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Discussion Starter #1 (Edited)
DISCLAIMER: Not my vehicle, but a vehicle I have modified for the household to further improve safety and capability.


Image album:
https://imgur.com/a/305l0kS

Too lazy to post pictures right now...

but here's what I have got on it so far: (to be edited and updated as additional mods added)

* Primitive Racing triple armor skid plates
- Primitive Racing engine skid plate w/ oil drain plug hole cutout (plastic splash guard trimmed and retained)
- Primitive Racing transmission skid plate
- Primitive Racing rear differential skid plate
* Subimods 2015+ WRX/STI fire extinguisher bracket SM-EXT-BRK/VA
- w/ H3R Performance MX100B - Black Dry Chemical Fire Extinguisher
* RAM Mounts X-Grip smartphone cradle mount RAM-HOL-UN7BU [mounted on RAM Mounts 30" Rigid Aluminum Rod]
* RAM Mounts RAM POD I Universal No-Drill™ Vehicle Mount with 30" Rigid Aluminum Rod & Diamond Adapter Base P/N RAM-B-316-1-30-238U
* Hawk Performance Street Race brake pads P/N HB711R.661 (FMSI D1539) front, HB557R.545 (FMSI D1114) rear.
* BFGoodrich Advantage T/A Sport in 225:60R17

To be installed:
* Fumoto Drain Valve



Eyesight is as excellent as I remember it being on my 2016 Subaru Crosstrek Limited w/ Eyesight loaner vehicle I used when I was waiting for my engine shortblock to get replaced under warranty on my 2014 XV Crosstrek. Handling is still very well-balanced for a tall crossover, though obviously leans towards understeering. Body roll is more than a Crosstrek, but that's expected with the taller roof.

Stock brake pads leave a lot to be desired. They became glazed after an off-road drive using X-MODE's hill descent control at 8 MPH downhill. So I have ordered some Hawk Performance Street Race brake pads, as the low-mode of the Lineartronic CVT provides insufficient engine braking for safe downhill operation. I can't believe Subaru believes that low-mode operation is safe, the engine braking is so weak that one must excessively rely on the braking system to slow the vehicle down on downgrades.

From Hawk Performance's website description of the Street Race compound
Pad Description:
  • Aggressive Torque
  • Great Rotor and Pad Wear Life
  • 100-1200°F Operating Temperatures
  • Smooth and Predictable Control
  • Designed to Deliver High Deceleration Rates
  • Smooth Braking Feel
  • Consistent Brake Release Characteristics
Hawk Performance - Race Proven, Street Legal

For a frame of reference, I have a 2014 Subaru XV Crosstrek 5MT that I am using as a basis for modifications, though I am trying not to go to the extensive/excessive nature of what I have done to my car:
http://www.clubcrosstrek.com/forums/f14/awdfreaks-2014-subaru-xv-5-speed-manual-2083.html

So please do not expect a version 2 of my XV Crosstrek on this build thread, but rather, expect a toned-down mindset to my modification style (emphasis on safety, touge-capable, and adventure-ready).
 

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Discussion Starter #2
Well, I found a screw lodged in the right rear tire.

It is impaled in an area that is not repairable at the edge of the tread right next to the sidewall.

So the Forester is going to get a set of four new BFGoodrich Advantage T/A Sport tires. The stock Yokohama Geolandar G91F tires in P225/60R17, although designed with fuel efficiency in mind, did not impress me in handling, braking, or off-road performance.

The BFGoodrich Advantage T/A Sport tires were chosen for the following reasons:
  • A sportier tire than the standard tires
  • A higher traction rating than stock
  • A higher treadwear rating than stock
  • Cheaper than stock replacement tires
  • Made in the USA
 

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Discussion Starter #3 (Edited)
So I may have made a mistake choosing the Hawk Performance Street Race compound for this Forester's brake pad choice.


Although the Forester will see spirited use (most of the drivers in this household are spirited drivers), they will likely never see the full potential of brake pads with a maximum operating temperature of 1200 degrees Fahrenheit.

One of the criteria I forgot to mention was that the brake pad compound must be legal for use on roadgoing cars in the United States. Although the enforcement of such a rule is borderline nonexistent, I figured to err on the safe side so as to meet or exceed the performance of the original equipment, stock Subaru brake pads. To meet the requirement of being road legal, the compound has to be sold with specific markings as required by respective U.S. laws and regulations. As far as I'm aware, having DOT pad codes printed on the brake pad should suffice.

