[stocki]

The QV rear rotors (steel, not carbon) are 350x28 mm.

 

[lockem]

The QV rear rotors (steel, not carbon) are 350x28 mm.

There are no steel rotors on any Giulia. The choices are iron or carbon-ceramic.

 

[stocki]

There are no steel rotors on any Giulia. The choices are iron or carbon-ceramic.

I stand corrected.
But you know what I meant

 

[lockem]

I stand corrected.
But you know what I meant

I failed to thank you for the dimensions, so thanks. IIRC the 2.0T fronts are 330mm diameter.

 

[stocki]

I failed to thank you for the dimensions, so thanks. IIRC the 2.0T fronts are 330mm diameter.

In the US, yes.
Some variants in europe run 305mm.

 

[John_K_348]

Any ceramic pads available for iron rotors? That is my preference and the main reason for my project. I will check. Thanks for the info.

update: Wow $191 for the Ti fronts/Quad rears. That's about the usual price for an axle. No ceramics per se. I was able to get the Lexus ISF set in ceramic - actual low dust - for about $50...BOTH axles! Yeah maybe I put $200 into it for labor but they are actual low dust pads and not just slightly less than filthy stock. I don't car about the "performance." I don't drive hard enough or on the track yet. But for spirited driving and low maintenance detailing, they have been great. And I like the softer modulation on the pad. Makes smooth stopping a whole lot easier. Powerstop Evolution Ceramics. No sensors but I don't plan on self machining my rotors. No codes either. Disarm and leave the key in the cup holder. Bag and zip tie your leads. It's nice to know we have another source. May be the go to shop if I'm too tired.

 

[rumifaizer]

Planning ing on following Lockem's lead with the Ceika rotors. Getting slotted only with dark red rotor hats (my calipers are red) and the black anti corrosion treatment. $1280 from what I can tell. Now available directly on the website. Any advice on if I should switch to drilled or add drilled to slotted? Basically a street vehicle that I have been learning to track 4-5 times per year. Sticking with OEM pads unless someone has a better suggestion.

Thanks

 

[Eagle7]

I'm not taking my car to the track, so I ordered the Ceika drilled and slotted rotors; I figure those will be the lightest in weight. Order has shipped and is supposed to arrive by end of day Tuesday. Sticking with OEM pads at the moment.

 

[Nik]

I ordered replacement Brembo disks, with Delphi rear pads and Power Stop ceramic front pads. Hopefully installing next weekend, though I plan at some point to switch to the Tarox pads whenever the rears also become available.

 

[Eagle7]

Just received the Ceika rotors. They are quite nice. I put them on a digital shipping scale and got the following:

Fronts are 16.2125 lbs,

Rears are 12.825 lbs.

According to a Brembo spec sheet, the factory fronts weigh 20.285 lbs, so the Ceika fronts are 4.07 lbs lighter each. The factory rears are 16.204 lbs, so the Ceika rears are 3.38 lbs lighter each. This works out to a total reduction of unsprung rotating weight of 14.9 lbs for all four rotors combined; 8.14 lbs removed from the front wheels, and 6.76 lbs removed from the rear wheels. It's an overall static weight reduction of 37.27 lbs.

Combined with my lighter FastWheels FC04 wheels which are 6.4 lbs lighter than the factory wheels, I'm reducing the unsprung rotating weight of the front wheels by 21.014 lbs, and the rear wheels by 16.253 lbs. This will improve acceleration, braking and suspension response while cornering.

Can't wait to get the new rotors installed!

 

[LBAlphaQV]

I stand corrected.
But you know what I meant

The QV rotors are a co-material aluminum/iron.
I don’t have the link handy, but the Brembo site is very detailed about the QV brakes they supplied.

 

[MacGeek]

The QV rotors are a co-material aluminum/iron.
I don’t have the link handy, but the Brembo site is very detailed about the QV brakes they supplied.

The rotors themselves are iron. What Brembo means by co-cast rotors is that they have an aluminium hat, which, instead of being bolted to the rotor, is directly cast into it - much like, for instance, those overmoulded rubber inserts you find on power tools.

 

[LBAlphaQV]

The rotors themselves are iron. What Brembo means by co-cast rotors is that they have an aluminium hat, which, instead of being bolted to the rotor, is directly cast into it - much like, for instance, those overmoulded rubber inserts you find on power tools.

Thanks for the clarification MacGeek

I found the Brembo description:

“Co-cast discs bring together the benefits of the two materials that they are made with: cast iron (for its thermal properties, like a reduction in deformation and good conductivity) and aluminium (for its lightness). The distinctive traits comprise the way in which the two materials have been cast into a single component and the behaviour of the disc itself. Indeed, it is a fully-integrated disc at low temperatures, yet it acts like a floating disc at high temperatures when maximum performance is required and the disc tends to get deformed.”

