CTS-V Brembo with 14" rotors bracket attemp

[kmv]

Updated: here my thought out install on the cts-v calipers.
To make this work out you have to take a little bite out of the caliper aluminum housing. The caliper will be clock down a bit on 2g but on 1g you have the option to clock it upward by flip the bracket up side down there's a example picture below. As for the calipers clearance against the inside wall\spoke of the rims is has 10mm better clearance then the evo 8 brembo because it sit 10mm further back. If you got ~10mm or more of clearance between the stock AWD calipers and the spokes with your 18" rims then you pass the clearance test. The cts calipers and evo,sti all share the same brake pads too.
These brackets is cut from 1\2" steel. If you like to try this out please pm and I can get these custom cut for.

Part numbers :
25750250 right with pads ~150 @ gmpartsdirect.com or ebay
25750249 left with pads ~ 150
89047727 right with out pads ~ 130
89047726 left with out pads ~ 130

40206-JL-00A Nissan G37\370z Nismo rotors $100 each at the nissan dealership, even cheaper aftermarkets or online


Here's a 1 1\8" holesaw with a 5\16 deep socket for centering and aligning the drill.
<a href="http://s980.photobucket.com/albums/ae289/thk_photos/?action=view&current=IMG_1012.jpg" target="_blank"><img src="http://i980.photobucket.com/albums/ae289/thk_photos/IMG_1012.jpg" border="0" alt="Photobucket"></a>

This is where one of the mounting ears over lap the caliper. Bolt up the bracket from behind the caliper and use the bracket as an alignment tool for drilling. Use the free hole on the bracket beside the calipers arm as an alignment hole to stick the drill in. once every things anlign you can start cutting slowly until you have a good bit. you can also counter sink\port that section out too but Drill it out with hole saw is much quicker and fail proof, either way it should cut like butter since its aluminum.
<a href="http://s980.photobucket.com/albums/ae289/thk_photos/?action=view&current=IMG_1002.jpg" target="_blank"><img src="http://i980.photobucket.com/albums/ae289/thk_photos/IMG_1002.jpg" border="0" alt="Photobucket"></a>

Clean off the the mounting ears.
<a href="http://s980.photobucket.com/albums/ae289/thk_photos/?action=view&current=IMG_0990.jpg" target="_blank"><img src="http://i980.photobucket.com/albums/ae289/thk_photos/IMG_0990.jpg" border="0" alt="Photobucket"></a>

Lay two spacers to flush out that surface due to those uneven rings.
<a href="http://s980.photobucket.com/albums/ae289/thk_photos/?action=view&current=IMG_1000.jpg" target="_blank"><img src="http://i980.photobucket.com/albums/ae289/thk_photos/IMG_1000.jpg" border="0" alt="Photobucket"></a>

<a href="http://s980.photobucket.com/albums/ae289/thk_photos/?action=view&current=IMG_0989.jpg" target="_blank"><img src="http://i980.photobucket.com/albums/ae289/thk_photos/IMG_0989.jpg" border="0" alt="Photobucket"></a>
<a href="http://s980.photobucket.com/albums/ae289/thk_photos/?action=view&current=IMG_0965.jpg" target="_blank"><img src="http://i980.photobucket.com/albums/ae289/thk_photos/IMG_0965.jpg" border="0" alt="Photobucket"></a>
<a href="http://s980.photobucket.com/albums/ae289/thk_photos/?action=view&current=IMG_1023.jpg" target="_blank"><img src="http://i980.photobucket.com/albums/ae289/thk_photos/IMG_1023.jpg" border="0" alt="Photobucket"></a>

1g has more top clearance on there knuckles so you can flip the brackets up side down kinda like this bracket to clock the calipers upward.
<a href="http://s980.photobucket.com/albums/ae289/thk_photos/?action=view&current=ex.jpg" target="_blank"><img src="http://i980.photobucket.com/albums/ae289/thk_photos/ex.jpg" border="0" alt="Photobucket"></a>

 

[psycho]

Looks great. This will be an awesome, low cost, brake upgrade for us when you work everything out. Just curious though, what would give you better clamping force/brake torque....EVO calipers w/ stock size rotors or CTS-V calipers with 370z rotors?

 

[DSM_PWR]

What do the CTS-V Calipers go for?

 

[kmv]

There dirt cheap, $300 a set brand new with pads and clips, for used one ~ $100. The Evo 8 with smaller rotors does have 10% more torque but doesn't really mean its better braking. For example The Evo X went with lesser clamping force in favor of bigger rotors(13.8"). I'll test them out in the spring time to see which is better.

