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Print in friendly format Send this term to a friend  RPO
Regular Production Order. These are the codes that GM uses to identify options.

For example, LT1 is the RPO for the engine used from 1992-1996.
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BillH Brakes
The Stig Moderator
Reno
22702 Posts
Member since:
2007/12/25 0:00



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My buddie with the Porsche 911 RS has a set of Movit Ceramic rotors/Calipers/Pand on his car.

"Explanation of MOV´IT-CER ceramic rotor:

Polyacronitrile fiber sheets are needled together to create a PANOX preform. The
future rotors are cut out of this preform. These "raw" discs are carbonized at >1500°C
to convert the Polyacronitrile fibers to carbon fibers. These carbonized rotors are then
densified during a 14 day chemical vapor infiltration process. The rotors are then
carbon-carbon. The rotors are then machined to the final geometry. Some faces are
machined over thickness to allow for future machining. Now high rate silicon
infiltration coverts the carbon-carbon rotors to a carbon silicon carbide rotor within
approx. 16 hours.
finally, all faces are machined to the given tolerances and dimensions using
polycrystalline diamond machine tooling which is required due to the hardness of the
material. Finally, a strict x-ray scan and porosity check to ensure the same density
throughout the entire rotor.

Advantages of the MOV´IT-CER rotor ceramic rotor over a cast iron rotor:
- Weight
- Lifetime
- Cost

The first improvement of a MOV´IT-CER rotor over the cast iron rotors is the reduced
weight. The weight is reduced by approx. 50% over a same size cast iron rotor (more
is not realistic although others claim). So this means a saving of between 4 and 8 kgs.
(!) on each corner of the car. As a result, the car feels as if it is "lighter", responds
better to the throttle and handles amazingly better. to give an example: driving over a
bump on a highway at 70 mph, this bump can be heard AND felt in your feet and in
the seat. If you take off 6 kg from each wheel, you will still "hear" the bump, but you
hardly feel it anymore since the wheel is so much lighter and follows to the road much
quicker. The next important advantage is the much quicker steering response. The car
seems to "eat" the corners, turning right or left is much "lighter" and the car turns in
the desired direction much quicker and more accurately.

The second important advantage is the lifetime.

A MOV´IT-CER rotor is extremely strong. Only polycrystalline diamond machine
tooling is able to machine the surface of this rotor. The wear of this rotor is much less
than the wear of a cast iron rotor. While replacing several cast iron rotors, the
MOV´IT-CER rotor can be left on the car and just the pads will ever need to be
replaced.
One big advantage of the MOV´IT-CER rotor compared to other ceramic rotors is the
many times higher lifetime of the MOV´IT-CER rotor.

The MOV´IT-CER rotor is made in a completely different way than all other ceramic
rotors. a MOV´IT-CER rotor starts his life as Polyacronitrile laminar fiber sheets,
which are needled together in way that the fibers are oriented only in two directions (0
& 90°). This long fiber structure is kept for the entire production process until the rotor
is finished.

As a result, the thermal conductivity and the thermal capacity of the MOV´IT-CER
rotor are much higher compared to ceramic rotors that are used on some production
cars these days. Those rotors are made out of a chopped fiber compound, so the fibers
are much shorter which results in a bad thermal conductivity and poor thermal
capacity. Of course the strength of those rotors is also reduced due to the lower
material integrity. Since the structure of the MOV´IT-CER rotor is the same
throughout the entire rotor, the lifetime is several times higher than the lifetime of the
chopped fiber version. The MOV´IT-CER rotor can be used all the way down until the
fading resistance and / or pedal travel is no longer satisfying. This will take years of
hard use and thousands of miles. So talking serious, as long as you want to have the
MOV´IT-CER rotor on whatever car, you only buy it once and take it from one car
into the next. Just change the hats and caliper supports. In our opinion, this is one big
advantage of the MOV´IT-CER rotor over the chopped fiber production rotors found
on some production cars produced these days since those have to be replaced once the
0.5 mm thick friction layer is worn.

Another important advantage of the MOV´IT-CER rotor is the much faster cooling
compared to other ceramic rotors. The long fiber structure transfers the heat
throughout the entire rotor quicker and thus dissipates the heat much quicker than a
rotor with short chopped fibers that cannot transfer the heat.

As a result of this highly sophisticated and intelligent design of the MOV´IT-CER
rotor, the cost of the complete brake at the end of the day is much lower than the cost
for normal, cast iron rotors. The lifetime is many times higher, so one invests money
only once to enjoy many years along with the benefits of reduced weight, improved
stopping AND handling of your car."
__________________

Anyone interested in this upgrade could contact me.

Figure roughly - $34,000.00 for the kit.

Attach file:



jpg  ccm-rear-2.jpg (0.00 KB)

Posted on: 2012/8/18 15:31
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TommyT-Bone Re: Brakes
Chair-man of the bored
Homestead USA
33770 Posts
Member since:
2007/12/10 0:00



Offline
Quote:

As a result of this highly sophisticated and intelligent design of the MOV´IT-CER
rotor, the cost of the complete brake at the end of the day is much lower than the cost
for normal, cast iron rotors.




How much with the Guru Discount?
Posted on: 2012/8/18 16:17
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BillH Re: Brakes
The Stig Moderator
Reno
22702 Posts
Member since:
2007/12/25 0:00



Offline
Quote:

TommyT-Bone wrote:
Quote:

As a result of this highly sophisticated and intelligent design of the MOV´IT-CER
rotor, the cost of the complete brake at the end of the day is much lower than the cost
for normal, cast iron rotors.




How much with the Guru Discount?


Fitty cent.
Posted on: 2012/8/18 16:32
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BillH Re: Brakes
The Stig Moderator
Reno
22702 Posts
Member since:
2007/12/25 0:00



Offline
Funny thing is thet the $34k represents a big savings over using Porsche ceramics for track days,
Posted on: 2012/8/18 16:33
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