Destroying Brake Pads

[motorhole]

E-bmw said:

Contrary to many opinions the 'Ring is NOT hard on brakes so you won't get any more heat into pads than on a spirited Sunday drive.

There are VERY few big braking manoeuvres and lots of straight in between.

If you want to get proper heat into pads and see the consequences try going to Cadwell or Blyton & giving it some beans, there are 4 + hard braking areas within 2 miles & not the longest of straights in between.

Excuse for gratuitous video postage...here's some laps from Blyton on Friday. The speed differentials from vmax to corner speed occuring multiple times in a short lap do show how hard it is on brakes, as well as the G. Although the G also shows I need to be more consistent with my braking!

https://www.youtube.com/watch?v=ixv5x_cNR2k

Osmoliver - I'm sure I will have some footage somewhere of your brakes smoking like a good 'un. I'll see what I can find.

[Burnzyb]

I’m guessing “brown stuff” was quite apt then?

I ran yellows on the TT as said above and the TT is a lardy old machine at around 1500kg’s too, I had fitted the V6 TT brake set up though to cope with the extra heat.

They did do what they said they would which is spirited driving and occasional track use.

[CedricN]

1 hour or 1 season, the amount of pad life difference you get from a bad or good pad is so massive that most of the new guys cant believe it, they think they need 8 piston calipers.

The ring is a breeze on tyres and brakes compared to the small tracks like the ones we have here in sweden, very little time to cool down between the corners.

[motorhole]

motorhole said:

Osmoliver - I'm sure I will have some footage somewhere of your brakes smoking like a good 'un. I'll see what I can find.

Found it: https://youtu.be/hJnyE0wuCVQ

[Osmoliver]

nickfrog said:

Try and brake hard but for as short a time as possible rather then let the pads drag unnecessarily. Not always easy when you trail brake of course but some people don't release quickly enough.
This may not solve anything of course until you fit pads that can cope.
General braking tips can be found on Driver61 on YT.
Working on your braking trace is particularly useful.

Thanks for the braking tips, I tend to try and get my braking done in a straight line before turning in rather than trail braking.

Watched a couple of videos from Driver61, really interesting channel!

Zoobeef said:

I love Blyton
https://youtu.be/Fj4dSkxdjHY
Reasonably hard on brakes though a theres not much time between corners. Most has been said already but get some decent track focused pads, I've never had an issue with Carbon Lorraine RC6, even racing up to an hour and I use standard pagid discs (in a VX220).

Sweet lap, love the noise of the supercharger too!

Burnzyb said:

My mate does a lot of track days at donno as he lives 20 minutes away the bugger, and he did say that running ducts to the front brakes made a massive difference on track, and it was out lasting more serious brake kits that didn’t have extra cooling.

I live about half an hour from Donington and shamefully have never been on track there, I need to change that. I've done loads of Autosolo events though.

CedricN said:

1 hour or 1 season, the amount of pad life difference you get from a bad or good pad is so massive that most of the new guys cant believe it, they think they need 8 piston calipers.

The ring is a breeze on tyres and brakes compared to the small tracks like the ones we have here in sweden, very little time to cool down between the corners.

It's taken me a good few years of motorsport to get brake pads to fail. I didn't believe it until it happened to me twice, so I don't blame the new guys. My eyes are well and truly open now though and will be upgrading pronto.

motorhole said:

Found it: https://youtu.be/hJnyE0wuCVQ

They really were smoking! Looks like I was braking a little too much though, could have probably carried a little more speed into the wiggler.

[rjnewman]

I wouldn’t rule out the pads binding in the callipers when hot.

Had this issue with Some track focused pads which lasted half a track day, after that I would file the paint off the sides of the brake pad backing plate, gave an extra bit of space for expansion and never had the problem again

[Cupra Black]

Munter said:

I'd give carbotech UK a ring and see what they have in an XP8.

I seem to destroy lesser pads...these last.

I have purchased some of these for the Golf, I havent tried them yet but I know they will be miles better than the DS2500 I am using now

[Nickjd]

227bhp said:

There is only The Wiggler at Blyton where you can top 100, if you don't want to cook your pads then fit bigger ones along with matching discs.

I would have said the you should be coming in to Ushers the fastest and require the biggest stop.

[Kev_Mk3]

E-bmw said:

Contrary to many opinions the 'Ring is NOT hard on brakes so you won't get any more heat into pads than on a spirited Sunday drive.

There are VERY few big braking manoeuvres and lots of straight in between.

If you want to get proper heat into pads and see the consequences try going to Cadwell or Blyton & giving it some beans, there are 4 + hard braking areas within 2 miles & not the longest of straights in between.

Totally agree. The GP track how ever is harsh on brakes.

[E-bmw]

Nickjd said:

227bhp said:

There is only The Wiggler at Blyton where you can top 100, if you don't want to cook your pads then fit bigger ones along with matching discs.

I would have said the you should be coming in to Ushers the fastest and require the biggest stop.

Bishops, The Wiggler & Ushers can all be braking from getting on for 100 or just over in the right car.

