What brake set-up does NASCAR run? - CorvetteForum - Chevrolet Corvette Forum Discussion


Autocrossing & Roadracing
Suspension Setup for Track Corvettes, Camber/Caster Adjustments, R-Compound Tires, Race Slicks, Tips on Driving Technique, Events, Results
Sponsored by:
Sponsored by:

What brake set-up does NASCAR run?

Reply
 
 
 
Thread Tools Search this Thread
Old 11-02-2003, 05:49 PM   #1
John Shiels
CF Senior Member
Thread Starter
 
John Shiels's Avatar
 
Member Since: Jul 1999
Location: Buy USA products! Check the label! Employ Americans
Posts: 50,350
Thanked 0 Times in 0 Posts
Default What brake set-up does NASCAR run?

I heard they run 13" rotors but that is all I know. Calipers and rotors are?

Why does the rear of the body seem to be cut high on the quarter panels?

thanks!
John Shiels is offline   Reply With Quote
Old 11-02-2003, 09:02 PM   #2
LG Motorsports
Premium Supporting Vendor
St. Jude Vendor Donor '03-'04-'05-'06-'07-'08-'09-'10-'11
 
LG Motorsports's Avatar
 
Member Since: Oct 2001
Location: Dallas Tx
Posts: 7,512

Thanked 111 Times in 62 Posts
Default Re: What brake set-up does NASCAR run? (John Shiels)

The rule in Nascar for the rotor size is 12.87 Just like the C5. They use all brands of calipers, Wilwood, Brembo, AP and Alcon. Wilwood and Brembo cover about 75% of the field. The remaining 25% use the other brands.
They can also use as thick as 1.4". on the short tracks to help with the heat.

The quarter panels are cut high to let the air out from under the car. The wind tunel showed that it lets the air escape easier. They cannot close off the bottom of the car for air flow either. the frame and under side must have the exposed frame as the lowest part of the car without any smooth underside.

LG
LG Motorsports is offline   Reply With Quote
Old 11-02-2003, 10:07 PM   #3
trumper Z06
CF Senior Member
 
Member Since: Sep 2000
Location: Kennesaw Georgia
Posts: 2,053
Thanks: 0
Thanked 0 Times in 0 Posts
Default Re: What brake set-up does NASCAR run? (LG Motorsports)

Lou, are the NA$CAR Wilwood's the " J " pad???

Wilwood seems to indicate NA$CAR uses them in the advertising.
trumper Z06 is offline   Reply With Quote
Old 11-02-2003, 10:22 PM   #4
LG Motorsports
Premium Supporting Vendor
St. Jude Vendor Donor '03-'04-'05-'06-'07-'08-'09-'10-'11
 
LG Motorsports's Avatar
 
Member Since: Oct 2001
Location: Dallas Tx
Posts: 7,512

Thanked 111 Times in 62 Posts
Default Re: What brake set-up does NASCAR run? (trumper Z06)


It depends on the track. I think their most agressive pad is the "A" pad compound.

LG
LG Motorsports is offline   Reply With Quote
Old 11-03-2003, 06:51 AM   #5
John Shiels
CF Senior Member
Thread Starter
 
John Shiels's Avatar
 
Member Since: Jul 1999
Location: Buy USA products! Check the label! Employ Americans
Posts: 50,350
Thanked 0 Times in 0 Posts
Default Re: What brake set-up does NASCAR run? (LG Motorsports)

Thanks for the info Lou. What caliper in Wilwood do they pick? I guess in a oval race they are just tapping them unlike a road course no?
John Shiels is offline   Reply With Quote
Old 11-03-2003, 09:04 AM   #6
z060ntrack
CF Senior Member
 
z060ntrack's Avatar
 
Member Since: May 2001
Location: Clemmons NC
Posts: 1,935
Thanks: 0
Thanked 0 Times in 0 Posts
Default Re: What brake set-up does NASCAR run? (John Shiels)

John the NASCAR teams also use a recirculation system on the heavy braking tracks ie. Watkins Glen, Martinsville, Bristol etc., that means you have to have the inner and outer pistons separated so the fluid can flow through the caliper. :chevy
z060ntrack is offline   Reply With Quote
Old 11-03-2003, 02:37 PM   #7
John Shiels
CF Senior Member
Thread Starter
 
