M2 Competition 2NH Brakes On Track
Discussion
Hi,
A few years ago I did a couple of trackdays in a family members M2, great car, terrible brakes. In fact the colour of the calipers changed from blue to very dark blue!
I see the M2 Competition has the option for bigger brakes (2NH?) does anyone from here have experience of this setup on track? Is it any better than the standard blue caliper offering?
If BMW have resolved the on track brake performance I can seriously consider a M2 Competition to replace my Cayman.
Cheers,
A few years ago I did a couple of trackdays in a family members M2, great car, terrible brakes. In fact the colour of the calipers changed from blue to very dark blue!
I see the M2 Competition has the option for bigger brakes (2NH?) does anyone from here have experience of this setup on track? Is it any better than the standard blue caliper offering?
If BMW have resolved the on track brake performance I can seriously consider a M2 Competition to replace my Cayman.
Cheers,
I have the big brake option. I've yet to to do a track day.
However, I doubt very much that they would stand up so well. My intention, as always with track driving, is to swap the fluid for Castrol SRF & use Pagid RS29 pads all round.
That is my recommendation; job done and you won't look back.
Kyri
However, I doubt very much that they would stand up so well. My intention, as always with track driving, is to swap the fluid for Castrol SRF & use Pagid RS29 pads all round.
That is my recommendation; job done and you won't look back.
Kyri
Road pads (and to a lesser extent fluid), will fry on a track day - particularly with the size and number of pistons on the standard M2 brakes.
Smaller brakes will struggle earlier, leading to soft pedals long before they fry. Plus, they aren’t blue to start with.
On a previous car with single piston callipers that were nominally silver I have caused my discs to go blue.The pads had plenty of meat left, but the pedal felt pretty wooden afterwards...
Smaller brakes will struggle earlier, leading to soft pedals long before they fry. Plus, they aren’t blue to start with.
On a previous car with single piston callipers that were nominally silver I have caused my discs to go blue.The pads had plenty of meat left, but the pedal felt pretty wooden afterwards...
The original M2 brake hardware is fine for track days. You just need to change the pad material and fluid. I may change my M2 front callipers and discs because a floating set up will ultimately be cheaper in the long run. Currently I’m undecided about my level of track activity in the M2 so haven’t made up my mind which way to go. If you are only planning a few track days a year. A pad and fluid change will be fine
saveloy said:
I have the big brake option. I've yet to to do a track day.
However, I doubt very much that they would stand up so well. My intention, as always with track driving, is to swap the fluid for Castrol SRF & use Pagid RS29 pads all round.
That is my recommendation; job done and you won't look back.
Kyri
Thread resurrection.However, I doubt very much that they would stand up so well. My intention, as always with track driving, is to swap the fluid for Castrol SRF & use Pagid RS29 pads all round.
That is my recommendation; job done and you won't look back.
Kyri
Buying an M2C shortly and was holding out for 2NH pack. However they are rare.
Having read this I think I’ll just go fluid and RS29 for 3-4 track days per year I’ll do. Are they Road useable pads or do they squeal like hell?
dufflecoat said:
Thread resurrection.
Buying an M2C shortly and was holding out for 2NH pack. However they are rare.
Having read this I think I’ll just go fluid and RS29 for 3-4 track days per year I’ll do. Are they Road useable pads or do they squeal like hell?
Squeal like hell I'm afraid.Buying an M2C shortly and was holding out for 2NH pack. However they are rare.
Having read this I think I’ll just go fluid and RS29 for 3-4 track days per year I’ll do. Are they Road useable pads or do they squeal like hell?
Very good for 3-4 track days a year mind.
dufflecoat said:
Thread resurrection.
Buying an M2C shortly and was holding out for 2NH pack. However they are rare.
Interesting, would rather fit a BBK of my own choosing (AP/Schirmer offer a nice kit) than whatever BMW budgeted for - plus whatever was on a car from new is going to have been subjected to however many heat cycles/miles through salt and varying deteriorative conditions. Buying an M2C shortly and was holding out for 2NH pack. However they are rare.
dufflecoat said:
Thread resurrection.
Buying an M2C shortly and was holding out for 2NH pack. However they are rare.
Having read this I think I’ll just go fluid and RS29 for 3-4 track days per year I’ll do. Are they Road useable pads or do they squeal like hell?
I can't comment on the RS29 as different people have had different experiences for squeal.Buying an M2C shortly and was holding out for 2NH pack. However they are rare.
Having read this I think I’ll just go fluid and RS29 for 3-4 track days per year I’ll do. Are they Road useable pads or do they squeal like hell?
