Big Brakes - 14 Inch Rotors Wilwood Calipers

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1FZj80 said:
looks great!
what size rotor are you using?
you will love everything about the braking when complete.
i like the red calipers :D
Click to expand...

Thanks. Running 14 inch rotors. Didn't think I could fit anything bigger without changing wheels. As is, I am hoping that the wheels will fit. It "should" be no problem. But we'll see soon enough.
 
Any chance they'll offer this as a package? I'm more afraid of the brakes than anything on my truck.

Thanks for the thread!
 
portiadog1 said:
In pursuing this project for my truck, I found a local hot rod shop (Eastern Rod & Custom - who I can't say enough great things about) who has done a lot of custom brake work. Because I am attempting to go with the Aero 6 calipers, the bracket that @1FZj80 designed would not work for my situation. The hot rod shop decided to make a single caliper mounting bracket rather than an adapter.

Wilwood Aero 6 Caliper bracket 1

Wilwood Aero 6 Caliper bracket 1

Wilwood Aero 6 Caliper bracket 2

Wilwood Aero 6 Caliper bracket 2

Wilwood Aero 6 Caliper bracket 3

Wilwood Aero 6 Caliper bracket 3


Once we assembled the hubs, we realized that the brackets wouldn't work because they didn't fit. Shaving the brackets down a little bit on one side has given enough clearance for the steering arm, and seems to have us rounding third base and headed into home. Hoping to have it all assembled by Monday.

View attachment 1342178 View attachment 1342179

I really want to thank @1FZj80 for being so helpful.
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Nice work! Too bad the "hot Rod" shop couldn't make about 100 mounting brackets! Maybe @NLXTACY has a fancy shop in the Valley that can turn these out...:hmm:
 
portiadog1 said:
In pursuing this project for my truck, I found a local hot rod shop (Eastern Rod & Custom - who I can't say enough great things about) who has done a lot of custom brake work. Because I am attempting to go with the Aero 6 calipers, the bracket that @1FZj80 designed would not work for my situation. The hot rod shop decided to make a single caliper mounting bracket rather than an adapter.

Wilwood Aero 6 Caliper bracket 1

Wilwood Aero 6 Caliper bracket 1

Wilwood Aero 6 Caliper bracket 2

Wilwood Aero 6 Caliper bracket 2

Wilwood Aero 6 Caliper bracket 3

Wilwood Aero 6 Caliper bracket 3


Once we assembled the hubs, we realized that the brackets wouldn't work because they didn't fit. Shaving the brackets down a little bit on one side has given enough clearance for the steering arm, and seems to have us rounding third base and headed into home. Hoping to have it all assembled by Monday.

View attachment 1342178 View attachment 1342179

I really want to thank @1FZj80 for being so helpful.
Click to expand...
That is bery cool. I'm excited to hear how your braking is. Nice work
 
Also @portiadog1 , does the shop that did the brackets, or maybe you, have any thoughts of selling more? I'd be interested. Thanks
 
@NLXTACY I'm happy to ask them for the file/drawing/dimensions of this bracket.

@hamishpotter and @dogfishlake I am guessing they would be willing to make more of the brackets, but you'd still need a machine shop to machine the old rotors into the hats for the new rotors. Because of this, I'm not sure how this could be sold as a kit, without machining the hats from scratch.

Eastern Rod & Customs is more of a fabrication shop than machine shop, so they're probably not best suited to volume work. Also note that this bracket would only fit the Aero6 calipers, which are different than the calipers used by the OP.
 
Which aero 6 did you go with? I imagine the 5.40in^2 piston area. I know the stock size is 4.975in^2 so you will have a slightly longer brake pedal.

Front piston bore size. 1.78in/45 or 46mm X2
Rear piston bore size 1.89/48m x1

Front piston area - (((1.78/2)^2)*3.14)*2 = 4.975in/sq
rear piston area - (((1.89/2)^2)*3.14) = 2.80in/sq
 
portiadog1 said:
@NLXTACY I'm happy to ask them for the file/drawing/dimensions of this bracket.

@hamishpotter and @dogfishlake I am guessing they would be willing to make more of the brackets, but you'd still need a machine shop to machine the old rotors into the hats for the new rotors. Because of this, I'm not sure how this could be sold as a kit, without machining the hats from scratch.

