rll2

iTrader: (8)

I guess I'm confused about the different front brake conversions for a 4th Gen F-body.
I thought the C5 Corvette calipers were 4 piston calipers and the C6 were 6 piston calipers.
But, I've seen C5 calipers with 2 piston calipers.
I don't think I need 6 piston calipers, but don't want to stay with 2 piston calipers.
So, what Corvette/Camaro has 4 piston calipers and what adapter bracket will I need?

Thanks,
Rob

Chris Paveglio

iTrader: (2)

There's a ton of info on brakes. You should really be reading a lot first. FWIW I did a 4-piston brembo on my LS1 TA, fits under 17's with spacers (used base C7 calipers). No bracket needed, just bigger bolt holes. Questions to consider: What wheel size are you running (17s, 18s) and what is the clearance you have? What's your car used for? Road racing, autocross, drag, just street? Budget?

UMI Tech

Hi Rob.

The best answer is Strano's kit.

http://www.stranoparts.com/viewfeature.php?FeatureID=4

It's a win-win because Sam uses our brackets.

And as for parts selection and pad selection, Sam knows it all for these cars.

Chris Paveglio

iTrader: (2)

We don't even know what the OP wants out of his car, aside from "4 piston". I personally do not like any conversion kit that requires me to cut the ears from the knuckles and add yet another thing into the hub mounting stack.

rll2

iTrader: (8)

From what I've read the basic C7 Corvette caliper is (maybe) the best choice for the 4 piston conversion.
I found a thread talking about this conversion, but it was mainly around being able to run 17" wheels.
I plan to use 18" wheels, but haven't picked a wheel yet.
I think I remember something about having 2 different rotor sizes with these calipers, but you had to run the smaller rotor for 17" wheels.
Does any of this sound right?

Thanks,

Chris Paveglio

iTrader: (2)

Check out the vid I made, should answer some questions. It's a little long but detailed.
You can fit the base C7 (aka Caddy ATS brembos) under 17s. Under 18s you can get the C7 z51 (aka J55) with 13.5 rotor.
KNS Brakes .com is a good supplier of inexpensive rotors.

King Nothing

iTrader: (9)

TonyTDE

Ok, So I have been living under a rock for the past few years, I was unaware there was a more budget friendly conversion than a C5 conversion or a Wilwood kit. I have a 95 Trans Am that I got back in 07, and if I remember right the 93-97 F-body's have a different spindle than the later 98-02's. Would the CTS-V brake caliber fit on a LT1 spindle or does it only fit the LS1 spindle? I have toyed with the idea of ordering some spindles off a LS1 car but im not sure if it's necessary. I may still do that as I had the idea of getting a 2nd set of spindles to replace the hub and do a caliber conversion all off the car then swap them out. Thoughts?

Chris Paveglio

iTrader: (2)

Yes the LT1 cars spindles are different than the LS1 car spindles. I don't know if anything would bolt up to the LT1 - I had a 93 for a couple years and dont remember the layout exactly but IIRC it was not condusive to many or any upgrade like you see here. Yeah online photos confirm its super weirdly shaped. You could cut a bunch of the flanges off if you went with a kit that had a mounting plate you sandwich in using the hub bolts probably.

King Nothing

iTrader: (9)

hokeplaya05

iTrader: (3)

go to a wrecking yard or ebay and get a 98-02 front spindle (doesn't matter what model v6 and v8 are the same) and it is a direct swap then you can do all the conversions listed here

King Nothing

iTrader: (9)

Sam Strano

iTrader: (41)

There are other reasons. Rotors cost less. The rotors are lighter. There is no modification needed to make rotors fit. Pads are cheaper than for Brembo calipers. And most critically the piston area isn't greater than the two piston stuff from GM, meaning that the calipers I use are a better match to the stock hydraulics. The point of a brake upgrade is to upgrade, is it not? Calipers clamp using hydraulic force. When that force is spread over a larger piston area the pressure is decreased in front, and increased in the rear, which isn't really what we want or need in this car.

MidwestChassis2

iTrader: (1)

If you have never looked into them we have done a few Kore3 installs on our fabricated housing. They offer a quality product.

http://www.kore3.com/

5.7stroker

iTrader: (36)

When I was looking to do this (got to resolve a vibration issue first) I was considering going with 5th gen 14" camaro rotors and having the bore increased from 67mm to 70mm. I was looking at around $700 for parts. Not sure if anything can be sourced for cheaper. I'd rather go with the bigger 5th gen 14" camaro rotors and bore them out than use the smaller c7 JL9 (like 2014 Stingray base) rotors. On my setup, stopping power > increased unsprung weight. Others have confirmed they will work with my Race Star 17x7 RCE-92-770247DP (4.0" backspacing) Others have also confirmed that this setup will work just fine with a stock 4th gen master cylinder.

5th gen camaro rotors 1771050 $138 for the pair
CTS-V calipers part number 1722287 and 1722288 $260
CTS-V pads HB453F.585 Hawk $84
Acdelco caliper pin kit - 18K1971X $16.17
10.9 mounting bolts 14mm x 2.0 x 40mm metric - Dorman 14006 Caliper Bolt $10.00
(OEM 18060356) M12x1.75 35mm DORMAN 875635 $16.00
Machine shop cost for rotors $80
4GCTSVLines from flynbye, or go Kore3 $85
Brembo stickers $5

Now I have slotted/cross drilled rotors in the rear so I may go with the stoptechs seen here:

5th gen camaro rotors (2011 Chevrolet Camaro SS - 6.2L) to match the bigger CTS-V calipers part number 1722287/88:
https://knsbrakes.com/c/car-items/10...5_Brake+Rotors

or I may just sell my slotted/cross drilled setup and go back to standard in the rear.

Those who have 18" wheels that are going for the ZL1 rotor setup or those who want to keep the stock wheels and go with the c7 JL9 smaller setup, here are some cross drilled/slotted options:

2014 Stingray base c7 JL9 rotors to match calipers with part number 1722586/87:
https://knsbrakes.com/c/car-items/18...5_Brake+Rotors

2014 Stingray ZL1 rotors:
https://knsbrakes.com/c/car-items/18...5_Brake+Rotors

rll2

iTrader: (8)

I decided to buy a pair of the z51 Corvette calipers off eBay
I keep seeing that people are recommending KNS brake for rotors
But all the rotors I see on their website are multi holed rotors, and I really would rather have rotors with just the bolt hole pattern that I need.
Where's the best place to get all the hardware I will need and to get rotors with just the 5X4.75 hole pattern.
This is for a street toy, not a race car nor a daily driver.

Thanks,
Rob

5.7stroker

iTrader: (36)

I'm assuming c6 Z51? Have you tried rockauto and searching for AC Delco rotors under brakes using something like a 2008 Chevrolet Corvette C6 Z51 as the car?

TonyTDE

I will keep an eye out for a set of new spindles to get me started.

HioSSilver

iTrader: (8)

I have a set of ls 4gen spindles. If you want them pm me.

Sam Strano

iTrader: (41)

I have rotors.