Stock Brakes Severe Let Down...

robbo mcs · 09-30-2014, 05:30 AM

Quote:

Originally Posted by MaynardZed

No C clamp on the F8x because it's a monoblock caliper that stays on while changing the pads. Just press firmly with the old pad in place on those metal tab things. If that doesn't work you can use a big flat head and press carefully on the piston(s) itself prying against he rotors.

If you use a big flathead screwdriver then I would recommend putting some masking tape around the tip. That will reduce the risk of scratching the rotors

You should be able to do it with your fingers though.

One other tip, before you try and push back the pistons take the top off the brake fluid reservoir.

MaynardZed · 09-30-2014, 09:30 AM

Quote:

Originally Posted by robbo mcs

If you use a big flathead screwdriver then I would recommend putting some masking tape around the tip. That will reduce the risk of scratching the rotors

You should be able to do it with your fingers though.

One other tip, before you try and push back the pistons take the top off the brake fluid reservoir.

Good tip on the reservoir, especially if you have to compress quite a bit going from worn out pads to new thick ones.

Tape probably a good idea but only the screwdriver shaft touched the outside edge of the rotor and the tip was on the piston. Could probably do it with your fingers too.

Got my Carbotechs on yesterday no problem. They squeal worse than Ned Beatty though, wow!

LDSM · 10-15-2014, 12:16 AM

Has anyone tracked the CCB's yet, Im curious how those hold up to a trackday

Gearhead999s · 10-23-2014, 08:13 PM

Quote:

Originally Posted by Sam@ModeCarbon

Bringing this thread back. One track day completely killed our pads as well.

Steels or CCB's?

CanAutM3 · 10-23-2014, 09:10 PM

I did not have such a bad experience with the stock iron brakes on my M4.

I did not expect stock pads to fully take the abuse of a 3 day track event. But I was surprised by how well they held up. I did a fair bit of brake management (proper cool down, avoid abusive braking, etc) and I did not get any bad pad deposit, did not glaze the brakes and never got any fade. The pads did wear down significantly though, to the point of needing replacement after the 3 days. But IMO, that is expected from street pads. The stock pads performed much better than I expected.

I can't wait to try out the brakes with proper track pads

.

See here for my complete track review.

peter_s · 10-24-2014, 03:30 AM

Quote:

Originally Posted by CanAutM3

I did not have such a bad experience with the stock iron brakes on my M4.

I did not expect stock pads to fully take the abuse of a 3 day track event. But I was surprised by how well they held up. I did a fair bit of brake management (proper cool down, avoid abusive braking, etc) and I did not get any bad pad deposit, did not glaze the brakes and never got any fade. The pads did wear down significantly though, to the point of needing replacement after the 3 days. But IMO, that is expected from street pads. The stock pads performed much better than I expected.

I can't wait to try out the brakes with proper track pads

.

See here for my complete track review.

I haven't done 3 days with my stock pads, but my experiences are very similar to yours. I think the stock pads are ok for what they are. I did fade mine once coming in to hot into one corner after driving hard a couple of laps. Just backed off a little and then they were ok again.

I can take some pics of my discs, they look surprisingly ok. I can see some deposits but it's not bad.

robbo mcs · 10-24-2014, 04:05 AM

Quote:

Originally Posted by peter_s

I haven't done 3 days with my stock pads, but my experiences are very similar to yours. I think the stock pads are ok for what they are. I did fade mine once coming in to hot into one corner after driving hard a couple of laps. Just backed off a little and then they were ok again.

I can take some pics of my discs, they look surprisingly ok. I can see some deposits but it's not bad.

x3 vote here for the "stock pads are not as bad as I expected". Couple of track days with my wife driving the car all day and me doing a couple of sessions. The pads are around 2/3 worn, but held up pretty well, no deposits etc.

///Mobbin · 10-27-2014, 01:13 AM

Do they offer Endless mx72 pads for the F80/82? I'm really enjoying those on my S4 right now.

