How to STOP Brakes OVERHEATING - BMW F80 M3

[@thecarsavant]

Been waiting 2 months for your next F80 update! Keep em coming!!

[@SuspensionSecrets]

Will do! We had a big pause over winter as the weather has been too bad to film in 👍

[@lukepugh76]

I second that

[@dinosoarskill17]

That duct addition looks so good.

[@SuspensionSecrets]

Thanks! We agree, it adds much more aggression to the front end as well as being functional

[@dinosoarskill17]

@@SuspensionSecrets best kind of mod, isn’t it?! lol Do you guys have scans of the front bumper so i could create a stencil to replicate?

[@SuspensionSecrets]

@@dinosoarskill17 we don’t unfortunately. We used a body shop to fit our ducts as they painstakingly smoothed them in to look as oem as possible 👍

[@dinosoarskill17]

@@SuspensionSecrets Before you guys even mentioned it in the video, my first thought was, damn the quality (of the duct cutout) looks great lol. They did a great job.. thanks!

[@SuspensionSecrets]

@@dinosoarskill17 they really did! Thanks 👍

[@mattgallagher4232]

Keep the f80 content coming! Loving it

[@SuspensionSecrets]

We definitely will do! 🙌

[@iansneddon74]

I've found this series to be very informative indeed. I now know what my F82 needs. Hopefully you'll have the next installment up soon.

[@UltraM140i]

Informative video, please do an m140i video

[@kern417]

I know plenty of people that just swap track pads and fluid and have great luck. Weird that you're having these sorts of overheating issues with factory brembos.

[@SuspensionSecrets]

We had some people say the same too 👍 we do like to press that pedal hard and late out on track though. And we have spoken equally with a lot of owners who have had the exact same issues as us out on circuit and have therefore moved across to the AP racing braking packages

[@Nishaan24]

Depends on people’s driving style also

[@DaleDoherty-cz9xm]

Have you tried EBC RPX pads? I've heard the pagids still deposit giving the warped feel. I did a day on a stock f80 comp and swapped the pads out for the day and had no fade, a bit noisy and left a lot of metal on the wheels but worked really well, I swapped back to stock pads on the road and no warpage. Suppose it depends how hard you drive but I was really impressed.

[@SuspensionSecrets]

We did and we tried the endless too but all pads ultimately warped the discs. The issue was the size of the pads with the small calipers. As soon as we moved to larger surface area calipers and pads the heat dissipated better through the discs and stopped the warping. We span the discs on the lathe each time too to ensure that it was definitely the disc that had warped and not pad deposit 👍

[@willemb8689]

Apex uses the stock calipers for their Nurburgring track M4… And I think the (heavy) 666m wheels are bad for air flow and for brake cooling.

[@SuspensionSecrets]

Yes the Nurburgring is actually kinder on brakes than most race circuits as there are longer periods of time before pressing the brakes heavily. On circuits the time between heavy braking sessions are much shorter, leading to a much sharper temp rise 👍

[@jonclark25]

100% on choosing the centre of the hub over the disc face for cooling. But.... On applications where it is very difficult to have this kind of cooling like a FWD car I have found having some cooling even to the disc face is better than nothing. It is a worst case scenario for sure but it can work just about if required.

[@SuspensionSecrets]

Definitely any cooling is better than none for sure 👍 for FWD we have found that ducting air towards the braking assembly instead of all the way up to it is a nice option as it blows air around the assembly which keeps the temperature differentiation quite even still 👍

[@Boostaddicts_YT]

The issue with the 2NH kit is not fitting behind 18’s like a lot run 😢

[@SuspensionSecrets]

That is true but not the be all and end all. We will have a video coming soon on wheel sizes and the decision making behind choosing a diameter. A lot of people move to 18’s for tyre choices but that doesn’t necessarily mean it’s the best route to take 👍 bigger wheels do allow bigger brakes and larger circumference tyres that can manage surface temperatures and pressure rises more efficiently too 👍