The factory pads have a DOT brake pad friction rating of FF. In order to meet or exceed this, I needed to choose a compound that would not overheat under severe use (function acceptably at perhaps around 1000 degrees Fahrenheit) while meeting or exceeding the factory friction rating of FF (friction μ 0.35-0.45 at both 0 degrees Fahrenheit and 600 degrees Fahrenheit). This also ensures that Subaru EyeSight will still function properly, instead of choosing an inferior brake pad compound that may hamper the performance of EyeSight.

When shopping brake pads, I usually gravitate to the smaller companies, especially Japanese brake pad manufacturers such as Endless, Project Mu, Winmax, etc. However, the Japanese brake pad manufacturers have no interest in meeting the "read legal" requirements, despite providing brake pads that would meet safety regulations. Smaller American companies such as Carbotech and G-Loc brakes have the same issue, where the products are de-facto safe, they do not meet the road legal criteria. So although they are safe products, because they do not bother with the process required to meet U.S. certification, they do not meet the road legal requirement I set for this specific vehicle.

Doing further research on brake pads with the FMSI pad codes of D1539 [front] and D1114 [rear] on the same day the pads are getting installed, I realized a more-suitable compound was actually available that I overlooked that met the same requirements.


To further clarify, these were the complete requirements I had in mind when searching for brake pads to buy for this specific Subaru Forester:
  • U.S.A. road legal
  • meet or exceed FF friction rating of stock brake pads to maintain safe operation of Subaru EyeSight
  • very high fade resistance (perform acceptably at around 1000° F)
  • safe cold bite
  • somewhat street-friendly
For those unaware, the Hawk Performance Street Race compound is identical to the Hawk Performance DTC-30. Some even say it is a modified DTC-30 for better street characteristics, which is likely the case as they share the same exact operating temperature ranges.


It dawned on me that Ferodo makes a brake pad that better meets those requirements, especially the street friendly characteristics, as I am almost certain the Ferodo DS2500 compound will be quieter than the Hawk Performance Street Race compound. A friend of mine used the Hawk Performance Street Race compound on his old EP3 Honda, with satisfactory performance but still had awful noise. And there are many reviews that support that the Ferodo DS2500 is relatively quiet for its high performance nature. This household's drivers would greatly appreciate a quieter compound that still provides the anti-fade characteristics that far exceed OE-grade brake pads.

Despite not being advertised for the Forester, I found the brake pad part numbers for the Ferodo DS2500 that match the D1539 and D1114 FMSI brake pad shapes, which applies to the following Subaru models, USDM:

  • MY 2013-2017 Subaru XV Crosstrek (Subaru Crosstrek/Subaru XV) [GP chassis]
  • MY 2012-2016 Subaru Impreza non-turbo [GJ/GP chassis]
  • MY 2014-2018 Subaru Forester non-turbo [SJ chassis]
Ferodo DS2500 brake pad part numbers for the above applications:
FCP1639H front
FCP1947H rear



So with that blunder I've made, perhaps a more-suitable solution would be to buy the Ferodo DS2500 brake pads with a set of rotors for the Forester later, then swap the Hawk Performance Street Race brake pads with the matched OE rotors onto my 2014 Subaru XV Crosstrek. But I guess I will at least bed-in the brake pads to the rotors before they may eventually see use on my XV Crosstrek.
 

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Discussion Starter #4
With the new P225/60R17 BFGoodrich Advantage T/A Sport tires and Hawk Performance Street Race brake pads, it really transformed the Forester into a safer and slightly more-fun vehicle to drive.

When the OEM pads were glazed, EyeSight felt very lacking when it would initiate brake assist on stock tires. With the Street Race brake pad compound and these Advantage T/A Sport tires, EyeSight performs excellently. So far, the higher friction brake pads and slightly-sportier tires do not have a negative impact on EyeSight's capabilities. In fact, it enhances the safety capabilities.

For spirited cornering, the BFGoodrich Advantage T/A Sport tires are more gradual at letting loose grip, and seem to have superior roadholding capabilities over the stock Yokohama Geolandar G91F tires.

Overall, significantly-better (if not, overkill) brake pads paired with slightly-sportier tires is not a bad option at all for those who want a better safety margin and/or wish for a more fun drive for those who drive spiritedly.




Picture dump below.

