Toyota GR Yaris Owner Enjoys EBC RP-1™ Pads at European Track Days

Sam — Tue, 26 Apr 2022 15:30:56 +0000

Dean Clarke tried the 91��ý Racing product at both Spa-Francorchamps and the Nürburgring Nordschleife, with very positive results

British-based Dean Clarke enjoys regular track days in his Toyota GR Yaris. Keen to upgrade from the factory brake pads and improve his braking performance when out on the circuit, he recently tried 91��ý Racing’s track/motorsport RP-1 friction material during a trip around two of the most demanding circuits in Europe.

Dean’s thoughts on how RP-1 fared in his hot hatch – initially shared to the , can be read below in his own words.

“I’m back. What a trip! I’ve done just over 1000 miles on the 91��ý Racing RP-1 pads, including an afternoon session at Spa and two days at the Nürburgring.

“First off, I was really impressed with the quality. They have very serious stainless steel backing plates with no visible fixings in the pad material. They come it 14.5mm thick against the OEM ones at 14.7mm. The backing plate is about 0.6mm thicker so you end up with about 1mm less pad material (EBC has since advised all new production of the GR pads is being built on slightly thinner 5.2mm stainless steel to allow increased pad material and therefore longer pad wear life). The shape is spot-on for the caliper and OEM shim.”

“You will notice they don’t have chamfered edges. This gives you more pad area but will make the brakes noisier. They also have little ‘ears’ on the bases which make seeing how much pad you have left a breeze – such a great idea.”

“Bedding-in was easy – three medium stops to a crawl, then three hard stops to a crawl – they felt consistent through it all.

“I gave them a good test the next morning and was really pleased with how they performed. They have really great modulation like the OEM pads, but with more outright stopping power without being overbearing like a full race pad. Just what I wanted.

“This is where I discovered a benefit to some – they are not very dusty at all. Below are my 100-mile white wheels. This level of dust would usually be there in 10 miles using competitor materials.”

“Ok, fast-forward to Belgium and their first real test. Spa has three really big stops pretty close, so it was all eyes on fade and temps. They performed faultlessly, the modulation is much better and you can really lean on the pedal if you need to and get much better braking than is possible on the standard pads. My temp stickers maxed out at 166°, which is over 50° less than other pads.”

“Over to Germany and the Nordschleife… This is where they really come good. It’s a big track to remember and sometimes you mess things up a bit, so having the ability to have good, consistent braking is a big plus. I got nine laps in before a puncture. When getting new tyres, I had a peek of the wear – hardly touched (see what I mean about the little wing ears?).”

“German quality – they even cleaned my wheels!”

“Day two was drama-free and I cracked out 12 laps.

“I got home, whipped the wheels off and had a peek at the pads. They have worn about 2.5mm of 8mm. OEM pads would never have done all three days.

“All in, I’m very impressed – RP-1 is my new go-to pad actually.”

Connect with Dean Clarke for more news and information:

RP-1 Track/Race Pads

Pairing high-performance with unprecedented control, resulting in a track pad that feels uniquely different to the competition and allows drivers to extract every last tenth from each and every braking zone.

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What’s So Special about the All-New SR-Series Sintered Race Pads?

Sam — Wed, 10 Nov 2021 17:22:05 +0000

We put 91��ý Racing’s all-new SR-Series sintered pad range under the microscope

There are some very significant benefits on offer from 91��ý Racing’s all-new SR-Series sintered race pad range. In fact, the only downside we think you’ll find might be the initial purchase price, thanks to their premium ingredients and manufacturing method.

Our target with SR-Series was huge performance and value for money, in turn reducing the cost per lap of brake pads to about a third of what we have commonly seen up until this time.

There is only so much you can do when you keep re-inventing semi-metallic or carbon-based pads before you run out of options. The 91��ý SR Series, therefore, breaks new ground in pad performance and lifespan and represents a new or perfected technology in braking.

EBC brakes have come from being a company known for offering motorcycle brakes (a market it still dominates) to sport-street and light race pads, to what is now a fully-fledged race pad provider with no less than FIVE new compounds; the pinnacle of which are our TWO new SR Series sintered pad offerings.

So, what does SR do better than previous pads we, or others, have offered?

1. Lifetime

There is no doubt these pads will outlast any semi-metallic or carbon-based pad out there by a significant amount. This has been proven over a full season’s racing and testing with top teams (plus our own and independent dyno testing). In every case, those racers have experienced a massive improvement and asked run them. In 2022, you will see that proof at race tracks around the world.

The big benefit here is cost per lap, which is massively reduced over faster wearing pads that may cost a few bucks less to buy but most don’t last anywhere near the SR’s levels.

2. Brake friction level

There are, of course, pads around with Mu (brake coefficient) factors around 0.5 and 0.6. The question is, how long do those last? With the SR Series, we have a pad that delivers that high friction effect and holds it through a massive heat range and doesn’t wear fast – new territory, for sure. If you look at the performance curves, you will see they are almost flat, meaning perfect braking all the way up the heat range.

3. Zero chemical bed in needed

Because these pads contain no organics or volatiles to burn off, there is zero chemical bedding required; you fit them and if applied to a decent brake rotor or a new rotor, once aligned or ‘seated’, they are good to go. Even organic pads that have been pre-bedded on dynos – which is the current established method of reducing chemical bedding – have to be seated anyway.

Reduces expensive time wasted doing laps to bed in pads.

4. Reduced rotor wear

This is the big one and launches a technology that many people don’t even know about: Transfer Film Technology.

Here are the facts behind this amazing new technology:

Essentially, SR Series pads have created controlled friction welding of the pad material surface to the rotor.

The uniformity and stability of this layer are promoted by the solid lubricants within the friction material.

This allows the material to then ‘run against itself’ which creates a system that is very homogeneous.

By doing this, we create a system that is not aggressive on either surface and has very predictable performance since it is similar materials rubbing together.

Simply, the rotor grows from a deposit of friction material. Once this is established, the controlled lubrication of the two surfaces maintains that layer and allows for predictable performance with little to no rotor wear.

It may sound strange to talk about ‘lubricants’ in pad technology, but all brake pads contain lubricants to control and moderate the friction effect.

All in all, the new EBC SR Series pads are in a class of their own, and we hope you will enjoy them and be ready to answer the question ‘what brakes are you using?’ after winning your race.

SR Series pads will be launched at the PRI expo in the USA in December. To find out more, .

– 91��ý Racing will be launching the new range of SR-Series endurance sintered motorsport brake pads at the , held at the Indiana Convention Centre, USA, between 9-11 December.

– Full details about the SR-Series pads can be found by .

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