Brake pad replacement

Zeromaz

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I’m tired of cleaning wheels. Anyone replace their pads with something that doesn’t cough off so much dust?
 

ZEN357

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PowerStop Brake pads and rotors. No dust!!! Call Jegs or Summit racing for your specific application and they can help sort out what you need.
 

ANGREY

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Can someone outline the tradeoffs with a pad/setup that doesn't create as much dust? I'm guessing that ceramics don't perform as well so the tradeoff is squeal and dust in exchange for slightly reduced performance.
 

AustinSN

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Can someone outline the tradeoffs with a pad/setup that doesn't create as much dust? I'm guessing that ceramics don't perform as well so the tradeoff is squeal and dust in exchange for slightly reduced performance.
Any moderately quick driver can hump a ceramic pad into submission within a few laps on a track. But for a street only car you probably wouldn't notice any difference.

The factory ones are actually quite good. They easily outlast the tires.
 

galaxy

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Any moderately quick driver can hump a ceramic pad into submission within a few laps on a track. But for a street only car you probably wouldn't notice any difference.

The factory ones are actually quite good. They easily outlast the tires.

This is a great statement! You'll hear quite a few guys bag on ceramic pads and how much braking capability you'll lose with them...on the track. On the street, who cares. If you're fading a quality ceramic pad on the street, even some aggressive mountain driving, you're probably being an idiot (OMG, I just sounded like my dad, LOL).
 

Tob

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If you go as far as changing your front pads, do yourself a favor - add caliper studs from Caliperfexion. Makes for much simpler maintenance and you'll no longer be buying new bolts every time you service your brakes and they mitigate thread damage to the aluminum knuckles.
 

Zeromaz

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What are the differences between the two different metals (aside from asthetics) on the Caliperfexion studs?
 

JAJ

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I'm sure Tob will have a more complete answer, but I prefer the black steel versions because they're less likely to corrode in contact with aluminum. They're also stronger, but in this application that's not really a factor.
 

AustinSN

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After this next track day I'll probably be looking into a brake replacement and those studs are going to be the first thing ordered.
 

Tob

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What are the differences between the two different metals (aside from asthetics) on the Caliperfexion studs?

The 4340MP has a slightly higher tensile strength than the 17-4PH stainless as well as having a higher Rockwell number (hardness). These two images may help.

Z%20cali-X5.jpg

Z%20cali1-X5.jpg


That said, either exceeds the necessary strength to clamp the joint between the Brembo caliper body and the aluminum knuckle. Stainless is typically more expensive but doesn't have to be coated and it is heat treated before machining as opposed to 4340 which is done after. In the end the cost of each is fairly close. Note that the specific 17-4PH alloy studs are used in a number of race applications and isn't just a pretty fastener. The company that manufactures them to Caliperfexion's spec also makes them for a large number of race teams across the spectrum. One of them, for example, is for Multimatic and they in turn use them on a number of cars they build for Ford. The GT4 Mustangs use the same 17-4PH alloy on their front and rear knuckles/calipers...

p20171006_110943.jpg

p20171006_110715.jpg

20180126_160656-X4.jpg


In other words, either is up to task in this application. It is more a personal preference decision than anything else. Here's a writeup Terrance did a year or so ago on them.
https://www.svtperformance.com/foru...350-brake-stud-install-other-updates.1131439/

I'm sure Tob will have a more complete answer, but I prefer the black steel versions because they're less likely to corrode in contact with aluminum. They're also stronger, but in this application that's not really a factor.

There is indeed the potential for a galvanic reaction when two differing materials come in contact with one another along with an electrolyte. Be aware though, that this is happening throughout most any car chassis or suspension. Realistically speaking, I think it fair to assume that most don't drive their GT350 through salt/slush baths in cold winter regions and then park their vehicle without cleaning. Most every joint/fastener begins to corrode at that point on some scale or level.

To aid in mitigating the potential for any a reaction at the joint, Caliperfexion supplies a blister pack of ARP thread lubricant. Among other things it does, it protects the A356 aluminum knuckle as well as the 17-4PH stud from any type of corrosion from occurring where the stud makes contact with the knuckle.



After this next track day I'll probably be looking into a brake replacement and those studs are going to be the first thing ordered.

You'll be happy you did come time to change pads, I promise you.
 
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ANGREY

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Awesome information. Which Rockwell scale are they using? Values are way low for any steel really.
 

JAJ

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...There is indeed the potential for a galvanic reaction when two differing materials come in contact with one another along with an electrolyte...

Once you've had to clean this type of mess up on a set of brakes, you rapidly lose interest in doing it again.

...To aid in mitigating the potential for any a reaction at the joint, Caliperfexion supplies a blister pack of ARP thread lubricant...

What? Wait? Why am I using WD40? Did I miss something?

[bcolor=transparent]
...You'll be happy you did come time to change pads...

I couldn't agree more!
 

Tob

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Awesome information. Which Rockwell scale are they using? Values are way low for any steel really.
If you know your scales then only one correlates. That said, the numbers I quoted are right in line with respect to each alloy as necessary for this application.
What? Wait? Why am I using WD40? Did I miss something?
The thread lubricant was added to the kits because it's simply a good idea to use it.:)
 

JAJ

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...The thread lubricant was added to the kits because it's simply a good idea to use it.:)
I think you meant to say "The thread lubricant was added to the kits after you bought yours because it's simply a good idea to use it."
 

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