Newly driven









Getting the Primitive Racing skid plates installed...






The oil drain plug hole was optioned for easy oil changes, as this will likely not see severe enough off-road use to warrant a solid plate.


Trimming the plastic engine bay splash guard to work with the engine skid plate was kind of a pain.


Receiving the Hawk Performance Street Race brake pads






Hawk Performance brake pad burnishing instructions (bed-in procedure, bedding procedure)

Hawk Performance requires all brake pads have to be bedded-in with the rotors (new or used) that they will be used against. Properly bedding-in new brake pads results in a transfer film being generated at the pad and rotor interface to maximize brake performance.

Burnishing Instructions

  1. Seal all brake ducts if applicable.
  2. At medium speeds slowly engage brakes 6 to 8 times without coming to a complete stop. DO NOT DRAG BRAKES.
  3. Increase speed to simulate race conditions. At near race speed engage the brakes 6 to 8 times without coming to a complete stop. DO NOT DRAG BRAKES!
  4. Allow the system to cool by immediately parking the car for 15 minutes or longer. Brakes should reach ambient temperature or cool to the touch. Do not engage brakes during cool down period. Remove duct seals. Brakes are now ready to use.

HB711 STREET RACE
HAWK HP800 GG B17
326-1AE03U

HB557 STREET RACE
HAWK HP800 GG B17
325-1CD26U
Hawk Performance Street Race brake pad markings, to include the "GG" friction code that exceeds the factory "FF" friction code.


Hawk Performance Street Race brake pad stickers, which meets leafmark rating [set forth by the Automotive Manufacturers Equipment Compliance Agency (AMECA)] of B, which indicates less than 5% content of the brake pad compound is toxic.


Went off-roading at night on Buzzard Lagoon Road in the Santa Cruz mountains.







Playing with the lights at night...


Quick-access trauma first-aid kit (designed to address severe bleeding and/or rescue breathing) and a little 1 lbs fire extinguisher mounted to a SubiMods 2015+ WRX/STI fire extinguisher seat bracket. Also seen is the Ram Mounts X-Grip and aluminum rod that does not require any drilling and is a completely reversible modification.





 

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Discussion Starter #5
Oh, and I forgot to mention, these BFGoodrich Advantage T/A Sport tires look awesome! :D







 

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Discussion Starter #6
Took the Forester off-roading to Hollister Hills...

Here's some pics to tease you before showing some off-road onboard footage.







 

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Discussion Starter #7
So when I went off-roading at Hollister Hills SVRA, I can safely say I did exceed the approach, departure, and breakover angles of the 4th generation Subaru Forester. I also discovered how amazingly capable they are. Do note that the Primitive Racing skid plates were crucial in being able to get out of the SVRA without needing a tow truck, as the Forester may have had an oil pan ripped off without the plates.

driver (left) front fascia damage from off-roading


passenger (right) front fascia damage from off-roading


minor passenger (right) rear fascia damage from off-roading






Now, onto the videos!

Onboard footage of the course I enjoy the most, the Hollister Hills Adventure Track area at the Upper Ranch. It's the same place that Jeep debuted its Jeep Renegade Trailhawk as shown in this FCA video here: https://youtu.be/Jywa0e6xpao


Forester onboard off-road footage here:

https://www.youtube.com/watch?v=bqaaip-mhh4

https://www.youtube.com/watch?v=V0mH0u7RCk8

https://www.youtube.com/watch?v=adlr6UCfPSQ

https://www.youtube.com/watch?v=BBwBxA0sh0U

https://www.youtube.com/watch?v=K3QQNIaIlKM
 

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Discussion Starter #8
So one thing I noticed when off-roading with the Hawk Performance Street Race brake pads is that it actually makes the brakes perhaps overly sensitive when utilizing hill descent control with X-MODE engaged. I found myself inadvertently stopping the Forester a handful of times on downgrades when I only intended to bring my speed down.

So for those who actually go off-road with their Forester but want better fade resistance, look into the coefficient of friction as well as the friction code of the brake pads you purchase. Do not settle for anything less than an "FF" friction code, and do not go for a "GG" friction code if you want better modulation of the brakes under low-traction situations. Yes, I am basically saying get a compound that will likely retain an "FF" friction code but with a higher maximum operating temperature.

