Z06Fix

I am thinking about buying a set of the rear 18's to put on the front of the car. The only reason I am considering this is being able to run a 14" brake setup. I am mainly looking at the Stoptech ST-60 setup. Is anyone running this behind the stock 18's? I just wasn't sure if the offset is right.

Eric

bowmanized

The stoptech website has some white paper fitment guides you can print out to check against the wheel. Make sure when you go to print the template out you uncheck "Fit to Margins" on your printer.

http://www.stoptech.com/tech_info/wheel_fitment.shtml

0RAAMaudio

I just installed the exact setup two days ago, fits just fine

I also have the 4 piston set on the rear and of course it fits fine as well.

I already knew they fit before I bought them, had seen it done

Rick

0Randy@DRM

Our 14 inch AP kit will clear the stock rear wheel with a small spacer.

Randy
www.dougrippie.com

Z06Fix

Thanks for the info guys. I am still a ways out on being able to buy the brake kit but I figured I would go ahead and pick up the wheels the next time I need tires.

96CollectorSport

Save yourself some cash everytime you change pads by looking at the ST-40 kit. Pads for the ST-40 are up to $100 cheaper per set, it will pay off in the long run.
Just my $.02

J Ritt

Our ST-60 and ST-40 355x32mm BBK's (front and rear) will clear the REAR C5Z06 wheels...the 10.5" wide ones without a spacer. A lot of guys buy an extra set of rears and run them on all four corners of the car. You'd need a 1/4" spacer with the stock 9.5" x 18" front C5Z wheel.

0RAAMaudio

True, the ST-60 pads cost a fair amount more than the ST-40's.

I considered that issue and though not tested or confirmed I can imagine with a bit more even clamping force and are a bit larger I can imagine they may last a bit longer thus helping offset the increased cost. But, that is speculation on my part.

I know of one racer that ran the same pads and rotors all season and another than changed pads for the Nationals just for a bit of assurance they would not go out on him in a 40 minute race.

The first ran 4 pots, the second 6 pots but driving style, number of races, track days for testing, etc, was not discussed so there is no evidence supporting which is the best value.

But, who cares when they last that long!!!!!

I decided to go with the 6 pots up front for a few reasons, one was just knowing it was a better set of brakes than the 4's and cheaper to do it now and not have to change later.

Pad cost, with what I have witnessed, not a concern.

Rick

MySR71

Jeff, the front stock C5Z06 wheel is 17" in diameter, not 18".

96CollectorSport

The ST-60 pad surface is slightly larger which should "in theory" make the pad run cooler and last longer.
However I have seen at Road America two drivers running very similar lap times, who are both fairly agressive brakers, go through pads at a pretty close rate. I work on both of the cars and ended up swapping out the pads at the same time, since it doesn't matter if you have a litte over 1/4" or a little under 1/4" you still are not going to get to far at your next event.
I service 4 cars with StopTechs on them and I think that once the kit is on the cost of consumables on the ST-40 set-up will outweigh any marginal performance benifits of the ST-60. Also I find the bridge on the ST-40 easier to remove than some of the ST-60 calipers, for quicker pad changes.

Everyone has there reasons for choosing 6 or 4 pots, I have serviced and driven both kits and for me I would go with the ST-40 because of the pad cost. I just want to share the info you guys do with it what you will.

0RAAMaudio

It appears 96 has allot more real world experience say on this subject that I do, quite an endorsement for the ST-40's, which I know are great brakes

So now I will admit, part of the reason for going with the ST-60's was the wow factor. A small part of me is into that but only if I can reasonable justify it, I will do very little to a car strictly for cosmetics but do want my cars to look nice no matter what I use them for. (rather understated compared to allot of peoples taste though)

Anyway, you would not really go wrong either way, that is a given.

Rick

Black C5 Z06

What's the difference in the ST-40 and ST-60 kits?

MySR71

The ST-40 is based on their 4-piston caliper. The ST-60 kit uses their 6-piston caliper.

Z06Fix

great info thank you sir

Black C5 Z06

Thanks man. Appreciate it

MySR71

Sure thing.

As has been noted, the pad sizes are different between the two so you might want to check if your favorite pads are available in what ever you are interested in. I would caution that there are more pad manufacturers for these than on StopTech's web site. For instance, CarboTech makes pads for both the ST-60 and ST-40 although neither were listed on their web site the last time I checked.

J Ritt

You are correct...sorry about that!!! You need at least an 18" barrel diameter to clear our kit with the 14" rotor.

J Ritt

There's no more clamping force with the ST-60 vs. the ST-40...that has nothing to do with it. It's merely a matter of pad volume as 96CollectorSport points out.

The ST-40 is a bit easier to work on due to its simplicity, and replacement and service parts & pads are indeed cheaper. Keep in mind that when you rebuild a six piston, you have two more pistons, boots, seals to deal with. You also have the more expensive pads, two extra bolts to loosen every time you change pads, etc. I'm telling you, if you want the absolute best bang-for-the-buck solution, our front-only ST-40 kit is extremely tough to beat. Other upgrades beyond that offer diminishing returns for many people. I say many, because it's really tough to know where the differences between products become critical. For example, if a guy is constantly incinerating his rear pads and rotors, he obviously has heat issues that may mandate a rear BBK. For many however, that never becomes an issue. Therefore, it makes sense to take a stepwise minimalist approach and only upgrade based on needs, particularly if you're on a budget.

All of that said, the ST-60 is visually impressive, offers the bragging rights, etc. To some people, that's the most important thing...to each their own.

J Ritt

Fogot to say...on my personal C5Z, I have the six piston front and four piston rear kit, 14" rotors all around. I switch between carbon ceramic and iron rotors, depending on what test cycle we're on. I have to admit though, I do feel like a slight badass when I have the $15,000 whiz-bang BBK with the composite rotors and big calipers on my car!

Z06Fix

Do you feel much difference between the two setups? (Composite Vs Iron)