R50/53 Painting brake calipers
Here's what I was telling you , all you had to to was spray them once , wire brush them and spray one more time and then paint. I even went rite over the old paint and it evened out very well.. you DONT NEED to meticulously prep them. Trust me ! Pm me anytime and ille send you current pics of my calipers and other than them being dirty , I bet the paint will be just as nice as it is today.
The pads and discs are finally getting broken in, and I'm starting to really like them, can't wait for warmer weather and track days!
cooling ducts come soon too
Honestly, I don't know how you guys are racing on those little stock brakes. I would think after 9 or 10 good hard slow downs you'd be completely faded.
The nicest part about the JCW GP brakes is they bolt right up! It's one of the easiest mods you'll ever do.
Last edited by cut7; Feb 19, 2021 at 07:42 PM.
carbon ceramic for me...have not yet tested mine other than a few miles yet either OR my coilovers and other suspension mods THOUGH I GET TO TUESDAY after the alignment !
but the few miles after breakin they felt wayyy better than my stockers but my stock ones WERE brembo rotors and pads and imo they SUUUUUUUUUCKED. Felt like they were too hard of a compound or were glazed over though they weren't glazed and had like 75% life left.. I sold them and guy who bought them said even those were better than his oem so I can't imagine how much stock/oem must suck.
but the few miles after breakin they felt wayyy better than my stockers but my stock ones WERE brembo rotors and pads and imo they SUUUUUUUUUCKED. Felt like they were too hard of a compound or were glazed over though they weren't glazed and had like 75% life left.. I sold them and guy who bought them said even those were better than his oem so I can't imagine how much stock/oem must suck.
For future viewers, for the love of god, don't do what minimanadam did, his example is lazy and half-assed.
The retaining clips weren't even removed and were painted over. He is a muppet who's advice shouldn't be followed.
You only changed the modulation and force being applied, you wouldn't have changed cold stopping distances unless you improved tire compound or brake compound for the temp of which you are using the brakes in.
Also, your cross-drilled rotors are worst for brake fade resistance than solid rotors -- which is key in preventing brake fade. Something something thermal dynamics and having less material something something.
For future viewers, for the love of god, don't do what minimanadam did, his example is lazy and half-assed.
The retaining clips weren't even removed and were painted over. He is a muppet who's advice shouldn't be followed
Also, your cross-drilled rotors are worst for brake fade resistance than solid rotors -- which is key in preventing brake fade. Something something thermal dynamics and having less material something something.
For future viewers, for the love of god, don't do what minimanadam did, his example is lazy and half-assed.
The retaining clips weren't even removed and were painted over. He is a muppet who's advice shouldn't be followed
If you swapped in some brembo blanks, that would be a much better setup. Your cross-drilled rotors are a worse performing rotor than a solid rotor.
For future viewers, for the love of god, don't do what minimanadam did, his example is lazy and half-assed.
The retaining clips weren't even removed and were painted over. He is a muppet who's advice shouldn't be followed.
For future viewers, for the love of god, don't do what minimanadam did, his example is lazy and half-assed.
The retaining clips weren't even removed and were painted over. He is a muppet who's advice shouldn't be followed.
a) It would just turn into a big argument, & I have not the time nor the inclination to deal with such.
and,
b) I get the impression (from your post & what I inferred from your screen-name) that you wouldn't listen anyway.
I usually don't like to pull my trump card on forums, but in the interest of nipping this in the bud, I have a Masters degree in Mechanical Engineering (& one in Electrical Engineering as well). I know more about thermodynamics than any 10 people you will run into. So unless you have a PhD in thermodynamics, you have no place trying to correct me.
I noticed you deleted most of your original post. Serendipitously, it is immortalized in my quote.
Also, I don't know MiniManAdam — or for that matter, anyone else on this thread — but unless he's your bestie, & you're just razzing him, talking smack about people on the internet is considered bad form.
Umm...Where do I start? You are incorrect on so many levels. I'm not even going to try to school you because:
a) It would just turn into a big argument, & I have not the time nor the inclination to deal with such.
and,
b) I get the impression (from your post & what I inferred from your screen-name) that you wouldn't listen anyway.
I usually don't like to pull my trump card on forums, but in the interest of nipping this in the bud, I have a Masters degree in Mechanical Engineering (& one in Electrical Engineering as well). I know more about thermodynamics than any 10 people you will run into. So unless you have a PhD in thermodynamics, you have no place trying to correct me.
I noticed you deleted most of your original post. Serendipitously, it is immortalized in my quote.
Also, I don't know MiniManAdam — or for that matter, anyone else on this thread — but unless he's your bestie, & you're just razzing him, talking smack about people on the internet is considered bad form.
a) It would just turn into a big argument, & I have not the time nor the inclination to deal with such.
and,
b) I get the impression (from your post & what I inferred from your screen-name) that you wouldn't listen anyway.
I usually don't like to pull my trump card on forums, but in the interest of nipping this in the bud, I have a Masters degree in Mechanical Engineering (& one in Electrical Engineering as well). I know more about thermodynamics than any 10 people you will run into. So unless you have a PhD in thermodynamics, you have no place trying to correct me.
I noticed you deleted most of your original post. Serendipitously, it is immortalized in my quote.
Also, I don't know MiniManAdam — or for that matter, anyone else on this thread — but unless he's your bestie, & you're just razzing him, talking smack about people on the internet is considered bad form.