I have confirmed with Akebono (one of the largest OE manufacturers of stock brake pads) that the maximum operating temperature of your typical consumer-grade brake pad (to include most OEM/stock brake pads) is around 572 degrees Fahrenheit. Or at least, that is what a customer service representative told me about their brake pads. So before one purchases brake pads that claim any sort of "fade resistance" or "anti-fade characteristics", check or inquire about the maximum operating temperature. If it does not exceed 600 degrees Fahrenheit, or if they refuse to disclose such information, avoid the product and look elsewhere.

But those worries go away as soon as I hit the pavement... Instead, the upgraded brake pads and stickier tires made for a fun drive out of there with the mountainous twisting road out of the area.


With that, I am even more convinced I should slap the Hawk Performance Street Race pads and matched rotors onto my XV Crosstrek, and buy the Ferodo DS2500 brake pads, which match the stock "FF" friction code and would likely perform better off-road versus the overly-sensitive "GG" friction coded Hawk Performance Street Race pads. Unlike the stock brake pads, the Ferodo DS2500 won't be dangerously-faded when the brake temperatures exceed 600 degrees Fahrenheit like the stock ones would.
 

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Discussion Starter #9
The intent on this trip was to visit the New Idria Mercury Mine which is maybe 30 miles south of Panoche, California. It's one of the largest ghost towns in California.

On the way there, I discovered another Bureau of Land Management area, Laguna Mountain Recreation Area.
https://imgur.com/nyMPF7F


To get there on my presumably-through route, entry into Clear Creek Road has a self-paid $5 toll, cash only.

With a through pathway traced on Google Maps, I proceeded to use what I believed was a southern entrance... only to find it gated just north of the Clear Creek Road gated terminus...

approx. coordinates of gated road northbound to Idria mine
36.368255, -120.756330

https://imgur.com/bLovL8W


https://imgur.com/Oi4yXFG


It turns out the only legal way via land to access the Idria mine is to use Panoche Road north of it, then head south on New Idria Road.


So instead, it became a trip exploring a little bit of the Clear Creek Management Area. Beware, this is part of a large area where naturally-occurring asbestos is prevalent throughout the area.

https://imgur.com/LSjTPkZ


https://imgur.com/sFTxRxw


https://imgur.com/CTOYOIn


https://imgur.com/oG3WC48


https://imgur.com/3nhckXd


Bureau of Land Management route T103 in Clear Creek Management Area
https://imgur.com/SjhDvpB


Afterwards, a trip to Hollister Hills SVRA once again reassured the off-road capabilities of the Subaru Forester.

https://imgur.com/l5RBdc2


https://imgur.com/8XDLCSS
 

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Discussion Starter #10
These videos demonstrate what brake noise to expect with the Street Race brake pad compound by Hawk Performance in various driving conditions. The Street Race brake pad compound features identical characteristics to their DTC-30 race compound which has specialized use in dirt track circle and rally racing use. They even share the same exact operating temperature range of 100 - 1200 degrees Fahrenheit.

Hawk Performance Street Race brake pads P/N HB711R.661 (FMSI D1539) front, HB557R.545 (FMSI D1114) rear...

...Installed on a 2018 Subaru Forester 2.5i Premium w/ CVT.


Forgive the engine drone, but this Subaru is equipped with the Lineartronic CVT.


Brake noise under various city driving conditions.
https://www.youtube.com/watch?v=KUNIs2GO-2c

Brake noise during light, medium, and heavy braking.
https://www.youtube.com/watch?v=4xgW86xkSig

Brake noise during light brake application.
https://www.youtube.com/watch?v=DQhOX-K6vj0
 

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Discussion Starter #11
I also forgot to mention, about a week or so ago, I managed to overheat the AT OIL TEMP twice. Or at least, I managed to get the warning lamp (MIL/idiot light, etc.) to illuminate twice in a manner that did not involve the warning lamp start checkup. This occurred under spirited mountainous driving conditions.

With such a disappointing result in such a short period of spirited driving, I was thinking this 4th gen Forester needs an ATF cooler. More specifically, one that exceeds the cooling capabilities of the factory AT cooler that also functions as a warmer, as it passes through the engine coolant system to "cool" off.

Doing further research, Subaru has a newer style of cooler. However, it is labeled as an engine oil cooler, but I do believe I see AT oil lines going through it as well.

Subaru Ascent factory/stock auxiliary engine oil cooler P/N 45510XC000
https://parts.subaru.com/p/Subaru_2019_Ascent-Touring-wEyeSight-24L/COOLER-ENGINE-OIL/73184232/45510XC000.html

I'm going to ask if this is going to be of benefit for the CVT fluid temperatures.
 

