"TheOnelectronic" (theoneelectronic)
03/04/2016 at 17:08 • Filed to: None
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"TheOnelectronic" (theoneelectronic)
03/04/2016 at 17:08 • Filed to: None | 0
| 8 |
Bear with me a moment here, Oppo. When I’m driving in wet conditions in the BRZ, I frequently press the brake pedal and alarmingly little happens. Then, after maybe a second or with much more pedal pressure, the brakes begin to bite more and the car slows down.
Now, the evidence suggest something extremely obvious: The brakes are wet. The friction burns off the moisture after a bit of pressure and then the brakes operate normally. The thing about that is, I’ve never noticed this before. In my ten years of driving across many vehicles, I have never noticed any lack of braking in wet conditions. I know at least one of those cars would periodically squeeze the brakes just a little when it rained to keep them dry, but other, significantly less fancy cars that shouldn’t have had any shadow features the BRZ lacks did not exhibit this hesitance either.
Is this... normal? Why has it not been an issue before? As far as I can tell, none of my previous vehicles had anything special about the brakes that might have mitigated this problem, save for the case mentioned above. It could also be something specific to the compound on the BRZ, I suppose, or just its unique aerodynamics that suck more water onto the brakes.
To clarify, this doesn’t feel like air in the lines. There’s no spongeyness or lack of feel in the pedal. It’s just that the normal amount of brake pressure does not produce the normal amount of deceleration, and then it does. Am I wrong in my wet brakes hypothesis?
RamblinRover Luxury-Yacht
> TheOnelectronic
03/04/2016 at 17:16 |
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It could be that a better brake ducting arrangement than your previous cars (a) funnels water into your brakes, making them initially wetter, and (b) continues to keep the brakes cool, delaying the onset of dry pads with light amounts of pedal. Add a likely more porous pad compound, and it’s a perfect storm. So to speak.
crowmolly
> TheOnelectronic
03/04/2016 at 17:25 |
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Factory brake parts/pads?
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TheOnelectronic
> crowmolly
03/04/2016 at 17:42 |
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Yep. I’ve never had need to upgrade brakes on my cars.
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TheOnelectronic
> RamblinRover Luxury-Yacht
03/04/2016 at 17:43 |
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I wouldn’t think a BRZ would have exceptional brake ducting, but it’s definitely a likely factor.
JustJim
> TheOnelectronic
03/04/2016 at 17:50 |
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Is this a new car to you or a car you’ve had and it’s recently started doing this?
Never heard of wet brakes being an issue. My wife’s Golf R is overely anctios with ABS in snow, so It might just be the BRZ does wet.
Again if it’s new enough is there a warranty?
You may also want to check a BRZ specific forum if there is one. Other BRZ owners might have better insite than random OPPO experts.
red_
> TheOnelectronic
03/04/2016 at 18:12 |
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‘14 BRZ. Mine does something similar in heavy rain. I have the stock pads and stock wheels, for some reason the pads get soaked pretty quick leading no bite, slide, then brake. Haven’t been able to figure out why yet, but they dry out pretty quick.
My guess is that it has to do with the wheel design. When driving through a puddle it seems to suck in water
JawzX2, Boost Addict. 1.6t, 2.7tt, 4.2t
> TheOnelectronic
03/04/2016 at 18:14 |
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Almost the same things *sometimes* happens with the FieSTa. If I’ve driven through a deep puddle or there’s a lot of standing water on the road... I had wondered the same exact thing for the same exact reasons.
Scott
> TheOnelectronic
03/04/2016 at 18:26 |
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Typically higher performance brake pads have issues with cold braking. Odd to hear something like this on a car with OEM brake pads. Many race cars require that the brakes be pre-heated prior to use, so as you go down the straight you’ll have to apply a slight amount of brake pressure to warm everything up. That’s why it is advised you do NOT use race pads on a street car. One thought could be that generally speaking brake pads will ever so slightly drag the rotor. It may be that the water is getting between the rotor and the pad and preventing the slight friction, and allowing a film to build up. Others have mentioned the ducting, I could see a combination of cooling, and water directed to the rotor, or pads, and maybe even a bit of oil build up that often makes roads in dryer climates very slippery.