I can however comment on DS1. 11 which are a great pad for track/road use on the blue calipers. IME very little squeal on the road, basically just a bit of it in the last few rotations slowing down for a red light. You can actually drive around that by braking a little harder earlier and coasting more.
I started this thread and I am now in a position to answer it 
Last year a bought an M2C with 2NH brake option and so far I have done two trackdays to date; Silverstone GP & Donington Park GP. On both trackdays the brakes were a marked improvement over the standard blue caliper brakes I drove on an OG M2. I have not driven an OG M2 with upgraded pads, only upgraded fluid (RBF 660).
The main improvement was pedal feel and extension when hot. The pedal remained firm and the decel rate was very constant, this gave much more confidence than the standard blue brakes. After 8 laps of Donny the brakes did start to make a loud grumbling noise but by this point the tyres had overheated (Michelin Pilot Supersports) so I came in. I don't doubt this was the limit of the brakes also. I will upgrade to DS1.11 or Endless ME22 pads when I fit Cup2 tyres.
It's worth noting that an M2C does have better brake cooling than the OG so I would expect the blue calipers to perform better on a Comp than an OG.
The 2NH brakes have a much larger pad than the blue calipers which helps with wear and thermal capacity. As does the 400mm disc. I concede the caliper is very heavy but with its solid back it is stiffer than an open back design with a R clipped pin.
I completely understand and acknowledge that a proper AP/Team Schirmer/Alcon set up would be much improved on track than the 2NH brakes. The reason I favour the 2NH set up is because my car is a road car that goes on track, not a track car that goes on road. In my experience the APs are not durable for sustained road mileage (grit, salt, grim etc) whereas the BMW parts are. My car is also still under warranty (I understand it is not warranted whilst on track). I also like how the 400mm 2NH disks fill the wheels
As a side note, the BMW M4/M4 GTS Carbon Ceramic discs and pads fit the 2NH calipers.......very tempting!
Last year a bought an M2C with 2NH brake option and so far I have done two trackdays to date; Silverstone GP & Donington Park GP. On both trackdays the brakes were a marked improvement over the standard blue caliper brakes I drove on an OG M2. I have not driven an OG M2 with upgraded pads, only upgraded fluid (RBF 660).
The main improvement was pedal feel and extension when hot. The pedal remained firm and the decel rate was very constant, this gave much more confidence than the standard blue brakes. After 8 laps of Donny the brakes did start to make a loud grumbling noise but by this point the tyres had overheated (Michelin Pilot Supersports) so I came in. I don't doubt this was the limit of the brakes also. I will upgrade to DS1.11 or Endless ME22 pads when I fit Cup2 tyres.
It's worth noting that an M2C does have better brake cooling than the OG so I would expect the blue calipers to perform better on a Comp than an OG.
The 2NH brakes have a much larger pad than the blue calipers which helps with wear and thermal capacity. As does the 400mm disc. I concede the caliper is very heavy but with its solid back it is stiffer than an open back design with a R clipped pin.
I completely understand and acknowledge that a proper AP/Team Schirmer/Alcon set up would be much improved on track than the 2NH brakes. The reason I favour the 2NH set up is because my car is a road car that goes on track, not a track car that goes on road. In my experience the APs are not durable for sustained road mileage (grit, salt, grim etc) whereas the BMW parts are. My car is also still under warranty (I understand it is not warranted whilst on track). I also like how the 400mm 2NH disks fill the wheels
As a side note, the BMW M4/M4 GTS Carbon Ceramic discs and pads fit the 2NH calipers.......very tempting!
nickfrog said:
^^^^ really interesting stuff, thanks - how does the M2C brake cooling differ from the OG's ?
The outer part of the lower centre grill has two intake that run to the wheel arches.Inlet:
Wheel arch
Part number here part '3'
https://www.realoem.com/bmw/enUS/showparts?id=2U73...
I don't remember these parts on the OG I drove.
FTW said:
I started this thread and I am now in a position to answer it
Last year a bought an M2C with 2NH brake option and so far I have done two trackdays to date; Silverstone GP & Donington Park GP. On both trackdays the brakes were a marked improvement over the standard blue caliper brakes I drove on an OG M2. I have not driven an OG M2 with upgraded pads, only upgraded fluid (RBF 660).
The main improvement was pedal feel and extension when hot. The pedal remained firm and the decel rate was very constant, this gave much more confidence than the standard blue brakes. After 8 laps of Donny the brakes did start to make a loud grumbling noise but by this point the tyres had overheated (Michelin Pilot Supersports) so I came in. I don't doubt this was the limit of the brakes also. I will upgrade to DS1.11 or Endless ME22 pads when I fit Cup2 tyres.
