well deflecter but then I saw aerocivics car and the total well covers.

Does this have an impact on brakes and other mechanics inside the well ?? Is it safe to do

If you make the covers could you address the possible heat issue with some air tubes from the front bumper leading the air into the well ??

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 01-06-2014, 04:53 PM   #2 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 15,861
Thanks: 23,922
Thanked 7,207 Times in 4,640 Posts
heat

Quote:
Originally Posted by Walbum View Post
I am slowly starting to make plans for the front bumper on my lupo 3l that I will make this summer in glass fiber.
In that process I was thinking about making front wheel well deflecter but then I saw aerocivics car and the total well covers.

Does this have an impact on brakes and other mechanics inside the well ?? Is it safe to do

If you make the covers could you address the possible heat issue with some air tubes from the front bumper leading the air into the well ??
*The leakage of air between the tire and wheel well should be sufficient to carry the heat rejected from the brakes under 'normal' stopping.
*The brake rotors themselves should have enough mass to store the frictional energy of a full, panic-stop without warpage.
*The wheel bearing grease should be good to 250-degrees F.
*If you have access to an infrared,remote pyrometer,you could measure the actual hub temperatures on the car after a hard stop.
------------------------------------------------------------------------
*Under steady highway driving,the friction energy is a function of power transferred,and with reduced aerodynamic drag,the required road load horsepower is also reduced,so in effect,everything runs cooler.
*If you 'build light',you won't be adding significant mass/ inertia,the kinetic energy of which, must be dissipated as heat under hard deceleration.
*Dedicated ram-air cooling ducts from the forward stagnation area to the rotors could always be added should you feel the need.
__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  Reply With Quote
The Following User Says Thank You to aerohead For This Useful Post:
UltArc (01-10-2014)
Old 01-06-2014, 05:01 PM   #3 (permalink)
(:
 
Frank Lee's Avatar
 
Join Date: Jan 2008
Location: up north
Posts: 12,762

Blue - '93 Ford Tempo
Last 3: 27.29 mpg (US)

F150 - '94 Ford F150 XLT 4x4
90 day: 18.5 mpg (US)

Sport Coupe - '92 Ford Tempo GL
Last 3: 69.62 mpg (US)

ShWing! - '82 honda gold wing Interstate
90 day: 33.65 mpg (US)

Moon Unit - '98 Mercury Sable LX Wagon
90 day: 21.24 mpg (US)
Thanks: 1,585
Thanked 3,555 Times in 2,218 Posts
Looks like a sure recipe to perish in a fireball of death.
__________________


  Reply With Quote
Old 01-06-2014, 06:22 PM   #4 (permalink)
EcoModding Lurker
 
Join Date: Dec 2013
Location: Denmark
Posts: 19

Ulven - '02 VW Lupo 3L
90 day: 76.16 mpg (US)
Thanks: 2
Thanked 7 Times in 5 Posts
Quote:
Looks like a sure recipe to perish in a fireball of death.
Care to explain frank ?
  Reply With Quote
Old 01-06-2014, 06:27 PM   #5 (permalink)
(:
 
Frank Lee's Avatar
 
Join Date: Jan 2008
Location: up north
Posts: 12,762

Blue - '93 Ford Tempo
Last 3: 27.29 mpg (US)

F150 - '94 Ford F150 XLT 4x4
90 day: 18.5 mpg (US)

Sport Coupe - '92 Ford Tempo GL
Last 3: 69.62 mpg (US)

ShWing! - '82 honda gold wing Interstate
90 day: 33.65 mpg (US)

Moon Unit - '98 Mercury Sable LX Wagon
90 day: 21.24 mpg (US)
Thanks: 1,585
Thanked 3,555 Times in 2,218 Posts
How hard do you use your brakes?
__________________


  Reply With Quote
Old 01-07-2014, 01:29 AM   #6 (permalink)
T-100 Road Warrior
 
BamZipPow's Avatar
 
Join Date: Apr 2008
Location: The Woodlands, TX
Posts: 1,920

BZP T-100 (2010) - '98 Toyota T-100 ext cab - 3.4L/auto SR5
Last 3: 24 mpg (US)

BZP T-100 (2011) - '98 Toyota T-100 ext cab - 3.4L/auto SR5
Last 3: 23.66 mpg (US)

BZP T-100 (2009) - '98 Toyota T-100 ext cab - 3.4L/auto SR5
Last 3: 19.01 mpg (US)

BZP T-100 (2012) - '98 Toyota T-100 ext cab - 3.4L/auto SR5
Last 3: 25.45 mpg (US)

BZP T-100 (2013) - '98 Toyota T-100 SR5
Last 3: 25.79 mpg (US)

BZP T-100 (2014) - '98 Toyota T-100 SR5
Last 3: 23.18 mpg (US)

BZP T-100 (2015) - '98 Toyota T-100 SR5
Last 3: 23.85 mpg (US)

BZP T-100 (2016) - '98 Toyota T-100 SR5
Last 3: 17.62 mpg (US)

BZP T-100 (2017) - '98 Toyota T-100 SR5
90 day: 20.78 mpg (US)

BZP T-100 (2018) - '98 Toyota T-100 SR5
90 day: 20.19 mpg (US)

BZP T-100 (2019) - '98 Toyota T-100 SR5

BZP T-100 (2020) - '98 Toyota T-100 SR5

2012 Scion iQ - '12 Scion iQ Base
Thanks: 3,479
Thanked 1,395 Times in 968 Posts
Send a message via ICQ to BamZipPow
You could even go with some forced air cooling fer the brakes...automatically activated when the temp rises above a certain temp.
__________________
Dark Aero-The world's first aerodynamic single wheel boat tail!

