We put together a great package for the brand new Cayman GT4

Brembo TypeIII 2-piece rotors with the RE10 compound front and rear will give the Cayman some serious performance.

This kit is a true racing set up with good all round capabilities. Paired with the Brembo HTC fluid this will improve feel, life, modulation and performance.

 

Interesting. 2 different slotted rotors. Why? Have they been field tested on a GT4 in that configuration?

 

These pictures are actually of a 911 GT3. They just serve the purpose of illustrating the Rotor.
However we found that with this configuration ( Type III in the front and Type V in the rear ) the car handles much better as this balances the Car nicely. The Type III is a Sprint disc and the V a endurance disc.
We run this setup on race-cars like the 997 GT3R as well.
That being said we would recommend either the III or the V on the Cayman as the balance is difference.

 

More details please. What's the installation like? Prices for rotors, pads, etc?

 

Discs:

$1895 per axle for the discs. Front discs can be Type III (Higher initial response) or Type V (Lower disc wear for maximum life from the parts). Rear discs are all Type III.

Pads:

RE10 Endurance pads for race / track use and those are $649 front and $549 rear. TS20 for street use (low dust / noise and good overall performance) are $495 front and $395 rear.

The Brembo / Race Technologies products are always a bit pricier up front, but is a long term cost savings if spec'd and used correctly.

They are available now as well.

 

So with the GT3 you run only Type III in the front and only Type V in the rear, but for the GT4 you're saying either Type III or V in the front but only Type III in the rear? Why is that? If anything I'd have expected the Type III rotor with its higher initial response to be more appropriate in the rear of a GT3 than a GT4 given that the former has more weight in the rear. And given the GT4's chassis balance, if running Type III on both axles is allowed, why wouldn't running Type V on both axles also work?

Additionally, does the change in balance between the different rotor types refer to weight, brake bias, both, or something else entirely? How significant would this balance difference be between Type III vs Type V up front, or is that decision to be made purely based on whether one prefers to increase initial bite or longevity?

 

Appreciate any vendor providing product to the community but I too would like to hear more about how these improve performance and how they were tested.
There have been only a few "gripes" noted in professional and owner reviews about the GT4 and I don't think braking performance, even cars "only" equipped with the standard big reds, has never been a gripe. At least as far as I recall.

 

I think the main selling point here is the ability to replace just the friction rings rather than the entire rotor assembly as the OEM parts require, plus having slotted rotors might increase longevity over the drilled rotors since they are generally less prone to cracking.

 

I speak mainly from our own experience based on field testing since I am helping engineer different cars for various race programs here (in the US) as well as GT3 and Cayman efforts in Australia and Germany. We try all the different disc combinations on the various cars and based on the data and driver feedback, decide what to offer based on real experience in sprint and enduro races around the world.

So regarding the different slot options, we offer the different options mainly on preference to longevity or bite characteristics as to what we think offers the most benefits to our clients.

Each driver and car is technically different so everything needs to be put in perspective. So instead of focusing on the data, we try to find what our customers want out of their cars and help them get those results with the various products we test and use.

We have the ability to work closely with all our suppliers to get technical data and feedback on their products. This goes with the Brembo products as well.

 

991 GT3 we can run Type III front & rear which is the baseline package from Brembo.
- 991 GT3 we have also found the Type V endurance front disc helps get more life out of the front discs (always the first to be worn out in general). The Type slot type is the Brembo endurance slot type.

- 981 GT4 we can run Type III front & rear which is the baseline Brembo Racing package again.
- We can also run the Type V in the front of the GT4 for greater disc life.

Since the 991 GT3 is biased towards the rear anyway, it doesn't affect the brake balance of the chassis under braking.

Also consider that most cayman race teams run drilled discs in the rear and they have the highest initial bite of all available brake discs anyway due to the disc design. Most people just upgrade the front discs and that just helps get more time out of the front discs.

The difference between the slot types mainly affects bite and pad / disc wear. So for better life on the racetrack, we run the Type V in the front same as we do on our racecars.

Since the front axle in general does the highest amount of brake "work", we feel that the Type V will be an improvement in disc and pad longevity if that is a concern (heavy track use). Its' nice to have the option.

 

And what is the replacement cost for the rotors as well as the required hardware?

 

Disc rings are $512 each regardless of the slot type.
Hardware pack is $90 each.

Definitely more upfront cost with Brembo but also longer term cost savings as well.

 

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