John Shiels's Avatar
 
Member Since: Jul 1999
Location: Buy USA products! Check the label! Employ Americans
Posts: 50,350
Thanked 0 Times in 0 Posts
Default Re: What brake set-up does NASCAR run? (z060ntrack)

Matt I think Wilwood had that on there site and it wasn't all that bad of a price.
John Shiels is offline   Reply With Quote
Old 11-05-2003, 12:04 AM   #8
Gary2KC5
CF Senior Member
 
Gary2KC5's Avatar
 
Member Since: Apr 2001
Posts: 5,157
Thanked 6 Times in 3 Posts
Default Re: What brake set-up does NASCAR run? (John Shiels)

John,
next time the NASCAR boys are @ Martinsville make sure you watch the race. Martinsville is the most abusive track on brakes for any race car on the planet. The TV coverage has brake cams that show how the rotors glow almost the entire lap, for 400 laps. Infact it is not uncommon to have tire beads melt from the heat.

People don't realize how much configuration changes on NASCAR cars from track to track. That's why they have 18-22 cars for each driver. Short tracks, road courses, super speedways, medium tracks, and special cars for Daytona, Indy, and Bristol.

NASCAR cars probably have 3-5 different caliper(s) set ups depending on what type of track they are on.
Gary2KC5 is offline   Reply With Quote
Old 11-05-2003, 07:15 AM   #9
John Shiels
CF Senior Member
Thread Starter
 
John Shiels's Avatar
 
Member Since: Jul 1999
Location: Buy USA products! Check the label! Employ Americans
Posts: 50,350
Thanked 0 Times in 0 Posts
Default Re: What brake set-up does NASCAR run? (Gary2KC5)

Gary why so bad on a small oval?
John Shiels is offline   Reply With Quote
Old 11-05-2003, 07:54 AM   #10
Jim 47
CF Senior Member
 
Jim 47's Avatar
 
Member Since: Jul 2000
Location: Wilmington DE
Posts: 2,483
Thanks: 0
Thanked 0 Times in 0 Posts
Default Re: What brake set-up does NASCAR run? (John Shiels)

John, the Martinsville track looks like a paper clip. The straights are long in compairson to the turns, which are very tight. As a result they hit some pretty high speeds on the straights, but have to slow down a lot to stay on the track in the turns. They're turning laps at less than 30 sec, so they are hauling down from about 150 to about 50 about 4 times a minute. (I'm not sure of those speeds). But never the less, there is a lot of energy being dissapated through the brakes in a very short time :mad :mad :mad , so their brakes tak one hell of a beating.

Jim
Jim 47 is offline   Reply With Quote
Go Back   CorvetteForum - Chevrolet Corvette Forum Discussion >
Reload this Page
  • What brake set-up does NASCAR run?
  •  
     
    Reply

    Related Topics
    Thread Thread Starter Forum Replies Last Post
    Anyone running a deal on GS size rotors? JakeC6Racing C6 Corvette General Discussion 3 04-22-2015 12:27 PM
    76 Tachometer hgoodwiniii C3 Tech/Performance 2 11-10-2013 11:04 AM
    14" rear rotors BAER will they fit without any problems vettes4fun C5 General 10 03-10-2006 07:40 PM
    Rotors that do not rust! sgp99 C5 General 15 09-08-2004 05:57 PM
    Brake Upgade Question Regarding Rotor Choice mothersworry C4 Tech/Performance 3 05-03-2004 11:35 AM


    Tags
    brake, brakes, brand, cars, nascar, performance, set, setup, system

    Thread Tools Search this Thread
    Search this Thread:

    Click for Advanced Search

    Posting Rules
    You may not post new threads
    You may not post replies
    You may not post attachments
    You may not edit your posts

    BB code is On
    Smilies are On
    [IMG] code is On
    HTML code is Off
    Trackbacks are Off
    Pingbacks are Off
    Refbacks are Off

    Forum Jump


    All times are GMT -4. The time now is 12:01 PM.


     
    • Ask a Question
      Get answers from community experts
    What's your question?
    Send