[motorhole]

E-bmw said:

Bishops, The Wiggler & Ushers can all be braking from getting on for 100 or just over in the right car.

Indeed, up to 107 / 95 / 97 respectively according to my GPS data. Not like you have a chance to glance at the speedo when you're hammering into these bends and it over reads anyway!

[UTH]

Cupra Black said:

Munter said:

I'd give carbotech UK a ring and see what they have in an XP8.

I seem to destroy lesser pads...these last.

I have purchased some of these for the Golf, I havent tried them yet but I know they will be miles better than the DS2500 I am using now

These are awesome in my evo 6, used them for years

[Robmarriott]

I used several different types of pad in my Clio, which was used as a race car as well as a track car. 1065kg with driver so about the same as an MX5 but 50bhp up.

DS2500 after 2 track days, one at Cadwell, one at Bedford



Obviously I replaced them... Pagid RS14 next, which, after each race, had to be removed from the car and the surface dressed to be deglazed. No idea why but no matter how you treated them, if you were gentle or got them super hot, they just glazed over.

So they went and the final set were from Performance Friction and were perfect, nice bite, no fade and loved getting hot without any trouble.

[227bhp]

E-bmw said:

Nickjd said:

227bhp said:

There is only The Wiggler at Blyton where you can top 100, if you don't want to cook your pads then fit bigger ones along with matching discs.

I would have said the you should be coming in to Ushers the fastest and require the biggest stop.

Bishops, The Wiggler & Ushers can all be braking from getting on for 100 or just over in the right car.

I don't know how looking at this:



You've got a wide open curve exiting onto a long straight.

But agreeably it's car dependent, in between Lancaster and The Wriggler the straight will suit a heavy, but powerful car (which is like a fish out of water at Blyton anyhow).

More practice needed

[motorhole]

227bhp said:

I don't know how looking at this:



You've got a wide open curve exiting onto a long straight.

But agreeably it's car dependent, in between Lancaster and The Wriggler the straight will suit a heavy, but powerful car (which is like a fish out of water at Blyton anyhow).

More practice needed

Because if you're flat, or close to it, through Port Froit you're going at a fair lick before Ushers. My favourite bit of the track that; trying to get onto the left of the circuit before turning into ushers, whilst on the stoppers in a car that's still loaded up on one side

[Zarco]

motorhole said:

motorhole said:

Osmoliver - I'm sure I will have some footage somewhere of your brakes smoking like a good 'un. I'll see what I can find.

Found it: https://youtu.be/hJnyE0wuCVQ

That is mental. Must have been absolutely stinking in the car surely?

[E-bmw]

motorhole said:

227bhp said:

I don't know how looking at this:



You've got a wide open curve exiting onto a long straight.

But agreeably it's car dependent, in between Lancaster and The Wriggler the straight will suit a heavy, but powerful car (which is like a fish out of water at Blyton anyhow).

More practice needed

Because if you're flat, or close to it, through Port Froit you're going at a fair lick before Ushers. My favourite bit of the track that; trying to get onto the left of the circuit before turning into ushers, whilst on the stoppers in a car that's still loaded up on one side

^^^^ Wot 'e said.

Stay right/apex late at Bunga-Bunga, early on the power flat through Port Froid (keeping a little left of where you think you should be for best grip) & easily close to 100 (no time to look to confirm) before HEAVY on the brakes for the right down to the entry/exit.

Epic part of the circuit if you get it right.

[Zoobeef]

I'm over 100 at all those corners. Would need to look at the data to see exactly but trying to see the speedo here you can see.
Even with a passenger and a slow entry onto the back straight.
https://youtu.be/Fj4dSkxdjHY

[motorhole]

Zoobeef said:

I'm over 100 at all those corners. Would need to look at the data to see exactly but trying to see the speedo here you can see.
Even with a passenger and a slow entry onto the back straight.
https://youtu.be/Fj4dSkxdjHY

Awesome acceleration from that supercharged VX!! Great pace too. From the tyre chirp it sounds like it's lively enough to keep you on your toes!

Data is dead handy. Even if I did have time to check the speedo, it overreads by about 8% so would have me at comfortably over 100 at all those points too. Data should be right.

[Zoobeef]

motorhole said:

Zoobeef said:

I'm over 100 at all those corners. Would need to look at the data to see exactly but trying to see the speedo here you can see.
Even with a passenger and a slow entry onto the back straight.
https://youtu.be/Fj4dSkxdjHY

Awesome acceleration from that supercharged VX!! Great pace too. From the tyre chirp it sounds like it's lively enough to keep you on your toes!

Data is dead handy. Even if I did have time to check the speedo, it overreads by about 8% so would have me at comfortably over 100 at all those points too. Data should be right.

Had a look at the data and for that lap I touched just over 109 before braking down to 43 in the wiggler. 99 down to 58 for bishops.
96 through Port froid hitting 106 before ushers down to 53mph.

Although on one of the other not quite as fast laps i was 1mph faster on each of those straights.