C6 GrandSport Brakes install

66605 Views 155 Replies 38 Participants Last post by Choo, Nov 9, 2016

94MI9C1

Discussion Starter · Mar 13, 2011

2

Figured I would throw up another thread for what I am getting into within the next few weeks.

I guess the car really didn't need brakes, then I got some killer deals on somethings and figured, oh well I guess I better just do it.

After talking with Tobin at Kore 3, great guy by the way, about the brake setup and I was going to modify to make work on my car, I decided to start hunting for a set of C6 Vette 6 piston fronts and 4 piston rears for calipers, 14 inch rotors in the front with 13.4 inch rotors for the rear.

No I was able to get a complete caliper set off a wrecked 2010 grandsport (same calipers as the Z06 silver instead of red) for pretty cheap and very low miles.

So I picked these up and began hunting down parts to see how cheap I could get away with doing this.

Here is a pic of the calipers.

I looked for sourcing of the rotors and I was going to go with Kore3, but I found a set of rotors for less than 1/2 the price of the rotors from Kore 3, no the machining for the 5 on 5 bolt pattern isn't done as well as the center bore needs to be opened up, but I have a local cnc shop that can handle that for me.

Here are the rotors that I got for the install, not GM but who cares really, as long as they work well, which they should. Hell he boxes with the rotors showed up today, the boxes with all four rotors was like 110 pounds total. I will shoot a comparison picture, old to new tonight when I go out and tinker a little bit with it. They are big, that is for sure.

I am going to have to figure out the parking brake setup as I am not going to pay 800 bucks alone for that setup, I am sure that I can figure that out.

So hopefully I can get this done rather quickly and not so costly, I think that I have most the parts, there are couple of things that I will get from Kore3, but I am truly on the fence about the hubs from them, not that they aren't great, I may just make my own from an old set of brakes, not sure yet.

Stay tuned.....

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94MI9C1

Discussion Starter · #21 · Mar 14, 2011

I don't have the front adapters yet. I wanted to make sure that I have everything all setup with what I am going with in the brakes and then get the adapters right. As the Hub is going to play a key role in the adapter thickness.

Not sure on the rotors I will shoot some pics of them today/ tonight so that you can see if they are. In most regards I am betting that they are just mold copies of the originals.

94MI9C1

Discussion Starter · #22 · Mar 14, 2011

I just looked at his listed here Z06 Rotors

And they are made by Powerstop if that matters and I also sent the seller an email to ask is they are balanced or not.

94MI9C1

Discussion Starter · #23 · Mar 17, 2011

Here is a comparison pic for you, new and old. I would think that the new brakes are going to make a difference. Pic was taken with my phone but I think it came out ok.

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bob94

· #24 · Mar 17, 2011

Nice.... can't wait to see install pics.

94MI9C1

Discussion Starter · #25 · Mar 17, 2011

Thanks Bob it is getting there, but it is a what piece to get from whom type game now. I could make my own hubs, but that pushes the track width out to the point were the spacer/adapter for my rims would be too short. I have another idea I am working over in my head right now, but not sure if that one will work.

I will have to get into that a little later, but I am moving right along

JOHNER

· #26 · Mar 18, 2011

Great comparison pic,should make a huge difference...you ride is coming along nice! good luck with the brake project,it will be worth the restless garage nights

94MI9C1

Discussion Starter · #27 · Mar 18, 2011

Thanks man, yeah it is coming right along for sure.

I went ahead and ordered the hubs and front brackets from Tobin @ Kore 3 last night. It makes sense and really making my own and dinking around with making brackets for the front, wasn't worth it. I could of had the hubs turned out of original rotor/hub assembly, but damn the junkyards around here wanted 35 bucks a piece for rotor/hub assembly, then to "borrow" my buddies lathe was going to cost as well.

Ken Hennessy

· #28 · Mar 22, 2011

Kore3 hubs

Mike,
Did you get the spacer/shim kit with the hubs to set the bearing clearance?

Ken

94MI9C1

Discussion Starter · #29 · Mar 22, 2011

Hey Ken,

I haven't received the hubs yet they will be here Thursday, according to Fed Ex. Is this something that I missed that I am going to need to set them up correctly? I would assume that Tobin would of put them in there for this, but not sure.

Mr pogo

· #30 · Mar 22, 2011

bearing play is set like stock ones, afaik I dont think kore offers a preset bearing option.
there is a washer assortment to set up the caliper so its centered over the rotor.