I wanted to add that although I used to run race pads on my C2S (PFC '08's, loved them), I've now gotten lazy about pad changes and the mx72's, along with proper brake fluid, are the one hybrid pad I've heard folks having success with (good temp rating and civil on the street). They've worked well for me so far, both track and street and I just run them all the time. The street performance is actually close to stock as well and they don't screech or squeal. Having said that I think these are a good option for a novice or intermediate but may not provide the stopping power desired for intermediate+ and beyond.

Also, they are a little pricey and for that reason I just run them up front and maintain the stock pads in the back. My intention is to monitor the stock rears and swap them to a cheaper high performance street pad if they aren't holding up. Finally, run a good high temp brake fluid, it's a must, right now I run Endless RF-650 but I've also heard good things about Castrol SRF, Motul 600, and Motul 660. Do a wet and dry boiling point comparison between fluids if you are considering your options here. Anyway, hope this info is useful to folks.

mastek · 10-27-2014, 03:15 AM

Track pads, Racing Brake Fluid and proper cool down after hot laps would have yielded better results for you.

And the "other disappointments" you mention ... would those be the car overheating, by any chance??

F82FTW · 11-02-2014, 11:12 PM

Quote:

Originally Posted by Sam@ModeCarbon

Bringing this thread back. One track day completely killed our pads as well.

No joke...this shit is serious yo.

I haven't even gone out again for fear of experiencing the same problems again.

heckyeahbro69 · 11-04-2014, 09:54 AM

mine are fine after 2 days and 8 sessions at daytona. repeated braking from 140-150 mph and mine aren't shaking. they handled it much better then my stock evo 10 brakes which were ruined after 1 day at homestead.

VictorH · 11-04-2014, 05:02 PM

Quote:

Originally Posted by heckyeahbro69

mine are fine after 2 days and 8 sessions at daytona. repeated braking from 140-150 mph and mine aren't shaking. they handled it much better then my stock evo 10 brakes which were ruined after 1 day at homestead.

What club did you run with at Daytona? Would love to run there sometime.

heckyeahbro69 · 11-06-2014, 09:22 AM

nasa. theres another one in december. its through a different club though and its like twice as much as i paid with nasa.

http://www.motorsportreg.com/events/...8#.VFuR4DTF8vY

M4Ken · 08-20-2016, 02:10 AM

In owning a 2010 M3 for 5 years I had no particular issues with brake wear. After buying a new 2016 M4 I have twice melted all 4 sets of pads and warped all rotors in 2 short days on the track. Same track, same driving conditions, same driver. Anyone knows what gives?

Gearhead999s · 08-20-2016, 09:19 AM

Quote:

Originally Posted by M4Ken

In owning a 2010 M3 for 5 years I had no particular issues with brake wear. After buying a new 2016 M4 I have twice melted all 4 sets of pads and warped all rotors in 2 short days on the track. Same track, same driving conditions, same driver. Anyone knows what gives?

And your on stock pads?

F82FTW · 08-20-2016, 03:16 PM

Quote:

Originally Posted by M4Ken

In owning a 2010 M3 for 5 years I had no particular issues with brake wear. After buying a new 2016 M4 I have twice melted all 4 sets of pads and warped all rotors in 2 short days on the track. Same track, same driving conditions, same driver. Anyone knows what gives?

You said it...

Powerslide · 08-20-2016, 04:43 PM

Quote:

Originally Posted by M4Ken

In owning a 2010 M3 for 5 years I had no particular issues with brake wear. After buying a new 2016 M4 I have twice melted all 4 sets of pads and warped all rotors in 2 short days on the track. Same track, same driving conditions, same driver. Anyone knows what gives?

If you have the standard brakes on an F8x car, never ever drive with the stock brake pads on the track... Plain and simple.

