Full floater with Wilwood brakes

[fordsbyjay]

First off, this post applies to both brakes and rearend so hopefully it will be alright in the brake section.

I am just about at the point where I need to order my rearend and brakes. I was going to order a Moser full floater setup but after talking with Moser tech yesterday the OD of their hub is 3" and I don't have a large enough center in my wheels. After some searching I found a unit from Schreiner Enterprises (www.9inchfloater.com). Their snout is 2.6" which and only sticks out 1.125" so they will clear my cobra R wheels. I spoke with Jason @ GMR awhile back and I believe they use the Schreiner ends on their housings but I don't like the look of a fabricated housing (personal taste).
So, I spoke with Ron Schreiner yesterday and they can make a rearend to my specs no problem. Ron said they could make the rotor adapter for whatever brakes I want to use.

The next issue is the brakes. I have searched and read a multitude of brake rotor/caliper threads here on the forum and there is some great information but I am more confused now then before. :scared: First off none of them apply directly to FF housings vs a conventional setup. Besides the physical difference is there any different needs based on the FF housing? One of the threads I read here (https://www.pro-touring.com/forum/showthread.php?t=70743) mentions all kinds of different calipers. We had talked about my front brakes in this thread (https://www.pro-touring.com/forum/showthread.php?t=65540) but the requirements for the rear seem quite small compared to what I see in the Wilwood big brake kits.

I was thinking along the lines of the wilwood 120-7568 calipers seen here (http://www.wilwood.com/Calipers/CaliperProd.aspx?itemno=120-7568-RS) and the wilwood 160-2540 12.72x1.25" rotors seen here (http://www.wilwood.com/Rotors/RotorProd.aspx?itemno=160-2540). Obviously this is bigger than I need but I was thinking it would leave room to upgrade the front end when I get there. Comments and suggestions would greatly be appreciated. I should also mention that I had budgeted $1000-$1100 for rear brakes and these fit that requirement well.

[Payton King]

Most floater hubs are on an 8 bolt 7 inch pattern for the rotors. Circle track stuff is way cheaper than the stuff we are buying, but about the biggest size you are going to find in that bolt pattern is a 12 inch rotor. Either 1.25 or .81 thick. The good thing is they are about $50 to $80 a piece and will bolt right up. Coleman will make you a custom rotor any size you want that will bolt up but it will be about $180 a piece. Or you can have the company listed make you a rotor adaptor and run any rotor you like. Only other option is to get a hat that will clear the hub.

Here is the catch. If you are running the Wilwood narrow super lights. The front 6 piston caliper takes a 1.25 rotor and the rear 4 piston caliper takes a 1.1 rotor. The 1.1 rotor is not available in the 8x7 pattern, so you will need a rotor adapter or run a hat. If you want to run the same thickness front and rear you will need to find calipers that will work for that thickness and still be sized correctly from a piston area standpoint.

Any way you go you will need what caliper and rotors you will run in the rear and who makes your rear can then make a caliper mount to work. Also note that there will be no provisions for an e-brake...if you want one it will need to be a stand alone deal.

Jake (Jakes Rod Shop) uses a hat with the same offset front and rear and uses the same rotor size on his race car. That way the front and rear rotors with the hats are interchangable. He rotates them as they become worn since the fronts take most of the abuse.

[Payton King]

The calipers that you are looking at are a lug mount. I was speaking of the radial mount calipers. I thought about going in that direction as well, but I want my front and rear calipers to match and they need to be a radial mount...and I already have them on my car.

Also watch for clearance issues with the caliper to wheel. Those are pretty wide.

[fordsbyjay]

Most floater hubs are on an 8 bolt 7 inch pattern for the rotors. Circle track stuff is way cheaper than the stuff we are buying, but about the biggest size you are going to find in that bolt pattern is a 12 inch rotor. Either 1.25 or .81 thick. The good thing is they are about $50 to $80 a piece and will bolt right up

From what I have seen in the wilwood cat. the largest 8x7" is the 12.72 in 1.25 right here. (http://wilwood.com/Rotors/RotorProd.aspx?itemno=160-2540)



Also note that there will be no provisions for an e-brake...if you want one it will need to be a stand alone deal.

This has been a concern of mine. The smaller calipers w/ park brake only fit 0.81 and 1" rotors seen here. (http://wilwood.com/Calipers/CaliperList.aspx?subname=Combination P-Brake)


Jake (Jakes Rod Shop) uses a hat with the same offset front and rear and uses the same rotor size on his race car. That way the front and rear rotors with the hats are interchangable. He rotates them as they become worn since the fronts take most of the abuse.

This is definitely thinking ahead.

[Cris@JCG]

I have been working with Speedway to get a functional Wilwood parking brake for a floating rear-end..

Got parts machined this week.. close to have the parking brake system work .. We will be using a radial mount Super Lite Wilwood caliper & 12.88 dia x .810 thk rotor.. Keeping rotational weight down..

https://static1.pt-content.com/images/pt/2010/08/IMG_0336-1.jpg

https://static1.pt-content.com/images/pt/2010/08/IMG_0346-1.jpg

[fordsbyjay]

The calipers that you are looking at are a lug mount. I was speaking of the radial mount calipers.

I know what the difference is but how much difference does it make? It seems like the radial mount is on the larger kits.

[Payton King]

big of deal. The C6Z06 brakes are a lug mount. Only thing I have run into is when changing pad manufacturers. I was running Wilwood pads and when I switched to Carbotech's, I needed to shim my calipers up to get the pad contact to the top of the rotor.

You will be welding on a bracket with either style you go with....