 

[talon187]

i work at carquest ill check and see what they go for. what years do i need to check

 

[Rob10_99]

I think those are from 02-05's, sounds familiar.

 

[juanpac0]

If this works out I'll be ordering the brake upgrade ASAP! Do these need 18" wheels or will they work with EVO wheels you think?

 

[kmv]

If this works out I'll be ordering the brake upgrade ASAP! Do these need 18" wheels or will they work with EVO wheels you think?

yes you will need 18" rims minimum. I also found out they have better clearance then the evo calipers because they sit 10mm further back.

well i know its going to work i was only off by 3mm due the Misinformation from the board. I swore that guy must have use some thing else not 13" rotors.

 

[UnsafeAtAnySpd]

i think those are from 02-05's, sounds familiar.

'04-'07.

 

[psycho]

Any way you can make a bracket for Evo calipers with a 14" rotor?

 

[juanpac0]

Time to save up for some 18's.

 

[kmv]

Any way you can make a bracket for Evo calipers with a 14" rotor?

there's no point of doing that, that would give way too much torque and too much front bais. you know that can get the Evo x combo which is the bigger rotor version. more torque doesn't necessary mean better braking,it the pedel feeling that is what your trying to improve. you can build your up leg up, that would give more torque too and its free.

 

[psycho]

I think I'm going to sell the Evo 8 calipers that I have in favor of the CTS calipers. I don't plan on tracking the car but I do a lot of spirited driving and the CTS setup seems more cost beneficial.

As far as machining, it looks like you just had to do a little to the caliper itself? Which I think might change after you redesign the bracket?

 

[kmv]

Your right the CTS are more economical if you got 18"+ rims and the only brembo option for 1g. There's no machineing involve,I did that with a cutting\porting tool.

 

[pinder91]

Very interesting. Definitely keep us updated!

 

[kmv]

Just got the new bracket back today and bolted everything up again. Every thing fitted perfectly like I expected. I will update the detail install and pictures later on.

 

[juanpac0]

i am excite!

 

[blackGSX2g]

Do you have a print that calls out material thickness and all the dims for your plates? I'm really curious to see how this turns out.

 

[kmv]

Updated up top. This is what a new ones look like, the one in the pictures are used beat up ones that I used for experimenting, they will be rebuild and powder coated to match the rear evo. Cts-v and Evo X side by side.
<a href="http://s980.photobucket.com/albums/ae289/thk_photos/?action=view&current=evocts.jpg" target="_blank"><img src="http://i980.photobucket.com/albums/ae289/thk_photos/evocts.jpg" border="0" alt="Photobucket"></a>

 

[psycho]

Well, looks like i'll be selling the Evo calipers. And a good thing I bought 18's.

Thanks for all the hard work.

 

[Gamble97]

I thought these bolted right up to a 2g? I don't like the use of washers.

 

[blackGSX2g]

Do you have any dimensions on that bracket you made? I buy formed metal from a lot of shops that are sourced lots of high volume jobs for the big OEMs, but some also do low volume/prototype fab work. Both with a water jet as well as laser cut. It would be interesting to see how much these would cost, possibly with a spacer CNC'd or welded on instead of using washers with sloppy tolerances.

 

[kmv]

I actually do used machined spacer\washer because regular store washer tolerance are not good enough. There no point to mill the offset in to the bracket because every knuckles is hair different. The offset is only 3mm so it's no big deal.
Sorry, I can't just hand over the spec\drawing to you because I went through a few prototypes to get to this stage. If anyone wants one,I can send you a set with machined spacer for 75 plus actual shipping, this would help split up my initial investment.
Once there in your hands, you can you could do what ever you want with it and i wouldn't mind...

 

[bedlam]

kmv - I've been waiting to put in an order for the one you made for the evo but I am thinking that maybe me waiting was a good thing because the cts's seem to be a lot better for the price. All the calipers I find for the evo's are 500+. I gotta order new wheels but I am not sure if I wanna get 18" or not. I already have two spare 17" tires. hmmm decisions decisions

 

[kmv]

I know it’s a tuff decisions, price vs size.

The way that I design this bracket any 14" rotors would with a 31-33mm thickness and has enough surface area for the 2.38" tall pads would work. Even if it doesn't have the same bolt pattern or center bore you can get them custom re drill at the machine shop. The offset of the calipers is adjustable just by swap out the spacer for the nissan with your own custom one. If anyone knows any cheaper or better 14" rotors please post them.