Many forum members here upgrade to Pagid RS29's or other legitimate track pads. I ran the crap out of my brakes with Pagid RS29's on the stock rotors for 4x25-30 minute sessions each (getting up over 100 on several portions of the track, and then rapidly braking down to 30-35 for each lap - for about 60+ laps in one day). Absolutely no brake judder whatsoever - it is so worth learning how to swap out your own pads for track days...

kitesurfer · 08-20-2016, 07:38 PM

Quote:

Originally Posted by M4Ken

In owning a 2010 M3 for 5 years I had no particular issues with brake wear. After buying a new 2016 M4 I have twice melted all 4 sets of pads and warped all rotors in 2 short days on the track. Same track, same driving conditions, same driver. Anyone knows what gives?

your rotors are not warped, you have deposits from the pads, Do several hard breaking 80-0 when pads are cold to scrub off deposits, repeat if needed. Track pads will solve your problems going forward

F82K2S0 · 08-23-2016, 02:16 PM

I use Endless me20 pads for track days, they work just as good on my M4 as they did on my e92 m3 except they are much easier to install on f82.

TRZ06 · 08-23-2016, 06:55 PM

Quote:

Originally Posted by kitesurfer

Quote:

Originally Posted by M4Ken

In owning a 2010 M3 for 5 years I had no particular issues with brake wear. After buying a new 2016 M4 I have twice melted all 4 sets of pads and warped all rotors in 2 short days on the track. Same track, same driving conditions, same driver. Anyone knows what gives?

your rotors are not warped, you have deposits from the pads, Do several hard breaking 80-0 when pads are cold to scrub off deposits, repeat if needed. Track pads will solve your problems going forward

I bet they are warped.

I have had my front rotors replaced twice in 13,000 miles for them warping and that is only from street driving.

gthal · 08-23-2016, 07:37 PM

Quote:

Originally Posted by kitesurfer

your rotors are not warped, you have deposits from the pads, Do several hard breaking 80-0 when pads are cold to scrub off deposits, repeat if needed. Track pads will solve your problems going forward

Quote:

Originally Posted by TRZ06

I bet they are warped.

I have had my front rotors replaced twice in 13,000 miles for them warping and that is only from street driving.

I agree with kitesurfer... I'd bet $$ they are not warped. Warped rotors are WAY over diagnosed by dealers and brake shops. You have judder and they say they are warped. Most often it is uneven pad deposits.

TRZ06, if you warped 2 sets during street use it is a complete anomaly!! These rotors aren't known for being easily warped and stand up to massive track abuse. I've never warped a set of rotors on any of my E92 or F82 cars on the street or at the track.

TRZ06 · 08-23-2016, 08:41 PM

Quote:

Originally Posted by gthal

Quote:

Originally Posted by kitesurfer

your rotors are not warped, you have deposits from the pads, Do several hard breaking 80-0 when pads are cold to scrub off deposits, repeat if needed. Track pads will solve your problems going forward

Quote:

Originally Posted by TRZ06

I bet they are warped.

I have had my front rotors replaced twice in 13,000 miles for them warping and that is only from street driving.

I agree with kitesurfer... I'd bet $$ they are not warped. Warped rotors are WAY over diagnosed by dealers and brake shops. You have judder and they say they are warped. Most often it is uneven pad deposits.

TRZ06, if you warped 2 sets during street use it is a complete anomaly!! These rotors aren't known for being easily warped and stand up to massive track abuse. I've never warped a set of rotors on any of my E92 or F82 cars on the street or at the track.

I have no clue what the issue is on mine.

I just know that both times they measured them they were warped.

I'm on my 3rd set of rotors now and it's starting to come back already.