  Reply With Quote
Old 01-07-2014, 04:39 AM   #7 (permalink)
EcoModding Lurker
 
Join Date: Dec 2013
Location: Denmark
Posts: 19

Ulven - '02 VW Lupo 3L
90 day: 76.16 mpg (US)
Thanks: 2
Thanked 7 Times in 5 Posts
Frank I try to use them as little as possible..
The transmission in lupo 3l is a Manuel transmission with an automated changer. The lupo engine breaks a lot because of that.
The lupo 3l came stock with 15mm break discs to save weight but pretty much everyone here in Denmark switch to 18mm discs as the caliber is from a vw polo and can handle 18mm.
For heat issues I could even go for ventilated discs if heat on the discs is a problem.
  Reply With Quote
Old 01-07-2014, 06:41 AM   #8 (permalink)
Master EcoModder
 
aardvarcus's Avatar
 
Join Date: Apr 2012
Location: Evensville, TN
Posts: 676

Deep Blue - '94 GMC Suburban K2500 SLE
90 day: 23.75 mpg (US)

Griffin (T4R) - '99 Toyota 4Runner SR5
90 day: 25.43 mpg (US)
Thanks: 237
Thanked 580 Times in 322 Posts
You should have sufficient airflow under the car hitting your tire and wheel on the inside, unless you have added deflectors or something else similar in front of them. Remember the air flow under the front part of your car is typically at about a 30 degree angle.

---DELETED---
Someone asked about forced air brake cooling using ducts. These create constant drag as they constantly are ducting the air cooling the brakes whether they need it or not. I explain a way to use the brake light signal to turn on/off the ducts, so that they do not create drag when they are not needed. Apparently this is not welcome.
---DELETED---

Last edited by aardvarcus; 01-08-2014 at 08:06 AM..
  Reply With Quote
Old 01-07-2014, 11:51 AM   #9 (permalink)
(:
 
Frank Lee's Avatar
 
Join Date: Jan 2008
Location: up north
Posts: 12,762

Blue - '93 Ford Tempo
Last 3: 27.29 mpg (US)

F150 - '94 Ford F150 XLT 4x4
90 day: 18.5 mpg (US)

Sport Coupe - '92 Ford Tempo GL
Last 3: 69.62 mpg (US)

ShWing! - '82 honda gold wing Interstate
90 day: 33.65 mpg (US)

Moon Unit - '98 Mercury Sable LX Wagon
90 day: 21.24 mpg (US)
Thanks: 1,585
Thanked 3,555 Times in 2,218 Posts
These Rube Goldberg solutions are slaying me! We don't even know if the brakes get hot yet.

Do you drive in heavy city traffic, or up and down mountains? Is the vehicle heavily loaded or is it mostly just you inside? I'm a flatlander, mostly lightly loaded car, small towns and highway driving. I go over 100,000 miles on a set of brake pads. For me, the times the brakes get hottest are when the road salt causes corrosion such that the calipers don't release. Other than that, I don't turn much gasoline into braking heat. If that is you too, then don't worry about it.
__________________


  Reply With Quote
The Following 3 Users Say Thank You to Frank Lee For This Useful Post:
aerohead (01-07-2014), Cd (01-07-2014), UltArc (01-10-2014)
Old 01-07-2014, 02:54 PM   #10 (permalink)
Master EcoModder
 
mcrews's Avatar
 
Join Date: Oct 2009
Location: Texas
Posts: 3,523

The Q Sold - '02 Infiniti Q45 Sport
90 day: 23.08 mpg (US)

blackie - '14 nissan altima sv
Thanks: 2,203
Thanked 663 Times in 478 Posts
here ia project I did on front air ducts.....
http://ecomodder.com/forum/showthrea...kes-18011.html

__________________
MetroMPG: "Get the MPG gauge - it turns driving into a fuel & money saving game."

ECO MODS PERFORMED:
First: ScangaugeII
http://ecomodder.com/forum/showthrea...eii-23306.html

Second: Grille Block
http://ecomodder.com/forum/showthrea...e-10912-2.html

Third: Full underbelly pan
http://ecomodder.com/forum/showthrea...q45-11402.html

Fourth: rear skirts and 30.4mpg on trip!
http://ecomodder.com/forum/showthrea...tml#post247938
  Reply With Quote
The Following User Says Thank You to mcrews For This Useful Post:
aerohead (01-07-2014)
Reply  Post New Thread


Thread Tools




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