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10-20-2013, 09:58 AM
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CC Member
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Join Date: Apr 2008
Location: Scottsdale,
Az
Cobra Make, Engine: Black CSX 4910, Roush 511 8 stack
Posts: 1,205
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Not Ranked
Biggest/best brake setup for 15 inch wheels?
After a couple of days at the track come to a couple of conclusions-
1. Need better tires for the track but not willing to give up stock/ vintage look of 15 inch wheels
2. Need better brakes than stock Baer discs
2 questions-
Are there any drags radials for 15 inch wheels if I were to want to track more ?
Largest/Best brake system can I fit in the standard 15 inch wheel?
Thanks
Csx4910
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10-20-2013, 10:25 AM
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Half-Ass Member
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Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 21,897
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Not Ranked
These were the largest that would fit on my 12.2" rotors in 2006 -- 6 pin 15" wheels. The Wilwoods are the same size -- Wilwood 150-8854K (L//R, 1.75” bore) or Wilwood 120-3071-R, 120-3071-L (1.875” and 1.75” staggered bore)
Last edited by patrickt; 10-20-2013 at 10:40 AM..
Reason: Edit - Added Parts Reference
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10-20-2013, 11:02 AM
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CC Member
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Join Date: Jun 2001
Location: Mesa,
AZ
Cobra Make, Engine: ERA #2119 289FIA
Posts: 5,380
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Not Ranked
Mickey Thompson makes some excellent Street Radial tires for 15". I've run 325x50x15s on the rear for years and they certainly do get sticky when they are heated up and have given me pretty good longevity. I've read several posts by people who have run then on all four corners and have been happy with them. Be advised, they are just a LITTLE dicey on wet pavement and worthless in snow. (personal experience)
__________________
Karlos
"In the Land of the Pigs, The Butcher is King"
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10-20-2013, 11:16 AM
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CC Member
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Join Date: Apr 2008
Location: Scottsdale,
Az
Cobra Make, Engine: Black CSX 4910, Roush 511 8 stack
Posts: 1,205
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Not Ranked
Thanks I appreciate the advice. Was the Willwood setup a 6 prison setup?
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10-20-2013, 11:29 AM
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CC Member
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Join Date: Jan 2004
Location: Shawbury,
Posts: 325
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Not Ranked
Best brakes for 15"
Good question. Kirkham used Wilwood 6 piston calipers with 12.2" discs for the no-expenses-spared billet car built for Larry Ellison, see page 17 here: http://www.kirkhammotorsports.com/im...aoe/aoe_12.pdf
I'm also looking for a decent set of brakes that fit the 15" Halibrands at the moment and would be interested in what others did.
Simon |
10-20-2013, 11:40 AM
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Half-Ass Member
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Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 21,897
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Not Ranked
Quote:
Originally Posted by CobraV8
Good question. Kirkham used Wilwood 6 piston calipers with 12.2" discs for the no-expenses-spared billet car built for Larry Ellison, see page 17 here: http://www.kirkhammotorsports.com/im...aoe/aoe_12.pdf
I'm also looking for a decent set of brakes that fit the 15" Halibrands at the moment and would be interested in what others did.
Simon |
My Sierras are 4 piston. Larry and I are not on the same economic plane....  |
10-20-2013, 11:42 AM
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CC Member
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Join Date: Jul 2011
Location: Weatherford,
TX
Cobra Make, Engine: 427 S/C
Posts: 80
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Not Ranked
CR Girlings.....
GRUFF
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10-20-2013, 05:44 PM
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CC Member
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Join Date: Apr 2005
Location: Tucson,
AZ
Cobra Make, Engine:
Posts: 5,390
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Not Ranked
I used Wilwood 12.19" rotors on my Hurricane with four piston calipers. I have 15" Trigo wheels. They were the largest rotor I could get to fit with that wheel. I think a six piston caliper would fit though. Where's it's really close on mine is the parking brake caliper.
Larry
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Alba gu bràth
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10-20-2013, 06:00 PM
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CC Member
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Join Date: Aug 2000
Location: Glendale,
AZ
Cobra Make, Engine: SPF 468ci 550HP + 150HP NX Matching Shelby GT500 650HP
Posts: 4,209
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Not Ranked
Ron, Baer makes good stuff. You might be cheaper and wiser to ask Baer what pads you should use.
AZ Bob
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AZCOBRA, AZBOBS Plates & JAFMO
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10-20-2013, 06:24 PM
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Abnormal CC Member
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Join Date: Jan 2005
Location: Pottstown (East Coventry),
PA
Cobra Make, Engine: Don't think I'll be getting a Cobra for a long time... Do have '94 RX-7 R2.
Posts: 2,316
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Not Ranked
Quote:
Originally Posted by CobraV8
Good question. Kirkham used Wilwood 6 piston calipers with 12.2" discs for the no-expenses-spared billet car built for Larry Ellison, see page 17 here: http://www.kirkhammotorsports.com/im...aoe/aoe_12.pdf
I'm also looking for a decent set of brakes that fit the 15" Halibrands at the moment and would be interested in what others did.
