503C43 ////AMG

My rotors were received by the company cryo treating them last week and should be treated and sent to me tomorrow. I have everything I need to replace the rotors, pads, pad wear sensors, and brake lines.

After I change everything I am taking it in to have the brake fluid flushed and replaced with high temp brake fluid.

I am also going to have the rear differential fluid changed as well which should bring me totally up to date on all of my fluid changes.

I am really starting to get excited

KJI3jflarryfe93

Hey Jason man.
Tell me what's the benefits of cryo treating rotors?
Do rotors last longer, better braking, less wear n tear?

Is it an expensive mod?

Another cool mod on your awesome C43!

503C43 ////AMG

Here is a snipet from a web site:

"Any cast or manufactured part has some built in internal stresses and brake rotors and pads are no exception. This is why rotors can warp just by sitting on the shelf.
The most effective way to completely eliminate these stresses is to do it in the controlled environment of a computerized deep cryogenic treatment system. CI’s controlled deep cryogenic treatment system and process is capable of treating a wide variety of materials, such as ferrous and non-ferrous metals, metallic alloys, carbides, plastics (including nylon and Teflon) and ceramics. The entire process takes between 36 to 74 hours, depending on the weight and type of material being treated. In the case of steel and its alloys, cryogenic treatment removes the built-in kinetic energy of atoms, which is the energy of motion. There is a normal attraction between atoms that makes them want to get together. But their energy of motion keeps them apart unless that energy is removed by low temperature cooling.
This special process is not a surface treatment; it affects the entire mass of the brake rotor, drum or pad being treated, making it stress free and stronger throughout. The hardness of the material treated is unaffected, while its strength is actually increased. This eliminates the danger of heat cracks, chipping and breaking. An additional benefit of the CI process is the elimination of vibrations caused by stresses in the rotor.
In steel, the CI treatment at temperatures of (-320°F) transforms soft austenite into hard martensite. This transformation improves rotor surface wear and heat resistance; more miles can be driven before costly changes are required. This reduces the changeover rate of the rotors, thus improving the over-all life, and saving on vehicle downtime and labor. In general, a forty percent reduction in heat is seen after brake rotors, pads, and calipers are deep cryogenically treated."


I found a place called Cryogenics International that will do it for $35 a rotor



Here is a list of some other stuff for your car they cryo treat:


Brake Rotors (Cast Steel)
Problem: Crack, vibrate, and operate too hot.
Solution: Eliminate built-in stresses and refine microstructure, enabling rotor to dissipate heat quickly and evenly by about 35%.
Benefit: Reduced micro-cracking, vibrations and increase wear life, improve stopping.

Brake Pads
Benefit: Increased service life.

Engine & Drive Train Components
Problem: Break, wear rapidly, and retain heat.
Solution: Eliminate built-in stresses and refine microstructure, increase torsional strength, enable components to handle extreme loads and run much cooler.
Benefit: Eliminate cracking, breaking and increase wear & cycle fatigue life and horsepower; run cooler.

Spark Plugs
Benefit: Improve the conductivity of the electrode, thereby improving power, fuel economy and reducing emissions dramatically


They also cryo treat:
Gun barrels
Knifes/blades
Musical instruments
Audio cables


Here is the website:
http://www.cryogenicsinternational.com/


I picked Cryogenics International (CI) as I got my rotors from Autohausaz.com, Charles at CI let me drop ship the rotors to him (CI is located in Arizona as is Autohausaz.com) and then Charles is sending me the cryo treated rotors. Saved a bunch of time!

I was thinking about doing the pads but then I found this:

"Cryogenic treatment can be applied to ferous metals with good results in terms of wear rate and overall strength.

However, due to the complex nature of brake pad materials, it should NOT be applied to brake pads. The reason for this is that the ferous metal content of brake pads is actually quite low - there are numerous other materials involved, all of which undergo distinct chemical reactions with each other: binding resins, reducing agents, etc. Numerous tests have been performed on brake pads, and the end result is that binding agents cannot withstand more than -45F before losing their structural integrity...cryogenics requires at least -292F. Further, the cryogenic treatment has no affect on the binding agents in a brake pad, aside from significantly reducing (negative impart) on their design strength. Further, the brake pad material and the metal backing plate (typically made of cold rolled steel, though in some specialty applications, "exotic" metals (exotic with regards to brake pad applications...as hard annodized aluminum is not exotic in and of itself...it is actually quite common) such as hard annodized aluminum or inconel are used) have vastly different thermal expansion and contraction rates, and placing a finished pad under a cryogenic treatment is almost guaranteed to deteriorate the bond integrity at the backing plate/pad material interface, in addition to adversely affecting the bond matrix strength of the pad material itself, as mentioned earlier.

