Pccb or not pccb - Read this first
04-14-2017, 05:23 AM
#31
Three Wheelin'
04-14-2017, 07:03 AM
#32
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04-14-2017, 10:01 AM
#33
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So the difference in 3 discs' weight and their weight distribution distance from the rotating axis are the only two factors in the equation that affect the moment of inertia.
The conclusion is:
For the same diameter of rotor - The lighter the weight the lower in MOI.
For the same weight of rotor - The smaller diameter the lower in MOI.
A lower MOI (Moment of Inertia) setup means it has less resistance (quicker & easier) than the higher one to rotate around the same axle (to accelerate and decelerate).For the same weight of rotor - The smaller diameter the lower in MOI.
* Assume all 3 setup can adequately handle the brake duty in dissipating the heat.
09-16-2018, 06:03 PM
#34
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I have a Miami Blue Targa GTS on order and went with the steel ones but I did consider the PCCBs...still time to change the build and last night I decided to change to the PCCBs but today I changed my mind. I have read virtually every thread about them, here and elsewhere and I still cannot find anything to make me add them, today at least. And Red or Yellow calipers look good with Miami Blue. By the way, my dealer said they would powder coat my calipers in any color I want for $1400, parts & labor.
09-16-2018, 06:24 PM
#36
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I never said it would, but it does allow for a different color caliper. I think I will stick with what I have and get the wheels coated, barrels included, and rinse them off when the dust is noticeable. I can afford the cost of the PCCBs but in my case I do not see them benefiting me; however, I may wake up tomorrow and change my mind again.
09-16-2018, 06:50 PM
#37
09-16-2018, 07:31 PM
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My Targa GTS has Red calipers (as of today) but it is far from what anyone would call a stripper. And if I change my mind again and get the PCCBs the last reason I would do so is to show someone I spent a lot of money on brakes.
09-16-2018, 08:17 PM
#39
Full agreement with those that wish Porsche would allow buyers to spec caliper colour. Our PCCB calipers were powder coated red but the result is not quite as good as “factory”. The confusion on people’s faces is always amusing.
09-17-2018, 08:07 AM
#40
Why do we think the Turbo S and the GT2 come standard with PCCB if they are all about caliper color. By the way DHL (international competitor to UPS and FEDX) corporate colors are red and yellow. Guess they felt like they could live with that "hideous" color combination.
09-17-2018, 09:10 AM
#41
I think people who consider PCCB also should consider the inertia impact with tires/wheels as well. I suspect the impact tires/wheels have in the overall system is so great that smal savings from pccb is going to be secondary. Not only do tires/wheels weigh much more but more importantly they have far greater radius than small brake discs. Remember that moment of inertia exponentially increases with radius.
if my math without the use of a calculator is accurate, i believe the impact of similar savings with tires will yield somewhere over 10 times savings in inertia.
I am not saying pccb is not worth it but if you want to save rotational weight, i wouldnt spend a dime on PCCB until all dimes are spent for saving weight on tires and wheels and only then pay for pccb.
if my math without the use of a calculator is accurate, i believe the impact of similar savings with tires will yield somewhere over 10 times savings in inertia.
I am not saying pccb is not worth it but if you want to save rotational weight, i wouldnt spend a dime on PCCB until all dimes are spent for saving weight on tires and wheels and only then pay for pccb.
09-17-2018, 09:50 AM
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Very true. I have been riding bikes along with some racing and replacing wheels with lighter ones are usually one of the first things to do albeit many sport bikes these days are getting lighter and lighter wheels, but not too light since the risk of damage has to be taken into account for street driving due to the not so great condition of roads.
09-17-2018, 05:44 PM
#43
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My first set of PCCBs on a Porsche. My other 3 had the big red irons........
I am blown away by the super feel of the brakes and how the reduced weight assist in the handling of the car.............
However, being a clean freak with my cars........the benefit of no brake dust is beyond itself............it saves so much time in cleaning the wheels, the driveway, no need for chemical cleaners or brushes for cleaning the wheels, etc........It save at least 30 minutes of washing my wheels or more.............car looks clean all the time.................
As far as replacement, there are options now to reduce costs, etc..........since I am not a track rat.........3 times a year only................they should last a long time...........
I will never order a car without PDCCs again............
I am blown away by the super feel of the brakes and how the reduced weight assist in the handling of the car.............
However, being a clean freak with my cars........the benefit of no brake dust is beyond itself............it saves so much time in cleaning the wheels, the driveway, no need for chemical cleaners or brushes for cleaning the wheels, etc........It save at least 30 minutes of washing my wheels or more.............car looks clean all the time.................
As far as replacement, there are options now to reduce costs, etc..........since I am not a track rat.........3 times a year only................they should last a long time...........
I will never order a car without PDCCs again............
09-24-2018, 09:20 PM
#45
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Thread Starter
My first set of PCCBs on a Porsche. My other 3 had the big red irons........
I am blown away by the super feel of the brakes and how the reduced weight assist in the handling of the car.............
However, being a clean freak with my cars........the benefit of no brake dust is beyond itself............it saves so much time in cleaning the wheels, the driveway, no need for chemical cleaners or brushes for cleaning the wheels, etc........It save at least 30 minutes of washing my wheels or more.............car looks clean all the time.................
As far as replacement, there are options now to reduce costs, etc..........since I am not a track rat.........3 times a year only................they should last a long time...........
I will never order a car without PDCCs again............
I am blown away by the super feel of the brakes and how the reduced weight assist in the handling of the car.............
However, being a clean freak with my cars........the benefit of no brake dust is beyond itself............it saves so much time in cleaning the wheels, the driveway, no need for chemical cleaners or brushes for cleaning the wheels, etc........It save at least 30 minutes of washing my wheels or more.............car looks clean all the time.................
As far as replacement, there are options now to reduce costs, etc..........since I am not a track rat.........3 times a year only................they should last a long time...........
I will never order a car without PDCCs again............