Question about Kore3 Brake kit

[online170]

This message was originally intended for Tobin, but his pm box is full, so im posting it here to get some answers. Cheers in advance for any help.

I was looking at purchasing this kit for a 1971 GM A-body (Buick skylark). The car currently has all drums, and i was considering this kit to tuck under my 17's;

http://www.kore3.com/proddetail.php?prod=10336-01

However, im still confused on a couple items, that the site doesnt clarify.

First off, if i opted not to buy any of the "options", ie: caliper, rotors, or pads, the price comes down to $72. Im assuming this includes brake lines, hardware, spindles, and brackets to accept the calipers. If i went this route, could i buy the remaining stuff locally? meaning, will factory C5 stuff work with it, or is it something aftermarket for that kit only.

Second question is with the options, and the upgrades available. I can understand the difference between pads and rotor upgrades. But what about the calipers. What is the difference (in performance and operation) between the C5 PBR's vs. the C5 Z06 for example?

Final question. I have drum brakes on my car right now, and wish to purchase this kit. If i bought only this kit, would i be able to swap everything and have working brakes? (ie: is the kit complete?). Or will i need to get other stuff as well, such as a prop valve, and new master cylinder? If i need to get other stuff, please advise what it is.

Im really impressed with the Kore3 website, and im just doing my homework before placing an order.


Thank you for any help.

[Twentyover]

The reference link sends you to the kit for the afterma0rket ATS spindles., it presumes you've lready purchased the ATS spindles.

Kore3 was very supportive when I sourced calipers on eBay.

I think you need to go back and select the appropriate kit for your spindle, or plan on an aftermarket spindle, depending on the direction you want to head

[cheapthrillz]

"This KORE3 big-brake kit is designed for all C5/C6 compatible knuckles/spindles, including ATS AFX spindles."

This doesn't mean that it comes with the ATS AFX spindles. It just states that it fits the ATS AFX spindles.

$72 doesn't sound right for some reason. I know the flex-kore kit will cost you about 50 and then the brackets should cost another 50, although I could be wrong....

I think this is the bracket kit you would need: http://www.kore3.com/proddetail.php?prod=10083-01 and it is more than 72 bucks.

You should be able to buy the calipers and rotors locally. And I think the only difference between the C5 and C5 Z06 caliper is the color and Corvette logo. The C6 caliper is 25% more rigid than the C5. None of the PBR stuff says Corvette on it.

You will most likely have to purchase a new MC and prop valve. The best way for you to figure out what you need is to give Tobin a call. He can answer any question you have and give you that warm, comfort feeling. Seriously, call him. He already knows the answers to the questions that you have so you will save yourself a lot of research. All of this is coming from 5 months of personal correspondence with him on my own brakes. Good luck.

(And Tobin, if I said something wrong, please correct me.)

[cheapthrillz]

Also, use this to check your wheels for clearance.

This one is for the 325 mm C5 kit: http://www.kore3.com/downloads/fitme...es/DOC0004.pdf

[online170]

the kit for the afterma0rket ATS spindles., it presumes you've lready purchased the ATS spindles.

Thanks. Thats the part that wasnt clear to me on the website, i also thought $72 seemed a little low.

Ill give Tobin a call, but id like to do a little research for myself so i can understand what hes saying .

My goal is basically to purchase a decently priced performance brake option kit. But leave out the off-shelf parts i can pick up at NAPA or something to save on shipping and duty over the border.

The C5 brakes seem to be the best option for that. I did have a look at those brackets as well, but i was unclear on what else id need to purchase to make them work .

[online170]

"
And I think the only difference between the C5 and C5 Z06 caliper is the color and Corvette logo. The C6 caliper is 25% more rigid than the C5. None of the PBR stuff says Corvette on it.

25% more rigid? How does that help? Does it perform any better (meaning, does it stop harder)?

[Yoda4561]

No, but it will handle repeated high speed stops better (slower heat buildup, faster cooling, less chance of rotor warpage). Real world difference is unnoticable unless you track the car, the C5/C6 brakes are quite over-engineered for street duty.

Edit: For some reason I read caliper and thought rotor. The same idea about being generally overbuilt still applies, but yes the C6 calipers can clamp down harder without flexing. This means more pad is in contact with the rotor, better clamping power, reduces uneven pad/rotor wear, and also gives better pedal feedback. Your ultimate stopping power should be limited by the tires you run with any C5/C6 brake setup, unless you're putting them on a 5000 pound boat with sticky race tires.

[cheapthrillz]

Also, if you can scrounge up another $300, spring for the billet hubs.... they're gorgeous (and reduces unsprung weight somewhat). Here are mine:






Just a little free advertising for Tobin lol....shhhhhhh

[online170]

Havent caught onto my cheapskateness yet i see

Thanks for the pix, those look awesome. I guess the alternative to this would be to machine down the drum hubs and rebuild them?

[Apogee]

Havent caught onto my cheapskateness yet i see

Thanks for the pix, those look awesome. I guess the alternative to this would be to machine down the drum hubs and rebuild them?

Thanks for the props JC and sorry for not responding sooner. We had a bit of a computer melt-down the other week and it's made us busier than usual trying to get caught back up.

You can run the Chevy drum hubs instead of our billet GM short-spindle hubs if you prefer, you'll just need to machine down the outside diameter of the flange to 5.90" with a small chamfer. New bearings, seals and studs and you should be good to go. Since you've got a Buick, you'll need to determine if your hubs are the same as the Chevy or something else...flange to the back edge of the caliper should be ~2.415".

Tobin
KORE3