Race Car Tech Discuss anything related to road racing and auto X.

Turbo or Fan racing Wheel caps? Pic's

Thread Tools
 
Search this Thread
 
Old Mar 9, 2007 | 03:58 PM
  #1  
Mid_KnightFD's Avatar
Thread Starter
Full Member
Tenured Member 10 Years
 
Joined: Sep 2001
Posts: 86
Likes: 0
From: mobile,alabama
Turbo or Fan racing Wheel caps? Pic's

In the 80's and into the early 90's you would see these on most of the race cars form GT to prototype. Why are they not used anymore? There had to be a benefit from them. Were they outlawed. Does anyone know where you could get some made? They look cool.
Attached Thumbnails Turbo or Fan racing Wheel caps? Pic's-audi-turbo-wheel-2-small.jpg   Turbo or Fan racing Wheel caps? Pic's-audi-imsa-gto1small.jpg   Turbo or Fan racing Wheel caps? Pic's-gturoadamericasmall.jpg  
Reply
Old Mar 9, 2007 | 04:32 PM
  #2  
DamonB's Avatar
Lives on the Forum
Tenured Member 15 Years
 
Joined: Feb 2001
Posts: 9,617
Likes: 8
From: Dallas
Those TransAm Audis are some of my favorite racecars.

Solid disc wheels are illegal in the sanctioning bodys I know of.

One problem with those was that rather than pumping air from the outside and into the rotors you could reverse the fan and use them to pump air out from under the car. Pumping air out from under the car creates downforce...

I also reckon that if you're pumping air into the brake rotors from the front of the wheels that air still has to come back out somewhere, most likely reversing direction and exiting around the tire. It's probably not as efficient aero wise as a traditional brake cooling duct. It could also add to the higher pressure area inside the wheel wells; exaceberating the lift problem there.

My best guesses anyway.
Reply
Old Mar 9, 2007 | 05:16 PM
  #3  
Mid_KnightFD's Avatar
Thread Starter
Full Member
Tenured Member 10 Years
 
Joined: Sep 2001
Posts: 86
Likes: 0
From: mobile,alabama
I didn't think that it was a solid disk wheel, more of an attachment to the existing wheel. If you look at some of the pic's of the 787b and allot of the 962's they all used them. Almost look's like the new Ferrari F1 car is useing them for the rear, or something similar.
Attached Images
File Type: bmp
prsche 962 small.bmp (96.7 KB, 396 views)
Reply
Old Mar 9, 2007 | 05:29 PM
  #4  
sereneseven's Avatar
Senior Member
Tenured Member 10 Years
 
Joined: Feb 2006
Posts: 454
Likes: 1
From: mooresville
as damon already pointed out...yes they have been banned by many sanc. bodys. and yes they would pump air out of the wheel. it was a attempt to clean up the aero around the wheels and also increase the GA of the car. today many race cars simply run block off pannels on the inside of the wheel.

If anyone noticed the F1 races last year there were a few cars running partial wheel blanks for some of the races(gotta love open rule books
Reply
Old Mar 9, 2007 | 05:39 PM
  #5  
crispeed's Avatar
'Tuna'
Tenured Member 15 Years
 
Joined: Feb 2001
Posts: 4,637
Likes: 3
From: Miami,Fl,USA
Originally Posted by Mid_KnightFD
In the 80's and into the early 90's you would see these on most of the race cars form GT to prototype. Why are they not used anymore? There had to be a benefit from them. Were they outlawed. Does anyone know where you could get some made? They look cool.

I have a set of those wheels to fit a 2nd gen made by Volks wheels.
They are white in color and have racing beat written on them.
Reply
Old Mar 9, 2007 | 05:42 PM
  #6  
DamonB's Avatar
Lives on the Forum
Tenured Member 15 Years
 
Joined: Feb 2001
Posts: 9,617
Likes: 8
From: Dallas
Originally Posted by Mid_KnightFD
I didn't think that it was a solid disk wheel
Yes there are fan vanes in there but the face of the wheel is still a solid disk.
Reply
Old Mar 10, 2007 | 01:12 AM
  #7  
Synaptic 3's Avatar
1.3x2=4r
Tenured Member 05 Years
 
Joined: Dec 2006
Posts: 32
Likes: 0
From: NOVA
This style came in two different ways. Some companies had wheels with built in fan vanes, and other wheel companies had removable outer fans. CCW was going to make carbon wheel fans for their wheels before they were banned. Guess it wouldn't be pretty as a spectator to get hit by one of those from a car at speed.

-Aaron
Reply
Old Mar 10, 2007 | 01:15 AM
  #8  
Synaptic 3's Avatar
1.3x2=4r
Tenured Member 05 Years
 
Joined: Dec 2006
Posts: 32
Likes: 0
From: NOVA
Originally Posted by sereneseven
today many race cars simply run block off pannels on the inside of the wheel.
Got any pictures or links to show this? Curious about this one...

-Aaron
Reply
Old Mar 10, 2007 | 01:40 PM
  #9  
sereneseven's Avatar
Senior Member
Tenured Member 10 Years
 
Joined: Feb 2006
Posts: 454
Likes: 1
From: mooresville
Here you go.

Originally Posted by Synaptic 3
Got any pictures or links to show this? Curious about this one...

-Aaron
Attached Thumbnails Turbo or Fan racing Wheel caps? Pic's-champcar-2007-swt-eg-0049.jpg  
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
rotor_veux
Build Threads
46
Jun 12, 2018 10:39 AM




All times are GMT -5. The time now is 09:59 AM.