 

[lockem]

Just received the Ceika rotors. They are quite nice. I put them on a digital shipping scale and got the following:

Fronts are 16.2125 lbs,
View attachment 85152

Rears are 12.825 lbs.
View attachment 85154

According to a Brembo spec sheet, the factory fronts weigh 20.285 lbs, so the Ceika fronts are 4.07 lbs lighter each. The factory rears are 16.204 lbs, so the Ceika rears are 3.38 lbs lighter each. This works out to a total reduction of unsprung rotating weight of 14.9 lbs for all four rotors combined; 8.14 lbs removed from the front wheels, and 6.76 lbs removed from the rear wheels. It's an overall static weight reduction of 37.27 lbs.

Combined with my lighter FastWheels FC04 wheels which are 6.4 lbs lighter than the factory wheels, I'm reducing the unsprung rotating weight of the front wheels by 21.014 lbs, and the rear wheels by 16.253 lbs. This will improve acceleration, braking and suspension response while cornering.

Can't wait to get the new rotors installed!

I measured 16.2 pounds front rotor and 13.2 pound rear rotor. I also measured the Brembo rotors as 21.0 pounds front and 16.5 pounds rear. I used a rather crude scale to weigh things, so maybe my scale has a systematic error. I measured pairs of rotors in order to improve accuracy.

Keep in mind that the Ceika rotors have curved vanes inside for improved ventilation. I believe that the Brembo rotors have simple posts (less expensive to manufacture). On track or just rolling down from a mountain pass the vanes will make a significant difference in brake temperature.

I think your static weight reduction number of 37.27 pounds includes your wheels.

 

[Eagle7]

I measured 16.2 pounds front rotor and 13.2 pound rear rotor. I also measured the Brembo rotors as 21.0 pounds front and 16.5 pounds rear. I used a rather crude scale to weigh things, so maybe my scale has a systematic error. I measured pairs of rotors in order to improve accuracy.

Keep in mind that the Ceika rotors have curved vanes inside for improved ventilation. I believe that the Brembo rotors have simple posts (less expensive to manufacture). On track or just rolling down from a mountain pass the vanes will make a significant difference in brake temperature.

I think your static weight reduction number of 37.27 pounds includes your wheels.

Yes, the 37.27 pounds of static weight reduction included everything; brake rotors and wheels.

I'll have to wait until I get the factory rotors off the car to weigh them; I just used the number from Brembo's spec sheet.

The rotors I bought are drilled and slotted, which would probably explain the difference in weight for the rear rotor from mine to yours (I believe yours are just slotted, right?) but it's interesting that the fronts are essentially identical. If the drilled holes remove enough material to be measurable, why wouldn't that show on the front rotors? That could possibly be the difference in scale accuracy though; mine is a digital postal scale.

 

[MacGeek]

Thanks for the clarification MacGeek

I found the Brembo description:

“Co-cast discs bring together the benefits of the two materials that they are made with: cast iron (for its thermal properties, like a reduction in deformation and good conductivity) and aluminium (for its lightness). The distinctive traits comprise the way in which the two materials have been cast into a single component and the behaviour of the disc itself. Indeed, it is a fully-integrated disc at low temperatures, yet it acts like a floating disc at high temperatures when maximum performance is required and the disc tends to get deformed.”

Yup. They achieve it by using the different thermal expansion coefficients of cast iron and aluminium to their advantage.

 

[lockem]

Yup. They achieve it by using the different thermal expansion coefficients of cast iron and aluminium to their advantage.

But are co-cast rotors available for the 4 cylinder models? Are they "better" than the spring type full floating rotors?

 

[A7f4]

Since installing my Ceika rotors I noticed there is a clicking sound during low speed maneuvering usually at full lock. The sound is rotational and doesn’t seem to occur in a straight line.

Any ideas guys?


Sent from my iPhone using Tapatalk

 

[Eagle7]

Since installing my Ceika rotors I noticed there is a clicking sound during low speed maneuvering usually at full lock. The sound is rotational and doesn’t seem to occur in a straight line.

Any ideas guys?


Sent from my iPhone using Tapatalk

Is it coming from the front? Both sides? Did you do the install yourself? Maybe the pads are moving slightly as they rub across the slots and/or holes?

 

[A7f4]

Is it coming from the front? Both sides? Did you do the install yourself? Maybe the pads are moving slightly as they rub across the slots and/or holes?

Coming from the front and yes both sides. I didn’t do the install myself, the workshop did it and they have taken it all apart and cleaned it twice and still hasn’t resolved the noise. They can’t replicate the noise with the car in the air so it must be only when there is load


Sent from my iPhone using Tapatalk