6 piston calipers and 15" wheels - Vintage Mustang Forums
 3Likes
Reply
 
Thread Tools
post #1 of 17 (permalink) Old 04-11-2018, 01:58 PM Thread Starter
Senior Member
 
Mutang's Avatar
 
Join Date: Oct 2007
Location: Rock Hill, SC
Posts: 408
6 piston calipers and 15" wheels

Hello, want to post this before I go re inventing the wheel again.. I currently have a modified brake set up from Mustang Steve, drum spindles with 2005+ calipers. I had a custom spacer made that allows me to run crown vic rotors, barely clearing 16 inch rims. I would like to go back to 15 inch. My question, has any one modified the Mustang Steve kit to use 15 inch rims. I want to keep the 12.5 inch rotors. has any one gone with one of the low profile 6 piston calipers and fit them inside a 15 inch wheel? Looks like it could work..Wilwood 120-10133 DP6, possibly??

Thanks
Mutang is online now  
Sponsored Links
Advertisement
 
post #2 of 17 (permalink) Old 04-11-2018, 02:26 PM
Senior Member
 
silverblueBP's Avatar
 
Join Date: Apr 2002
Location: Ames, Iowa
Posts: 7,701
Garage
I haven't seen or heard of anything larger than the Lincoln brakes fitting 15" wheels. If you do find one, I'd bet anyone that tracks their car would be interested!

-Mark-

1966 Mustang 2+2

silverblueBP is offline  
post #3 of 17 (permalink) Old 05-07-2018, 04:44 PM
fej
Senior Member
 
fej's Avatar
 
Join Date: Jun 2012
Location: Bay Area, CA
Posts: 1,011
You likely have a small chance with one of Wilwood's 4 piston calipers, but I don't know. You are likely going to have to reinvent the wheel on that combo if a 6 piston is a must. The Lincoln rotor + a modern 4 piston forged Caliper will likely give you a net improvement in your braking and in to your 15" rims. 1.25" rotors will help over the 0.8x" factory stuff I think.

Talk to Cobra Automotive, they, or their customers have likely done everything that can be done while staying in "vintage" classes (IE 15" rims)

Fej

1966 GT Coupe
Not much left original
Trying to do things once
MMI CO / Panhard ~ JRI / Penske ~ Astro A5 ~ FiTech ~ MGW ~ AAW
fej is offline  
 
post #4 of 17 (permalink) Old 05-07-2018, 06:30 PM
Senior Member
 
buckeyedemon's Avatar
 
Join Date: Dec 2007
Location: Cincinnati, OH
Posts: 2,976
i have wildwood 6 piston and they clear a 15" rim. but it all is heavily dependent on the rim design/offset.
green1965 likes this.

buckeyedemon is offline  
post #5 of 17 (permalink) Old 05-07-2018, 06:30 PM
Senior Member
 
Boom's Avatar
 
Join Date: Mar 2012
Location: Tomah, WI
Posts: 1,881
The website shows that caliper fitting as small as a 10" rotor. So it may be possible, but it'd probably have to be all custom made or pulling parts from various vehicles. Which works, but then it can be a pain when something breaks trying to remember everything..

Wilwood High Performance Disc Brakes - Caliper Product Number: 120-10133 - Test

-Brett
1968 fastback 351w
1986 Iroc-Z
Boom is offline  
post #6 of 17 (permalink) Old 05-07-2018, 06:43 PM
Senior Member
 
happystang's Avatar
 
Join Date: Jan 2013
Location: San Jose, CA
Posts: 4,134
Garage
Rotor thickness is going to play a bigger factor in heat dissipation. Look into the Street or Track disc brake kits. They are absolutely MASSIVE and conveniently fit under 15" wheels.
henry_v and rwcstang like this.

1969 Convertible field find (450hp spaghetti noodle)
1968 Fastback (428 and a 4 speed)
www.SaveClassicCars.net

-Armon

happystang is online now  
post #7 of 17 (permalink) Old 05-07-2018, 07:52 PM
fej
Senior Member
 
fej's Avatar
 
Join Date: Jun 2012
Location: Bay Area, CA
Posts: 1,011
I beleive SoT's kits are basically Shaun's assembled version of a Trans Am kit using un-labeled Wilwood calipers. Could be wrong, maybe he will chime in or maybe this is too much detail ....

