I’ve been working on this kit for a little over 6 months now. I’ve updated the design a couple times and what you see below is the final.











This kit is for 3rd gens and uses the very affordable Wilwood SL4i calipers and C5/C6 rotors. This has to be the best value in brakes possible; Calipers are ~$150 each new if you shop around, C6 rotors are durable and around $50 each, and pads are your typical $150-170 but are 0.8” thick and therefore have a very long life. So low entry price (about even with C5) and the lowest possible consumable cost.

With the 3rd bolt there is more stiffness in the bracket and the loads and stresses are better distributed onto the spindle. With the higher stiffness you can expect less deflection and better pad wear. As far as the stresses into the spindle I’ve never heard of a 3rd gen spindle failing under braking but I also don’t want to be the first one, so for my piece of mind the extra bolt is worth the expense.

New pads are 0.8” thick including the plate. After 2 days on track pad thickness was 0.750 to 0.705, so I anticipate the life that Nape has reported (6 race weekends IIRC). My car is ~3060 with driver and Nape is lighter than that, so yeah our cars are light but I still believe this to be very good pad life, which in the long run will save you a ton of money on consumables if you go to the track a lot.


This kit is $150 and includes brackets, spacers, Grade 8 bolts and washers. These brackets are larger than your typical Ed Miller 2 bolt design so there is more material to start with and more machining time required, and I include hardware. They are laser cut from 0.5” cold roll steel and then the edges are cleaned up and the holes are drilled on a CNC mill.

Group Purchase Offer: if we can get 5 buyers by April 30th we can offer a lower price of $125 for the kit.

I will post up a complete parts list later and I'm also working with Trackbird on the sponsor banner thing.

Thanks for the interest.

Stan

The biggest design change that I made from my original was I made the bracket area round the steering arm smaller so that brake ducts can be fit:

kinda sad I have my brakes done already...... looks really good. the brake ducts are very nice....

Really REALLY nice job Stan!!! Those look awesome!!!


Costas
cars and such...

Interesting design. If I have the Ed Miller kit I'm assuming I can just drill and tap the third hole, what size thread, and what hub? I think my spindles are flexing a bit since both rotors are making contact with the caliper carriers on my C4 HD kit.

I’m using 7/16-20 bolts but if you’re spindles are already tapped for M12 that is fine you’ll just have ream the holes in the bracket for the slightly larger bolts.

The hubs are the regular Camaro rotors cut down, or S10 rotors work as well. For C6 rotors the OD needs to be just under 6” as I recall. For C5 they can be larger.

Makes me wish I had a Third Gen just for this kit. Well done bud. You put some work into it and it shows.

So the standard hub, the non- 1LE hub, right?

correct.

will the 1le hubs work?

As I remember (Stan, correct me if I'm wrong), the 1LE hubs have a slightly wider track and will relocate the rotor. That will prevent it from lining up with the caliper properly.

I "think" the 1LE rotor pushes everything out 0.100", so if you already have those hubs then I guess you can space the caliper out another tenth... if you had to.

Yes, if the hub is wider you should be able to add some washers between the bracket and spindle to move everything out a little bit.

This is a detail that sometimes gets overlooked - I had a set of 3rd gen brake stuff in the shop that had hubs that weren't cut down *quite* enough - a radius on the ID of the rotor would hang up on the OD of the hub. It wasn't very much, and a more casual installer might have just put them on and turned the car loose. Rotors for a given application from different manufacturers may have different dimensions here, so best to double check closely when installing new rotors.

I took .050 or so off the OD of the hub to fix.

Stan - Outstanding work! These are the first brackets I've seen for the 3rd gen that I think are properly designed.

How did you get that nice radius on the OD of the spindle plate?

will you be selling the brake duct adapters?

and while I'm asking questions, what about braided lines?

Alan, you are absolutely right.


thanks Alan!

For the brake duct plate I used 0.065" aluminum sheet, cut out a ~9" circle, drilled a 1/4" pilot hole, then clamped it between these 2 pieces of 3/4 plywood,

Then hammered the edge over.

For everyone else but Alan, I think this is all a bit more elaborate than what is really necessary to do a good job cooling the brakes so don't think this level of detail is necessary.... quite honestly I'm not sure I will even benefit from them since I have really only noticed the slightest hint of brake fade, and that was with my C5 calipers. I'm adding ABS so I plan on using the brakes harder and I thought ducts might be on my list of low hanging fruit so I'm doing it, for the right reasons or not.

I would like to, but with my time commitments currently I don't think I can since it would be me doing the fabrication. We'll see how this all takes off and where the demand ends up. If Alan wants to pick it up the work be my guest.


There are some options. I went with AN-3 using some adapter fittings that I can post up PN's for.

Wow this looks like a great kit. Almost makes me wish I had not done my LS1 brake conversion last year!

I'll take a set.

Great thanks Nape!





This is Summit's list of Wilwood FSLi calipers that go with a 1.25" wide rotor: http://www.summitracing.com/search/brand/w...in?autoview=SKU

The only choice you will have to make is the piston size.

For anyone who doesn't want to do all the calculations, 1 5/8" (1.625") pistons work great for 13" rotors on the stock master cylinder and I've heard that they do well with 12.25" rotors as well. Using a smaller piston gives better modulation then 1 3/4" pistons that most NASCAR/circle track cars run.

I just discovered this, those brackets are awesome! I'm interested but in researching the cost i can't find the SL4i calipers. I found the SL4R calipers but they are twice the price you talk about in the OP. I like to know exactly what I'm diving into before I leap.

Could you please update the info?

I have an 01 SS donor car I've been planning to use the brakes from after i complete the LS1/T56 swap but I like your brackets much better.

Thank you in advance

There wasn't enough demand for the brackets. They were never produced, to my knowledge.

2 sets were made, one set is on my car and the other set is accounted for. I might have some of the "development" brackets still, not sure on quality would have to check if you are interested.

Calipers here: http://m.summitracing.com/parts/wil-120-11132. Currently $160ea

My brother-in-law did the machine work and he recently changed jobs. Not sure if the cnc files still exists or he's interested in making any more of these or not. Probably not.

I didn't realize this product never got off the ground. Too bad, best swap bracket i've seen or heard about. I can see how the specific fitment might have been a hinderance. If it were for LS1 f-body brake swap (since i already have the donor car) I'd be like "shut up and take my money" lol.

Stan, your brackets greatly appeal to me and i'd love to have some like that in my thirdgen but I'm a ways from my brake swap. Thanks for getting back to me.

With a HUGE HUGE HUGE hat tip to Stan (StanIROCz) I finally have put all the BCBK info on my website. Another hat tip to Gary (WDMS, local CMC racer) who helped out a lot as well!

I just upgraded our WRL car to these for our recent event at Daytona and DAMN they are nice.

http://www.witchdoctormotorsports.com/ch265.htm

LOTS OF PICTURES and weights and such.

Enjoy!


Costas
cars and such...

Guys, if any of you are looking for these wilwood calipers, I have 3 of them I can sell for cheap. Two used for 5 seasons on my CMC car, and one brand new one I kept as a spare. I also have the piston seal kit for them, so you can pop those in and they're as good as new. I think I may also have some spare bleeders for them as well:

https://www.summitracing.com/parts/wil-120-11135

http://www.frrax.com/rrforum/index.php?showtopic=18145

Figure a new caliper runs $175, sell all three and the spares/bits for $250

Pranov, looks like your calipers are for a 1.1” rotor, C5 is 1.25” thick.