[@ozenakkoyun3539]

How is clock on idrive full screen

[@SuspensionSecrets]

This happens in sleep mode which we switch to on track

[@ozenakkoyun3539]

@ cant find anything on the internet about sleep mode

[@detaildevil7208]

Hey Matt, do you have the caliper part numbers as consideing this upgrade for my F82

[@davebartlett4216]

Will have to get these on the M2 Matt 😊

[@SuspensionSecrets]

Well worth it 🙌

[@pavlospilakoutas]

Wouldn't drilled disks help with the dissipation of gases and heat while braking as well?

[@SuspensionSecrets]

The stock discs are drilled and do help but drilled discs are much more susceptible to cracking with track use and abuse.

[@DanR-ih5is]

Great video, thanks guys!

[@SuspensionSecrets]

Glad you enjoyed it

[@m3clubracer]

Why didn't you show how you routed the hose behind the bumper?

[@SuspensionSecrets]

Thanks for the comment. Routing the pipe work behind the bumper requires the bumper to be removed as it is quite tight getting it through the crash bars and coolers so for the purposes of this update video we didn’t remove the front end to show this. The route is quite obvious once removed though 👍

[@mickmac9825]

Are you guys running with MDM mode on? Turning the traction fully off makes a huge difference. Even with traction just set to MDM, the brakes are being activated a lot and this causes them to overheat.

[@SuspensionSecrets]

We were initially running with MDM on but have had it fully off for a while now on track. It did help the length of time before warping but still warped on the blue caliper setup

[@m3clubracer]

It will overheat the rear, not the front.

[@TheEddysGarage]

Porsche GT3 brake ducts are also a cheap (under $10USD a side) cooling option. I did a video on fitting them to my M2

[@triz1hunna151]

If you get another m140i in the shop I’d like to see that on KZbin or even provide some packages like you do the Porsche and bmw m3/4

[@SuspensionSecrets]

We are planning on doing a M140i video soon as we frequently have them in the workshop. Happy to build some packages up too 👍

[@triz1hunna151]

@@SuspensionSecrets yes that be great as much easier to buy a package like I said you do on the website for m3/4 thank you

[@chrisdgraham]

Would you share a link for the M Performance brake kit you fitted to the M3 please?

[@andrxito]

any backing plates for the rear?

[@SuspensionSecrets]

Not yet as all of our issues were up front. That said the rears were getting noticeably hotter than the fronts when coming into the pits so we will be working on a rear cooling package soon

[@andrxito]

@@SuspensionSecrets yeah I've had the same experience, but I can't justify carbon backing plates where they can't be seen, aluminium is def. the way to go

[@itshappening100]

Good stuff

[@Dmarshmellow]

Great video, love the content on the F80 and BMW platform. Do you have any recommendations for pads for G-series M cars that see mostly street duty with the occasional track day? Thx.

[@SuspensionSecrets]

Thanks very much. The endless pads are quite good for road and track use as they wear nicely and have less squeal when cold. For track we like the Pagid RL29 but they do squeal when cold quite a lot.

[@davetreanor5303]

I have the 2NH kit on my F82. I don’t track it though. Just looking for high speed stopping power on autobahn! How did you find the slotted discs over the oem cross drilled? They look like Girodiscs

[@SuspensionSecrets]

Yes we are on the girodsics now. There wasn’t a huge notable difference between the OEM and the Girodics with the cooling package fitted

[@davetreanor5303]

@@SuspensionSecretsthanks for the feedback. My only real gripe with oem discs is the droning sound when braking from anything over 270km/h on autobahn. Discs end up having blue colour smear on them as they are probably heating up too quickly. They clean up after some daily driving. I’m looking to have confidence in them at high speed. Also may I ask did you bleed the abs modules with ISTa? I got steel lines and Castrol SRF when swapped to 2NH kit but pedal is still spongy.