Fej

1966 GT Coupe
Not much left original
Trying to do things once
MMI CO / Panhard ~ JRI / Penske ~ Astro A5 ~ FiTech ~ MGW ~ AAW
fej is offline  
post #8 of 17 (permalink) Old 05-07-2018, 08:06 PM
Senior Member
 
Join Date: May 2005
Location: Charlotte NC
Posts: 1,618
Mutang,
Take a ride up to mooresville and look at NASCAR takeoffs. They run giant brakes in a 15" wheel.
Jsams is offline  
post #9 of 17 (permalink) Old 05-07-2018, 10:44 PM Thread Starter
Senior Member
 
Mutang's Avatar
 
Join Date: Oct 2007
Location: Rock Hill, SC
Posts: 408
Yea, I have thought about that. There are a few issues with the nascar stuff. Even used theyare plenty expensive. They use larger wheel studs, normally a 5 on 5 bolt pattern. The calipers are really nice though. Pads are huge plentiful and cheap.
Mutang is online now  
post #10 of 17 (permalink) Old 05-30-2018, 06:46 AM Thread Starter
Senior Member
 
Mutang's Avatar
 
Join Date: Oct 2007
Location: Rock Hill, SC
Posts: 408
Got into some more serious measuring and mock up this weekend. I borrowed a wheel and tire from a dirt track racer friend of mine, Hoosier 25.5X8X15, was thinking it would be a slam dunk for the front. Removed the caliper and bolted it on and wow was it big! Barely cleared, may work with a different rim. I have it in a 15X8 with 4 inch back spacing, I think 4.5 back spacing would work. The thing about this Hoosier tire, not only is it tall, but really wide! It is only an 8 inch tread, but the tire itself is over 11 inches wide at the side wall.

My question is: has anyone run Hoosier asphalt racing tires on a road course? I have access to a supply fairly cheap and was curious if they were worth the effort. I was thinking about an 26.5X8X15 mounted on a 15X8 rim with 4.5 bs on the front and an 27X11X15 mounted on a 15X10 rim with 5 bs on the back. I admit the tire looks really good, very period correct which is what I am looking for. If these aren't worth the effort I know there are a lot more choices.
Mutang is online now  
post #11 of 17 (permalink) Old 05-30-2018, 07:50 PM
Senior Member
 
Join Date: May 2005
Location: Charlotte NC
Posts: 1,618
I would try the tires. How bad could they be?
Worst case, you could soak them to soften them up.
Jsams is offline  
post #12 of 17 (permalink) Old 05-30-2018, 08:26 PM
rpm
Senior Member
 
rpm's Avatar
 
Join Date: Mar 2012
Location: Bakersfield, Ca
Posts: 1,360
If F1 fits a 6 piston caliper on an 11" rotor in a 13" wheel, I think an old hot rodder could figure out a bracket to fit most any caliper to fit inside a 15" wheel.

Bob


There are 2 types of people, those who own pickups and those who borrow them.

69 M code Mach 1, 393w AFR 185, AOD trans, 3.50 traction lok N case, 13" 01Cobra 4 wheel disc, QA1 4 wheel coil covers, Chromo tube susp arms, Triangulated rear arms, Convertible inner rockers & seat riser, 8 point roll bar.


Build Pics http://s782.photobucket.com/user/rob...?sort=3&page=2

Build Thread
http://1969stang.com/forum/index.php...bitch-is-back/
rpm is offline  
post #13 of 17 (permalink) Old 06-05-2018, 01:28 PM Thread Starter
Senior Member
 
Mutang's Avatar
 
Join Date: Oct 2007
Location: Rock Hill, SC
Posts: 408
Update, Hoosier 27X11X15 mounted on a 15X10 rim with 5 bs on the back fit! And do they look cool! Very period correct. I am going to try them on the front later (front is disassembled for new brake caliper fabrication, but worse case is 26.5X8 on the front and 27X11 on the back. My only concern is they are bias ply tires. Never been on track with bias ply and the last time I drove on a bias ply tire I was 17. They still race on them so they must be OK. I'm thinking I may have to play with camber and tire pressure to get it right.
Mutang is online now  
post #14 of 17 (permalink) Old 06-05-2018, 02:04 PM
Senior Member
 
silverblueBP's Avatar
 
Join Date: Apr 2002
Location: Ames, Iowa
Posts: 7,701
Garage
Quote:
Originally Posted by Mutang View Post
Update, Hoosier 27X11X15 mounted on a 15X10 rim with 5 bs on the back fit! And do they look cool! Very period correct. I am going to try them on the front later (front is disassembled for new brake caliper fabrication, but worse case is 26.5X8 on the front and 27X11 on the back. My only concern is they are bias ply tires. Never been on track with bias ply and the last time I drove on a bias ply tire I was 17. They still race on them so they must be OK. I'm thinking I may have to play with camber and tire pressure to get it right.
The bias tires are very different than the radials. The radials stick...stick...stick and then let go. The bias tires are happiest when they're sliding.

-Mark-

1966 Mustang 2+2

silverblueBP is offline  
post #15 of 17 (permalink) Old 08-10-2019, 11:08 AM Thread Starter
Senior Member
 
Mutang's Avatar
 
Join Date: Oct 2007
Location: Rock Hill, SC
Posts: 408
update
Attached Images
File Type: jpg caliper.jpg (81.9 KB, 8 views)
Mutang is online now  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Vintage Mustang Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in













Posting Rules  
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are Off

 
For the best viewing experience please update your browser to Google Chrome