Simon |
When I was at a Kirkham Open House, a Shelby dealer was there discussing using Wilwood brakes on CSX4000 cars with one of the Kirkham brothers. It may have been Tom. In any case which ever brother it was, he thought that the standard Kirkham brakes were better than the 6 piston setup used on the billet car. |
10-20-2013, 06:26 PM
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CC Member
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Join Date: Jun 2001
Location: Mesa,
AZ
Cobra Make, Engine: ERA #2119 289FIA
Posts: 5,380
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Not Ranked
Ron, if you talk to Baer, you might also ask them what size mastery cylinder sizes they recommend. I agree with Bob B that they make a good product and you may be able to achieve better results by changing to a different composition pad and/or master cylinder diameter to produce greater braking pressure.
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Karlos
"In the Land of the Pigs, The Butcher is King"
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10-20-2013, 06:27 PM
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Senior Club Cobra Member
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Join Date: Sep 2000
Location: Holderness, NH, US of A,
NH
Cobra Make, Engine: CSX 4772 old iron FE
Posts: 5,499
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Not Ranked
I put a big 6 piston Wilwood calipers and large by huge rotors inside a 16" rim. I tried it inside a 15" and it almost fit, with smaller rotors it would have. The car has since proven itself on the track since, all due to plenty of brakes according to the owner/driver.
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10-21-2013, 12:17 AM
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CC Member
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Join Date: Sep 2008
Cobra Make, Engine: csx4163 full comp alu. body
Posts: 368
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Not Ranked
Brembo floating calipers with choice of different pads, street , race , in-between . Finishline Motorsports is gone but Gen-Two engineering has taken over and could help. Their in Las Vegas. Built the Spec. racers also.
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10-29-2013, 09:36 AM
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CC Member
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Join Date: Jan 2000
Location: Maricopa,
AZ
Cobra Make, Engine: Car builder/restorer FFR
Posts: 439
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Not Ranked
I have some 12.2 4 piston kits that will fit the 15" pin drive wheels. I have also done a 11.75" 6 piston kits that fit under 15" pin drives.
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12-08-2013, 03:14 AM
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CC Member
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Join Date: Oct 2004
Location: Salzburg,
A
Cobra Make, Engine:
Posts: 75
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Not Ranked
Custom made 6 Piston Wilwood
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12-08-2013, 03:22 AM
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CC Member
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Join Date: May 2008
Location: Brisbane,
QLD
Cobra Make, Engine:
Posts: 2,773
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Not Ranked
Of course, everyone knows if you can't make the brakes any bigger because of rim diameter constraints, you make the tyre smaller in rolling diameter.
No point in spending 10k on brakes, and then still be running 60 series tyres etc.
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Gary
Gold Certified Holden Technician
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12-08-2013, 06:09 AM
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CC Member
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Join Date: Apr 2008
Location: Melbourne,
Vic
Cobra Make, Engine: Some polish thing... With some old engine
Posts: 2,286
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Not Ranked
Quote:
Originally Posted by csx4910
After a couple of days at the track come to a couple of conclusions-
2. Need better brakes than stock Baer discs
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A couple questions for you regarding brakes.
What exactly was the problem - brake "Bite" or fade? |
12-08-2013, 11:56 AM
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CC Member
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Join Date: Aug 2002
Location: Richmond,
VA
Cobra Make, Engine: Superformance Mk III / Windsor platform
Posts: 450
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Not Ranked
Quote:
Originally Posted by csx4910
After a couple of days at the track come to a couple of conclusions-
1. Need better tires for the track but not willing to give up stock/ vintage look of 15 inch wheels
2. Need better brakes than stock Baer discs
2 questions-
Are there any drags radials for 15 inch wheels if I were to want to track more ?
Largest/Best brake system can I fit in the standard 15 inch wheel?
Thanks
Csx4910
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Figure on spending about $4000.
Avon CR6ZZ
Roger Kraus Racing - Pricing
Olthoff Big Brake Kit
Brake Upgrade - Olthoff Racing |
12-08-2013, 12:03 PM
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CC Member
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Join Date: Jan 2000
Location: Maricopa,
AZ
Cobra Make, Engine: Car builder/restorer FFR
Posts: 439
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Not Ranked
I have kits that can be fitted to your car that will clear 15" wheels. I've even been about to fit 6 piston calipers under 15" pin drive.
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12-08-2013, 05:39 PM
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CC Member
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Join Date: Sep 2012
Location: Portland,
OR
Cobra Make, Engine: ERA - B2Motorsports Dart 331
Posts: 464
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Not Ranked
Quote:
search part no: 120-3071-rs
product: 120-3071-rs
description: Caliper,sliii,1.88/1.75,1.25,l/h,rear mt w/heat shields (obsolete)
wilwood part no: 120-3071-rs
the item you are looking for is currently unavailable on the website. It is a valid wilwood part number. For information, please call (805) 388-1188.
http://www.wilwood.com/search/partno...3071-rs&vpnf=1
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