It's worth noting that an M2C does have better brake cooling than the OG so I would expect the blue calipers to perform better on a Comp than an OG.
The 2NH brakes have a much larger pad than the blue calipers which helps with wear and thermal capacity. As does the 400mm disc. I concede the caliper is very heavy but with its solid back it is stiffer than an open back design with a R clipped pin.
I completely understand and acknowledge that a proper AP/Team Schirmer/Alcon set up would be much improved on track than the 2NH brakes. The reason I favour the 2NH set up is because my car is a road car that goes on track, not a track car that goes on road. In my experience the APs are not durable for sustained road mileage (grit, salt, grim etc) whereas the BMW parts are. My car is also still under warranty (I understand it is not warranted whilst on track). I also like how the 400mm 2NH disks fill the wheels
As a side note, the BMW M4/M4 GTS Carbon Ceramic discs and pads fit the 2NH calipers.......very tempting!
Awesome, thank you. Last year a bought an M2C with 2NH brake option and so far I have done two trackdays to date; Silverstone GP & Donington Park GP. On both trackdays the brakes were a marked improvement over the standard blue caliper brakes I drove on an OG M2. I have not driven an OG M2 with upgraded pads, only upgraded fluid (RBF 660).
The main improvement was pedal feel and extension when hot. The pedal remained firm and the decel rate was very constant, this gave much more confidence than the standard blue brakes. After 8 laps of Donny the brakes did start to make a loud grumbling noise but by this point the tyres had overheated (Michelin Pilot Supersports) so I came in. I don't doubt this was the limit of the brakes also. I will upgrade to DS1.11 or Endless ME22 pads when I fit Cup2 tyres.
It's worth noting that an M2C does have better brake cooling than the OG so I would expect the blue calipers to perform better on a Comp than an OG.
The 2NH brakes have a much larger pad than the blue calipers which helps with wear and thermal capacity. As does the 400mm disc. I concede the caliper is very heavy but with its solid back it is stiffer than an open back design with a R clipped pin.
I completely understand and acknowledge that a proper AP/Team Schirmer/Alcon set up would be much improved on track than the 2NH brakes. The reason I favour the 2NH set up is because my car is a road car that goes on track, not a track car that goes on road. In my experience the APs are not durable for sustained road mileage (grit, salt, grim etc) whereas the BMW parts are. My car is also still under warranty (I understand it is not warranted whilst on track). I also like how the 400mm 2NH disks fill the wheels
As a side note, the BMW M4/M4 GTS Carbon Ceramic discs and pads fit the 2NH calipers.......very tempting!
A 2NH car has just appeared with my spec requirements. Talking to them tomorrow, will be going that route with uprated pads and fluid I think. More than enough for me!
Edited by dufflecoat on Thursday 27th January 20:28
I sourced a manual M2C last February and specifically wanted the 2NH brake option. I then changed the discs for fully floating Girodiscs (front and rear) and Pagid RSL29 pads all round. I put on the braided steel brake pipes from HEL Performance, added Castrol SRF and had the suspension set up by Suspension Secrets.
The car is fantastic as a track car. Gratuitous photos below!
The car is fantastic as a track car. Gratuitous photos below!
London GT3 said:
I sourced a manual M2C last February and specifically wanted the 2NH brake option. I then changed the discs for fully floating Girodiscs (front and rear) and Pagid RSL29 pads all round. I put on the braided steel brake pipes from HEL Performance, added Castrol SRF and had the suspension set up by Suspension Secrets.
The car is fantastic as a track car. Gratuitous photos below!
Lovely. I'll likely go with the same pads (there is a BMW M pad, which I suspect is a Pagid RS pad), along with Castrol SRF & some titanium shims between the pad & caliper.The car is fantastic as a track car. Gratuitous photos below!
Kyri
London GT3 said:
I sourced a manual M2C last February and specifically wanted the 2NH brake option. I then changed the discs for fully floating Girodiscs (front and rear) and Pagid RSL29 pads all round. I put on the braided steel brake pipes from HEL Performance, added Castrol SRF and had the suspension set up by Suspension Secrets.
The car is fantastic as a track car. Gratuitous photos below!
Lovely! I run giro discs on my Cayman R and really rate them. The car is fantastic as a track car. Gratuitous photos below!
Edited by FTW on Friday 28th January 21:35
Gassing Station | M Power | Top of Page | What's New | My Stuff