Eastern Rod & Customs is more of a fabrication shop than machine shop, so they're probably not best suited to volume work. Also note that this bracket would only fit the Aero6 calipers, which are different than the calipers used by the OP.
Click to expand...

I have very good resources for machining and such, I powder coat all my friends stuff for free CAD, laser cutting, machining, and welding. (I also powder coat for beer for the shop fridge, kinda known for that in my town :D) . Having the file would make it tons easier, but I realize they have time into it so I am willing to pay a bit if need be. Thanks in advance!
 
I'm curious to see how calipers without dust seals hold up long-term on a vehicle that sees more dirt/mud/dust than the cars they are typically found on.

A friend of mine had a Wilwood BBK on his Audi and it required pretty much annual maintenance just as a result of being driven daily.
 
scottryana said:
Which aero 6 did you go with? I imagine the 5.40in^2 piston area. I know the stock size is 4.975in^2 so you will have a slightly longer brake pedal.

Front piston bore size. 1.78in/45 or 46mm X2
Rear piston bore size 1.89/48m x1

Front piston area - (((1.78/2)^2)*3.14)*2 = 4.975in/sq
rear piston area - (((1.89/2)^2)*3.14) = 2.80in/sq
Click to expand...

I went with these:
Left Hand - Part No: 120-13290-RD
Right Hand - Part No: 120-13289-RD

4.04in^2, so it should be less pedal travel. We'll find out in a day or two.
 
Hmmm that is like a 20% reduction in piston size, hopefully that caliper is more than 20% stiffer than stock, or else you will be losing clamping force.

Are you going to use an aggressive pad like the 15E-12604K Poly Matrix E?

portiadog1 said:
I went with these:
Left Hand - Part No: 120-13290-RD
Right Hand - Part No: 120-13289-RD

4.04in^2, so it should be less pedal travel. We'll find out in a day or two.
Click to expand...
 
scottryana said:
Hmmm that is like a 20% reduction in piston size, hopefully that caliper is more than 20% stiffer than stock, or else you will be losing clamping force.

Are you going to use an aggressive pad like the 15E-12604K Poly Matrix E?
Click to expand...

I'm starting with the BP-10 pads. I spent a lot of time on the phone with Wilwood tech service, and this was their recommended setup. We'll see if it needs to be tweaked.

I'm waiting on a response from ECR about the bracket drawing.
 
Well I look forward to your report once you have had a chance to test them out. I would guess they didn't want your pedal travel to increase and figured the caliper stiffness and larger rotor should make up for lost brake performance.

If you do want a little more stopping power, look at the Poly Matrix E. They give up nothing on the BP-10's cold, have more friction at all operating temps and have a slightly higher max working rating.

compound_chart-2.jpg



portiadog1 said:
I'm starting with the BP-10 pads. I spent a lot of time on the phone with Wilwood tech service, and this was their recommended setup. We'll see if it needs to be tweaked.

I'm waiting on a response from ECR about the bracket drawing.
Click to expand...
 
ECR did not make/keep a full set of drawings for the mounts, unfortunately. They said they would be happy to do so, if I would bring in the parts. If we change pads or have to remove the calipers, I am happy to do this. I apologize for not asking about this before.
 
portiadog1 said:
ECR did not make/keep a full set of drawings for the mounts, unfortunately. They said they would be happy to do so, if I would bring in the parts. If we change pads or have to remove the calipers, I am happy to do this. I apologize for not asking about this before.
Click to expand...

No worries here, as for me big brakes are just something to add to my never ending list of mods. You have given a ton of new ideas already so for that I am grateful indeed. Keep us posted on how it works for you.
 
I didn't read all 9 pages closely, so if this was mentioned please point it out to me.

Are the rotors keyed in any way to the hat, or is the OP relying solely on those 12 or so bolts loaded in shear to keep the rotor attached to the hub? I didn't see any keys being placed in the original set of pictures.
 
Many many two piece rotors are bolted together in the exact same way. Hence the rotor having the bolt holes.

Rusty Marlin said:
I didn't read all 9 pages closely, so if this was mentioned please point it out to me.

Are the rotors keyed in any way to the hat, or is the OP relying solely on those 12 or so bolts loaded in shear to keep the rotor attached to the hub? I didn't see any keys being placed in the original set of pictures.
Click to expand...
 
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