Hi, i drive 06 cayenne v6, i have 22 inch wheels on it,
and the brake feels very week, since v6 has smaller front brakes.

If possible, i want to change my front rotors, pads, and calipers to a bigger size, CS, or CTTs. Does anyone know about this, or has done this?

thanks,

-dabal

 

i think if u want to get better performance and save some money then just get pads, rotors n better SS brake lines... that should give u some good improvement...

 

thanks for the reply,
canyou tell me more about ss brake lines?
im not sure what it is, and i would like to know,,

thanks,

-dabal

 

SS brake lines = stainless steel breaklines...

 

Brembo makes a full brake upgrade for the Cayenne.

Front and Rear Kits if you wanted to go that route.

More info on the Brembo Website or Race Technologies.

 

yeah but i'm just telling him he doesnt need to spent that much money if he just want a bit more bite...

 

With 22" and the V6 model brakes... Brembo is the way to go.

 

My guess is that he is looking for more than just improved bite.

The issue is that the 22" wheels & tires are going to be significantly heavier than the OEM wheels. The OEM brakes are no longer up to the task of slowing that much rotating mass, even at common speeds. The feeling that he is getting right now is that the car just feels like it doesn't want to stop the same way as it previously did. This feeling becomes exaggerated even more through multiple/repeated stops as the OEM sized rotors can not efficiently absorb and dissipate the additional heat created with the increased work loads.

Since the wheels of a car are both unsprung and rotational weight, every actual pound of weight added down there can be factored as 7 times that.
If a single wheel & tire weighs 20lbs more than stock (which is probably a modest estimate when going from the OEM 17's or 18's to 22"s) that is a total of 80lbs for all 4 wheels. Multiply that by 7 to get the increased rotational weight, and you have a situation where the car is trying to stop the equivalent to 560 additional pounds over the vehicles original gross weight.

While better brake lines, high performance pads, and good brake fluid can improve the braking feel of the OEM system it is simply not enough to restore the amount of braking performance he has lost with all of the added weight. The benefits of a BBK would be hugely beneficial at this point.

The Brembo system actually starts with a combination of larger 2pc. fully floating discs and a properly selected caliper to restore, and even improve upon, the amount of available brake torque in order to adequately handle the additional load of the 22" wheels & tires. The increased size of the brake rotor itself allows for much more heat capacity which ensures that this improvement will last through multiple stops and greatly reduces any chance of fade. The 2pc. discs also reduce a decent amount of unsprung and rotational weight to effectively lighten the work load at the same time. Stainless steel brake lines and high performance pads are also standard with the Gran Turismo brake kits.

Keep in mind that the Brembo system we are talking about is also an improvement beyond what comes standard on the Cayenne S and Cayenne Turbo. While those are great systems on their own, you will leap from the performance that these systems offer, and more than likely do so at a very similar cost to sourcing those parts through the Porsche dealership.

Gary C
Brembo / Race Technologies
888.Brembo.8 ext.118
www.Brembo.com
www.RaceTechnologies.com

 

Very good info Gary ... thanks.

 

yes, thanks all for the infos, its very helpful.