Umm...Where do I start? You are incorrect on so many levels. I'm not even going to try to school you because:
a) It would just turn into a big argument, & I have not the time nor the inclination to deal with such.and,b) I get the impression (from your post & what I inferred from your screen-name) that you wouldn't listen anyway
a) It would just turn into a big argument, & I have not the time nor the inclination to deal with such.and,b) I get the impression (from your post & what I inferred from your screen-name) that you wouldn't listen anyway
But, you're not here to have a discussion, you're here to brag. Brag about how much better your brakes are over the OPs.
How much better you think you are because of your degree.
But, you seem to have more questions than answers in this thread.
So, you can play the **** measuring game where you get to brag about your 13" **** that's never been used or understand there are likely some **** stars here who have the experiences/results/careers to help guide you thru your first experience.

I noticed you deleted most of your original post. Serendipitously, it is immortalized in my quote.
Also, I don't know MiniManAdam — or for that matter, anyone else on this thread — but unless he's your bestie, & you're just razzing him, talking smack about people on the internet is considered bad form.
Also, I don't know MiniManAdam — or for that matter, anyone else on this thread — but unless he's your bestie, & you're just razzing him, talking smack about people on the internet is considered bad form.
"How dare he bring up thermal dynamics blah blah, doesn't he know who I am!!"
Adorably, you have no clue of my background or education, but just assumed yours is simply "better".
But, my original point is this:
You bragging about your brakes being so much better, is 100% pointless in this topic about painting brakes. We get it, you have something to prove due to insecurity issues.
My criticism of minimanadam's laughable attempt at painting his calipers while doing as little as possible to make it look good, is very much on topic.
Knock it off guys. This petty bickering is what gets a thread truncated. There is useful information on this and other related threads that future enthusiasts may find useful. T'would be a shame for this one to disappear. If you really want to go at it, PM each other and the best man win.
Amen to that!
Not an option at all. 17" minimum. This what's on my car; & I tell people, I don't have brakes, I have an anchor! My car doesn't slow down, it stops!...on a dime!...& gives you nine cents change!
Honestly, I don't know how you guys are racing on those little stock brakes. I would think after 9 or 10 good hard slow downs you'd be completely faded.
The nicest part about the JCW GP brakes is they bolt right up! It's one of the easiest mods you'll ever do.
Honestly, I don't know how you guys are racing on those little stock brakes. I would think after 9 or 10 good hard slow downs you'd be completely faded.
The nicest part about the JCW GP brakes is they bolt right up! It's one of the easiest mods you'll ever do.
R56 GP brakes are even better! They are 6 piston fronts and if you think your Mini ‘stops’ right now, imagine how quick it would come to a standstill with an R56 GP master cylinder and the 6 piston calipers!
These fronts you have are not from a GP. They are R56 JCW 4 piston fronts. And I agree they are fantastic. They are actually much better than what came on the R53 GP (2 pistons)
R56 GP brakes are even better! They are 6 piston fronts and if you think your Mini ‘stops’ right now, imagine how quick it would come to a standstill with an R56 GP master cylinder and the 6 piston calipers!
R56 GP brakes are even better! They are 6 piston fronts and if you think your Mini ‘stops’ right now, imagine how quick it would come to a standstill with an R56 GP master cylinder and the 6 piston calipers!
My car originally came with real JCW 295mm front brakes (not the Gen 2 brakes which have a different hose attachment) but the actual JCW Gen 1 caliper (same brake hose as stock Gen 1 brakes). That's the easiest way to tell the difference between real Gen 1 JCW caliper, & the "poor man's JCW conversion" (Gen 2 caliper). BTW, the disk is the same for Gen 1 JCW & Gen 2 standard. And as far I can tell, there is no difference in performance between the two (given the same pad compound). On that note, there is a difference in performance between the 280mm & 295mm disks.
I will tell you that there is a marked increase in braking power, along with shorter stopping distance with my system (I measured it). I should note that I'm just using an auto parts store brand premium ceramic pad; nothing fancy. When these wear out, I plan on installing EBC Blue pads.
If someone wants to do a side-by-side comparison, please PM me; I love gathering empirical data! I'm in So Cal.
The Gen 1 GP should have single piston brakes, and the easiest way to tell them from Poor Mans R56 caliper/assembly are they have a thick, curved bar which follows the shape of the hub, where the R56 have a thin straight bar. This can be seen through the spokes of the wheel.
The GP2 brakes used the same traditional shaped Brembo caliper as a BMW 1M, but in red with JCW logos, where the 2nd Gen JCW upgrade has a MINI "wings" inspired caliper.
The GP2 brakes used the same traditional shaped Brembo caliper as a BMW 1M, but in red with JCW logos, where the 2nd Gen JCW upgrade has a MINI "wings" inspired caliper.
Knock it off guys. This petty bickering is what gets a thread truncated. There is useful information on this and other related threads that future enthusiasts may find useful. T'would be a shame for this one to disappear. If you really want to go at it, PM each other and the best man win.
Cut's misunderstanding of how brakes work, and him trying to push that misunderstanding out as facts, is what causes myths to perpetuate.
Without derailing this thread even further... this following thread is where all of the braking info is located:
https://www.northamericanmotoring.co...rs-rotors.html
Curiously, no posts from Cut with his vast racing experience and career in brake engineering and development.
The Gen 1 GP should have single piston brakes, and the easiest way to tell them from Poor Mans R56 caliper/assembly are they have a thick, curved bar which follows the shape of the hub, where the R56 have a thin straight bar. This can be seen through the spokes of the wheel.
Those look nice! Did you pain them? or were they already painted?
How does that work on the street? A lot of times a good race compound has really low µ (coefficient of friction) until they get good & hot.
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Interior/Exterior Cleaning calipers before painting
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