94MI9C1

Discussion Starter · #31 · Mar 22, 2011

Yeah now that you say that I remember reading something on here about it. But I'll be damned if I can find it again. LOL

94MI9C1

Discussion Starter · #32 · Mar 22, 2011

Ok figured I would update what has been going on, I have the front dismantled as you can guess by the pictures above. I ordered Tobin's hubs, I could of done all of the farting around trying to make something work having to measure measure and measure again for something that has already been figured out. Since I saved on the rotors, I went ahead and purchased the HD hubs for our cars, and the front brackets.

I also picked up a mock rearend this evening, that will most likely end up in the car as mine that is in there has some issues, doesn't do anything drastic, but this is a lower mileage unit that needs to be cleaned up a bit, thanks Mike (94MSP9C1)

Hub's will be here Thursday and I will most likely have everything for the front complete this weekend sometime, I would imagine anyway. May replace the brake lines, all of them, they are crusty and well I just don't feel like dicking with them, waiting on a call back from inline tube about that. Have some parts on order for the rear setup, that crossing my fingers should work.

Trying to get a hold of a plasma cutter so I can hack up my frame rails in the back, so I can get the adapters on order. Can't move a car with big fat brakes on it, that needs at least an 18 inch wheel

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Ken Hennessy

· #33 · Mar 22, 2011

Shim kit

Mhttp://www.impalassforum.com/vBulletin/showthread.php?t=236934&highlight=Kore3ike,
This thread has the info on the shim kit.
I put it on my HD12 kit from Bill last year. It is more time consuming to set up than the standard GM procedure but it think it provides a more solid feel.
Ken

94MI9C1

Discussion Starter · #34 · Mar 22, 2011

Thanks Ken I will see what I come up with on that.

Contrast

· #35 · Mar 22, 2011

Always, ALWAYS doing something to your ride!
Looking at the new Rotors and Cals im thinking
its going to make a world of a difference!

Cant wait to see! Keep up the good work!
So i can be jelouscwm3

94MI9C1

Discussion Starter · #36 · Mar 22, 2011

No need to be jealous, I just have the ability sometimes to find some great deals on things, I sold the Baer Brake setup that I bought at an EXTREMELY great price, for a little more than I purchased it for yesterday, I have to go ship that out pretty quick. So I am feeling pretty good about that.

Also I have to have something new or wanting to try something out on my cars ALOT, it sucks

Contrast

· #37 · Mar 22, 2011

I find it overly crazy that you find time in your schedule to be doing such time consuming projects on your car. Especially with the patience it takes getting each project done to perfection... Wish you lived closer!

with it being spring break and closer to summer... my job has been giving me alot of extra cash. Money to be dumped into the B-body... Still admiring the digi. HVAC, just not willing to trust my wiring with such a project!

Mr pogo

· #38 · Mar 22, 2011

Ken Hennessy said:
Mhttp://www.impalassforum.com/vBulletin/showthread.php?t=236934&highlight=Kore3ike,
This thread has the info on the shim kit.
I put it on my HD12 kit from Bill last year. It is more time consuming to set up than the standard GM procedure but it think it provides a more solid feel.
Ken

interesting, I vaguely remember that thread altho I dont remember seeing anything on kore3's site about it.
big trucks been using various forms of that for the last 30 years, usually supposed to torque the spindle nut to 350 ftlbs

94MI9C1 said:
Hub's will be here Thursday and I will most likely have everything for the front complete this weekend sometime, I would imagine anyway.

Im pretty sure theyll include the instructions on where to cut the spindle, I used my dewalt 18v sawzall with a metal blade then smoothed the cuts with a power grinder and sanding disc.
if you paint the spindles be sure to clean off the paint at the contact points where the adaptor brackets bolt on, iirc thats also where the centering washers should go.

94MI9C1

Discussion Starter · #39 · Mar 22, 2011 (Edited)

Yeah I have all of the manuals from Tobin already, and I am going cut up a brand new spindle

94MI9C1

Discussion Starter · #40 · Mar 22, 2011

Contrast said:
I find it overly crazy that you find time in your schedule to be doing such time consuming projects on your car. Especially with the patience it takes getting each project done to perfection... Wish you lived closer! with it being spring break and closer to summer... my job has been giving me alot of extra cash. Money to be dumped into the B-body... Still admiring the digi. HVAC, just not willing to trust my wiring with such a project!

Yeah it is tough, but I don't sleep much either and I have a detached shop/garage

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