10-15-2014, 12:16 AM	#69
LDSM Captain 344 Rep 686 Posts Drives: ... Join Date: Jun 2012 Location: ... iTrader: (0)	Has anyone tracked the CCB's yet, Im curious how those hold up to a trackday
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10-23-2014, 09:10 PM	#71
CanAutM3 General 21117 Rep 20,741 Posts Drives: 2021 911 turbo Join Date: Jan 2012 Location: Montreal iTrader: (1) Garage List 2022 Audi RS6 [10.00] 2021 Porsche 911 turbo [10.00]	I did not have such a bad experience with the stock iron brakes on my M4. I did not expect stock pads to fully take the abuse of a 3 day track event. But I was surprised by how well they held up. I did a fair bit of brake management (proper cool down, avoid abusive braking, etc) and I did not get any bad pad deposit, did not glaze the brakes and never got any fade. The pads did wear down significantly though, to the point of needing replacement after the 3 days. But IMO, that is expected from street pads. The stock pads performed much better than I expected. I can't wait to try out the brakes with proper track pads . See here for my complete track review.
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10-27-2014, 01:13 AM	#74
///Mobbin Colonel 1478 Rep 2,672 Posts Drives: m3 Join Date: Jul 2011 Location: Houston iTrader: (3)	Do they offer Endless mx72 pads for the F80/82? I'm really enjoying those on my S4 right now. I wanted to add that although I used to run race pads on my C2S (PFC '08's, loved them), I've now gotten lazy about pad changes and the mx72's, along with proper brake fluid, are the one hybrid pad I've heard folks having success with (good temp rating and civil on the street). They've worked well for me so far, both track and street and I just run them all the time. The street performance is actually close to stock as well and they don't screech or squeal. Having said that I think these are a good option for a novice or intermediate but may not provide the stopping power desired for intermediate+ and beyond. Also, they are a little pricey and for that reason I just run them up front and maintain the stock pads in the back. My intention is to monitor the stock rears and swap them to a cheaper high performance street pad if they aren't holding up. Finally, run a good high temp brake fluid, it's a must, right now I run Endless RF-650 but I've also heard good things about Castrol SRF, Motul 600, and Motul 660. Do a wet and dry boiling point comparison between fluids if you are considering your options here. Anyway, hope this info is useful to folks. __________________ 2021 Alfa Romeo Stelvio Quadrifoglio \| 2.9L \| Trofeo White Tri-Coat \| 8-spd Last edited by ///Mobbin; 10-28-2014 at 06:50 AM..
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10-27-2014, 03:15 AM	#75
mastek e36s54, e70x5d 151 Rep 1,723 Posts Drives: slow Join Date: Aug 2008 Location: Los Angeles, CA iTrader: (15)	Track pads, Racing Brake Fluid and proper cool down after hot laps would have yielded better results for you. And the "other disappointments" you mention ... would those be the car overheating, by any chance??
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11-04-2014, 09:54 AM	#77
heckyeahbro69 Captain 518 Rep 629 Posts Drives: m3 Join Date: May 2013 Location: united states iTrader: (0)	mine are fine after 2 days and 8 sessions at daytona. repeated braking from 140-150 mph and mine aren't shaking. they handled it much better then my stock evo 10 brakes which were ruined after 1 day at homestead. __________________
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11-06-2014, 09:22 AM	#79
heckyeahbro69 Captain 518 Rep 629 Posts Drives: m3 Join Date: May 2013 Location: united states iTrader: (0)	nasa. theres another one in december. its through a different club though and its like twice as much as i paid with nasa. http://www.motorsportreg.com/events/...8#.VFuR4DTF8vY __________________
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08-20-2016, 02:10 AM	#80
M4Ken Registered 0 Rep 2 Posts Drives: 2016 M4 Cabriolet Join Date: Jul 2016 Location: Vancouver iTrader: (0) Garage List 2016 M4 [0.00]	M4 brakes In owning a 2010 M3 for 5 years I had no particular issues with brake wear. After buying a new 2016 M4 I have twice melted all 4 sets of pads and warped all rotors in 2 short days on the track. Same track, same driving conditions, same driver. Anyone knows what gives?
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08-23-2016, 02:16 PM	#85
F82K2S0 Private First Class 72 Rep 140 Posts Drives: IOMG G82/MG F82/AW E92 Join Date: Sep 2014 Location: 92008 iTrader: (0)	I use Endless me20 pads for track days, they work just as good on my M4 as they did on my e92 m3 except they are much easier to install on f82. Last edited by F82K2S0; 08-23-2016 at 03:34 PM..
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