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Discussion Starter #12
After getting the service done at the local Subaru service center, I was very surprised to hear that the brake pads were in a worn condition.


Curious to verify if their claims were unfounded, I took off a brake pad of the left front brake caliper.

They weren't kidding.

This isn't the level of quality I expect from Hawk Performance products. I have had some experience with their products, and never have I seen such a terrible state of the friction material. It looks as if its crumbling away like a brittle cookie.

Even worse, this is with about 5000 miles of driving. Friends and family who have used Hawk Performance brake pads have not had this kind of wear or failure. Although the brake pads work, I cannot accept this as being normal for a street driven vehicle.


https://imgur.com/pvzXILd


https://imgur.com/7RT7zvm



Hawk Performance is going to be getting a call from me.




On the positive side, I got it a ScanGaugeII to be able to read out engine coolant temperature, voltage reading, and of course, the most important one, the CVT fluid temperature.

https://imgur.com/FFiDaK2


https://imgur.com/vPG9HxE



FYI, I did figure out the temperatures to take note of:

Starting at 253 degrees Fahrenheit and above, CVT starts to limit RPM's to around 4000 RPM.

At 266 degrees Fahrenheit and above, CVT fluid overheats and illuminates the "AT OIL TEMP" idiot light/warning light/MIL (malfunction indicator lamp).
 

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Discussion Starter #13
The brake pads at the front went metal-to-metal... *sigh*, time for new brake pads, again.

Contrary to my usual methods in choosing American-made brake pads for multipurpose severe-use brake pads, instead of opting for the usual racing brake pads with good cold bite, I have chosen to go with aggressive street brake pads designed to handle race-level temperatures.

I have purchased the PFC Brakes 0929.10 Z-Rated CarbonMetallic brake pads for the front brakes. These are street brake pads, based on the product description, with unicorn characteristics not much different from the unicorn brake pads I already know work as excellent street brake pads with race capability. I have confirmed Endless brake pad compounds such as the MX72, MXRS, and MX72PLUS possess moderately-low dust, relatively silent braking for temperature capabilities, and maximum operating temperatures that work under severe racing conditions often found in motorsports.

Unfortunately, the rear brake pads with the FMSI pad shape part number of D1114 cannot be purchased from PFC Brakes, as they do not offer any brake pads in the FMSI pad shape part number of D1114. So instead, I opted to choose the Hawk Performance HPS 5.0 as a mild rear brake pad compound to reduce the risk of brake pad fade at the rear. This is not an ideal setup in my current philosophy of brake pad choice, but it seems to be the best option in maintaining the current choice of American-made aggressive street brake pads.

Part numbers bought:
PFC Brakes 0929.10 front brake pads
Hawk Performance HB557B.545 rear brake pads
 

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Discussion Starter #14
So I must further clarify...

The street performance compound characteristics that PFC Brakes Carbon Metallic Vehicle specific compound offers has similar claims as Endless' MX72 brake pad compound. What I'm implying is that it seems PFC Brakes aims to the same level of excellence I have found from Endless' brake pads.

https://pfcbrakes.com/Portals/0/DNNGalleryPro/uploads/2018/6/20/AFTERMARKET PART KEY.pdf

Carbon Metallic® Vehicle specific formulated friction material for maximum performance

Truck and Fleet specific Carbon Metallic® formulation offers upgraded durability, increased longevity, and quieter operation for fleet, towing, and
medium duty applications. Lower cost per mile.

Sportscar- From the track to the street, our sportscar specific Carbon Metallic® formulation offers more stopping power and increased fade
resistance for the high performance driver that demands the most from their BMW, Porsche, Mustang, Corvette or Import. Denoted with an ending
part number of .10 example: 0786.10

https://endless-sport.global/us/products/pad_1a/4

The standard for ceramic carbon metal, for street-conscious track meet users

MX72

MX72 minimizes dust and brake noise while being semi-metallic, improving braking performance at low temperatures. It also increases braking stability at high temperatures and realizes a reduction in rotor aggressiveness. We also worked to polish the pedal touch, which is a strong point of semi-metallic materials.

Recommended for the following people
●Sports users who "Wish to use in various settings from Street to Highway, Circuit, and All-around"
●Those who drive vehicles which are heavy but which have low brake capacity such as minivans and SUVs.

