I am not sure why I suddenly thought of this, but with all these Titanium products these days, is there some reason nobody has made Titanium break rotors? I don't know much about Titanium, other than light weight and strong, but that seems like 2 good qualities for rotors. I'm sure it would be expensive, but wouldn't they last a long long time?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Hybrid ITR43 &raquo;</TD></TR><TR><TD CLASS="quote">I am not sure why I suddenly thought of this, but with all these Titanium products these days, is there some reason nobody has made Titanium brake rotors? I don't know much about Titanium, other than light weight and strong, but that seems like 2 good qualities for rotors. I'm sure it would be expensive, but wouldn't they last a long long time?</TD></TR></TABLE>

Nope. It's soft.

 

How much would they cost?
As much as a Brembo caliper set?

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by thk &raquo;</TD></TR><TR><TD CLASS="quote">

Nope. It's soft.</TD></TR></TABLE>

Good point!!

 

Ti is a fragile metal under highly varying heat conditions such as a brake rotor would be.

 

It's not a good heat sink either. Similar to aluminum. Even if you build it strong enough, you will probably overheat your fluid in 2 stops.

 

Titanium rotors do indeed exist for certain applications. Do a Google search for "titanium brake rotors" and you'll find some additional information.

 

umm since when is aluminum not a good heat sink? thats pretty much what heat sinks are made of. And yes they are looking into using reinforced aluminum for brake rotors....and for heating fluid why do you think they make aluminum radiators???? good heat dissipation, there are so many things wrong with that post. not trying to bash just do ur research

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 96typeR &raquo;</TD></TR><TR><TD CLASS="quote">umm since when is aluminum not a good heat sink? thats pretty much what heat sinks are made of. And yes they are looking into using reinforced aluminum for brake rotors....and for heating fluid why do you think they make aluminum radiators???? good heat dissipation, there are so many things wrong with that post. not trying to bash just do ur research</TD></TR></TABLE>

in that case might as well make the rotor out of copper and replace the rotor every 5 miles of driving.

 

Titanium is high in tensile strength, but as a downside is very brittle, and tends to form stress fractures during heating/cooing. Titanium does have a very low coefficient of thermal conductivity, so it dissipates heat extremely well, but it is also extremely expensive. My guess would be that a company can produce carbon ceramic brakes for less cost than titanium and have the carbon units last 100x as long and dissipate heat even faster.

ATS carbon ceramic brakes = drool

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by uNF$@#! &raquo;</TD></TR><TR><TD CLASS="quote">

in that case might as well make the rotor out of copper and replace the rotor every 5 miles of driving.</TD></TR></TABLE>

yea but see copper weighs like 2x or 3x as much as aluminum does. so the most ideal metal to use is aluminum, for the weight and heat dissipation.

 

go buy carbon brake rotors.
http://www.takakaira.co.jp/per...e=ATS

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by KraZEtEggIE &raquo;</TD></TR><TR><TD CLASS="quote">go buy carbon brake rotors. </TD></TR></TABLE>
from Autozone.

 

yea just tell em u want ats rotors overnited from japan. took me a couple hours for mine to come in.

 

My $20 Chinese rotors seem to have worked ok for the last 5 years of track days. I just replace them when I do the pads and move on with life.

I guess some of you guys think you have too much money.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 96typeR &raquo;</TD></TR><TR><TD CLASS="quote">umm since when is aluminum not a good heat sink? thats pretty much what heat sinks are made of. And yes they are looking into using reinforced aluminum for brake rotors....and for heating fluid why do you think they make aluminum radiators???? good heat dissipation, there are so many things wrong with that post. not trying to bash just do ur research</TD></TR></TABLE>

I agree Aluminum transmit heat well, but one other point I omitted from mentioning is Aluminum/titanium is not a very good temporary heat storage. Specific heat capacity depends on mass. A massive steel disc is a better heat storage then a light titanium/Al disc of same volume. Aluminum transmit heats well, it heats up fast, and cool down fast because of its lower specific heat per volume. You dont want the lightweight disc cause it heats up too fast.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by d.n.d. &raquo;</TD></TR><TR><TD CLASS="quote">

yea but see copper weighs like 2x or 3x as much as aluminum does. so the most ideal metal to use is aluminum, for the weight and heat dissipation.</TD></TR></TABLE>

Check my previous post my friend. Steel disc has to be heavy for a reason.

Carbon brakes can only be used when
1. You are filthy rich and you can go through 1 set every track day.
2.You dont drive the car on public road because it wont stop at all at low temperature. Oh well. they do have carbon ceramic discs on italian exotics. So goes back to point 1
3. Your car has enough airflow to the brakes that can rapidly cool it off to avoid too much heat transfer to the fluid.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Dr Pooface &raquo;</TD></TR><TR><TD CLASS="quote">My $20 Chinese rotors seem to have worked ok for the last 5 years of track days. I just replace them when I do the pads and move on with life.

I guess some of you guys think you have too much money.</TD></TR></TABLE>

Ditto, nothing wrong with cheap blanks, look at them as disposables. In such a high wear/accelerated wear hobby like driving on a roadcourse, you begin to realize the ways to keep the cost down, while still being 100% efficient.

I too went through that mindset you mentioned :-p

 

Maybe they should spend some of that money learning how to drive, so that they don't need to spend $4000+ on brakes..

 

they are for road racing. in a 24 hour race your brakes get super hot, a carbon rotor can take all the abuse you can throw at them.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by gogogomoveit &raquo;</TD></TR><TR><TD CLASS="quote">Carbon brakes can only be used when
1. You are filthy rich and you can go through 1 set every track day.
</TD></TR></TABLE>

Actually, Carbon Ceramic rotors will generally last longer than the car. There is no material lost due to wear. Service period on Carrera GT rotors is 130k miles.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92TypeR &raquo;</TD></TR><TR><TD CLASS="quote">Actually, Carbon Ceramic rotors will generally last longer than the car. There is no material lost due to wear. Service period on Carrera GT rotors is 130k miles. </TD></TR></TABLE> what is retail on the car? $320k? it makes sense to have some cool **** like carbon rotors.

 

ALUMINUM alone would be too Soft to make a brake rotor out of.

Ti is too expensive and there are far too many suitable alternatives at a fraction of the cost.

Carbon Fiber Rotors!!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by gogogomoveit &raquo;</TD></TR><TR><TD CLASS="quote">It's not a good heat sink either. Similar to aluminum. Even if you build it strong enough, you will probably overheat your fluid in 2 stops.</TD></TR></TABLE>

aluminum holds heat longer compared to say...copper.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Dr Pooface &raquo;</TD></TR><TR><TD CLASS="quote">My $20 Chinese rotors seem to have worked ok for the last 5 years of track days. I just replace them when I do the pads and move on with life.

I guess some of you guys think you have too much money.</TD></TR></TABLE>

for iron

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92TypeR &raquo;</TD></TR><TR><TD CLASS="quote">

Actually, Carbon Ceramic rotors will generally last longer than the car. There is no material lost due to wear. Service period on Carrera GT rotors is 130k miles. </TD></TR></TABLE>

No one is gonna drive the car for 130K anyways. Very interesting fact you have pointed out anyways.