If one is able to achieve good results from cryogenically treating a brake pad AND the rotor, then scientific studies would point to the improvement in wear rates being a direct result of the treatment being applied to the rotor, and NOT to the brake pad. Validity of this statement is also affected on the type (i.e. quality, etc.) of the rotor being cryogenically treated, as well as the exact specifications of the brake pad being used.

So, for the most part/cases (99% of them), cryogenically treating a brake pad is a no-no.

However, (and I'll end it here), cyrogenically treating the ferous metal components of a brake pad BEFORE they are introduced into the final composite mixture (typically in powder form) can yield beneficial results with regards to wear rate, but certainly NOT when applied to a finished brake pad.

HTH...

With Best Regards,

Andie Lin
Cobalt Friction Technologies"

Bascally stating that cryo treating the rotor is good but treating a finished pad is bad

I will post results once I have everything installed


P.S.
SORRY FOR THE CRAZY LONG POST

503C43 ////AMG

Check out this website for cryogenic treatment of auto parts, they are claiming crazy HP/TQ gains...
http://www.nwcryo.com/motorsports.html

DRBC43AMG

Pop them in a freezer perhaps

KJI3jflarryfe93

wtf, this long life cryo trEatment is it only available in the US?
sounds cool!
thanks for X-plejning.

503C43 ////AMG

UPDATE:
My rotors have been cryo treated and shipped, I should receive them in a couple days. I will post pics but I am sure you can't see a difference from pre cryo to post cryo.

503C43 ////AMG

UPDATE:
I will be receiving my wear sensors and parking brake today, my cryo treated rotors should be here tomorrow. I need to pick up some anti-seize compound and I should have everything I need to replace my rotors, pads, pad wear sensors, parking brake, and brake lines.

I am going to the shop that installed my suspension to have them do the fluid flush and replace the fluid with high temp brake fluid as I do not have a way to pump the fluid out and really I don't want to mess with it.

hoontastic

i hear you on the fluid changes.

503C43 ////AMG

UPDATE:
As usual they tried to deliver my rotors while I was at work, I am going to arrange to pick them up tomorrow to avoid this situation again...

hoontastic

if they land on my side of town I can always swing by for you.

503C43 ////AMG

I'm having them sent to a fed ex hub up the street from my house, I should be able to pick them up tomorrow

hoontastic

even better!

503C43 ////AMG

UPDATE:
I have received the final major piece of the puzzle, my cryo treated rotors. All I need is some anti sieze, loc tite, and a torque wrench.

503C43 ////AMG

Here is a pic of my cryo treated rotors (OEM, they even have the AMG logo on the hub ), parking brake kit (Meyle HD), Stoptech SS brake lines, Akebono EURO ceramic pads, and pad wear sensors (sorry about the crappy cell phone pic.)



Looking for a nice day next week to start the project

LawRens

Okay so my post may be a little off topic here, but still relevant to the thread and trying to find a little clarity in one response:

Are we able to use 2005 sport c230k front rotors and pads to replace our own? From my understanding in the first few pages of the thread, they're both the same size (334mm) and same fitment?

hoontastic

they are 330mm vs 334mm but i believe a direct swap..

Outlawlatemodel

i have the rotors remember divide 4mm by 2 = 2mm each side, when i sat the 330mm rotors on top of the oe there was no diference in size, this whole 330vs334 is way over played, you use c43 brake pads

hoontastic

i plan on doing this myself.. Its just so much cheaper.

LawRens

Thanks for your input guys. I plan on replacing my rotors with the 330mm, seeing as how right now i can't justify spending $250+ per rotor for the c43. I don't track the car, nor do i go to excessive speeds to need the rotors at maximum functionality.

That being said, anyone know where i can find them? I recently checked Autohausaz and it doesn't list 2005 c230k front rotors anymore, and i don't know how much the dealership is going to charge, unless someone knows? I've got that $100 coupon to use ;D

hoontastic

I found that searching in "2004" in autohausaz got the right results.. even though its 2005 you are supposed to search for.

hoontastic

2034211312 part number will get you some more results on google.

popey24

I don't know if it is a problem of variation (maybe different manufacturers), but a buddy tried them and told me they were too small (pads were looking a little over the outside edge of the rotors).

Outlawlatemodel

no you really need 05-06 as far as hanging over,,, no,, i don't deal with autohaus ,,, on my search it came real clear early that i had to make sure they knew i wanted 330 mm or they will try and send you 280mm

Outlawlatemodel

you can get the c230 sport k rotors almost anywhere for under 200 dollars for the pair. I got my rotors from a place in long beach all four rotors i cant remember 260-280 shipped and are drilled, like i said the K is the difference between 280 and 330