997.2 Carrera S - mild brake upgrade?
05-06-2011, 04:39 PM
#16
The first used 997 I test drove had horrible mushy brakes, and I asked the salesman "WTF? is this what the brakes are like?" and of course being a moron/liar salesman he was like "yeah the older models are mushy like that". Of course it's not true, the car just had old or low fluid.
05-06-2011, 05:10 PM
#17
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Sounds like you just need new fluid. You may have even boiled it at some point, though that's hard to do off the track.
The first used 997 I test drove had horrible mushy brakes, and I asked the salesman "WTF? is this what the brakes are like?" and of course being a moron/liar salesman he was like "yeah the older models are mushy like that". Of course it's not true, the car just had old or low fluid.
The first used 997 I test drove had horrible mushy brakes, and I asked the salesman "WTF? is this what the brakes are like?" and of course being a moron/liar salesman he was like "yeah the older models are mushy like that". Of course it's not true, the car just had old or low fluid.
It always amazes me how brake fluid is skipped in car maintenance, people change all sorts of other fluid regularly, this should come into regular intervals specially for sports cars!
05-06-2011, 06:48 PM
#18
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I would inspect current pads to determine remaining pad thickness. I would think heavy braking in mountain environments could be part of your issue. I would also consider flushing out the brake fluid. A quality DOT 4 would be recommended. The higher the "wet boiling temp" the better.
OEM pads will give you the best compromise (grip, dust, noise, feel etc) out there.. that's why the factory chose them
How many miles are on the car? How old is the brake fluid?
OEM pads will give you the best compromise (grip, dust, noise, feel etc) out there.. that's why the factory chose them
How many miles are on the car? How old is the brake fluid?
05-07-2011, 07:28 AM
#19
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Ross,
Brake fluid is hygroscopic, which means it absorbs water form the air, even in a closed system. Porsche recommends changing brake fluid every 2 years, more often with heavy use (i.e. repeated hard breaking).
Brake fluid is hygroscopic, which means it absorbs water form the air, even in a closed system. Porsche recommends changing brake fluid every 2 years, more often with heavy use (i.e. repeated hard breaking).
05-07-2011, 09:53 AM
#20
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+1, brake pad inspection and a brake fluid flush is step one. you don't track the car frequently so SS or bradded lines would provide no real be benefit. Chuck
05-07-2011, 12:25 PM
#21
Race Director
Fluid will not really change the feel on the brakes but something like Motul RBF 600 or 660 will help on the track due to it's higher boil temp.
Stock pads on the track are fine for your 1st few DE's or so...depends on the track and how quick you grasp performance driving at a DE.
When you start to get into threshold braking for the turns that require this technique you will fine that you can over heat the stock pads and you will need to move to a pad that can handle these temps.
There is not a pad out there that can do both perfectly well....street and track. You will have to swap pads out for your events.
Also think of race pads and r-comp tires as a complete package....you need both to really work well.