●Proper rotor temperature/50~700℃ ・Average friction coefficient/0.37~0.47
●Materials/Semi-metallic(ceramic carbon metal)
Both claim low-dust, low-noise, while providing exceptional high-temperature fade resistance. I can confirm the Endless brake pads as delivering these characteristics. I guess I can also test PFC Brakes' claim to these same characteristics.



I did some further research regarding two different brake pad shapes. FMSI D929 and FMSI D1539. They are almost exactly the same pad shape, but the largest difference is that the D1539 seems to be a revised D929 with more surface area of the lining material, as if to accommodate larger rotors. Despite this difference, PFC Brakes sells the D929 as the 0929 which is specified to fit applications also using D1539.

And I also searched up additional street-legal brake pads I could possibly use for aggressive street applications. Same brake pad part numbers apply, FMSI D1539 for front, D1114 for rear.



Raybestos Street Performance Specialty Metallic Brake Pads
SP1539XPH front
SP1114XPH rear
 

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Discussion Starter #15
I bedded in the new brake pads on the Subaru Forester. It is running PFC Brakes Z-rated CarbonMetallic front brake pads with Hawk Performance HPS 5.0 rear brake pads. Both brake pads are rated at an "FF" friction rating. My current initial impressions on the Performance Friction brakes is that hte pads have an emphasis on modulation rather than outright heavy bite. At times, it had lower bite than I anticipated from an American brake pad, which typically tout higher friction and strong bite. With an emphasis on modulation, this ".10" street compound really reminds me of the Winmax W3 and Winmax W4 brake pad compounds. They are rather consistent under a wide operating temperature range. Cold bite is as expected from a high performance street compound, a little warming up is needed to get them to have better friction and bite.

Afterwards, I initiated a run on a harsh downhill mountain pass, and can confirm based on my findings and prior experience with high performance brake pads, that the brake pads from PFC Brakes are great. Their company name, Performance Friction, rings true to how they performed.

There was no perceivable fade, these are the most consistent brake pads I've ever tested, even more consistent than Winmax W3 or Winmax W4.

However, these are very different from typical American high-performance brake pad compounds. Since the emphasis seems to be on consistency, the expected steep ramp-up of friction when the pads warm up to higher operating temperatures and higher friction capabilities. Just imagine the factory brake pad friction rating, and imagine it never having severe brake fade into quadruple digit Fahrenheit temperatures.

To my own surprise, this is the second manufacturer of brake pads that has performed the amazing feat of having track-capable fade resistance coupling it with quiet street manners. So PFC Brakes (Performance Friction Brakes) and Endless (Endless Advance) are two brake pad manufacturers I can say with confidence offer unicorn brake pads that combine composed street manners with amazing fade resistance for a street pad.

It would be fair to say the PFC Brakes Z-rated CarbonMetallic street brake pads are the American equivalent to the Endless MX72 street brake pads, as both claim to be well-mannered street pads with track-day capability.

However, the dusting of these PFC Brakes requires long-term evaluation, as does its performance drop-off over time as it wears.



These Z-rated Carbon Metallic brake pads will require me to revise my three characteristic rule of brake pads. My initial rule was that one had to pick two of three characteristics:
  • street-friendly manners
  • high-temperature capability
  • cheap
Amazingly, these Performance Friction brake pads actually fulfill all three of these. But due to the difficulty of accessing them, I will change the "cheap" characteristic bullet point to "cheap/accessible", as trying to get these pads is kind of a pain, there are not too many vendors that stock PFC Brakes, Performance Friction brake pads.
 

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Discussion Starter #16
So I think the choice of rear brake pads is more insufficient than I thought.

The Hawk Performance HPS 5.0 brake pads have a low maximum operating temperature of 750 degrees Fahrenheit. The PFC Brakes Z-Rated Carbon Metallic brake pads presumably have a maximum operating temperature of well into four digits Fahrenheit. (I am awaiting confirmation on their maximum operating temperature. I think the weaker rear brake pads are taxing the front brake pads.

I also found out I foolishly forgot that the DOT 3 brake fluid is still in the brake system, as I managed to get brake fluid fade on a spirited downhill drive.


But not all is bad. With these Performance Friction brake pads, these are the easiest brake pads I've used to initiate threshold braking. As stated before, the only other brand of brake pads to match such modulation are Winmax brake pads.
 
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