Just got these rotors off ebay

[Poatree]

http://cgi.ebay.com/ebaymotors/ws/e...d=1,1&item=7981632627&sspagename=STRK:MEWA:IT

I'm lookin forward to getting them in, mine are horribly worn down and are pulsing like crazy.

Plus they look hot Now imma have to get some bronze caliper paint and better rims

 

[lintlars]

I got the Magnum set from the same dealer and they are great and he shipped them fast ive done lots of high speed braking and they have held up fine (auto cross/drag racing) I also picked up the lines I havnt had time to put them on though but they look like a quality product heres a pic.

 

[Supra Blues]

$218 for all four?

Did I read that right?

 

[Turkish]

$218 for all four?

Did I read that right?

You certainly did. I am thinking about picking up a set but I have heard about drilled rotors cracking?

 

[billspreston01]

I've heard a lot about drilled rotors cracking but I don't understand how there can be so many drilled rotors in production if they all crack. You would think the market would just deny them since they crack and nobody would ever buy them and they would become extinct

 

[Poatree]

Guys drilled rotors don't crack any more than normal ones unless there is a manufacturing defect

beats the hell out of slotted for your pads too.

 

[figgie]

Guys drilled rotors don't crack any more than normal ones unless there is a manufacturing defect

beats the hell out of slotted for your pads too.

wrong answer

since rotors rely on the mass of the iron to absorb and disipate heat. Cross drilling rotors lowers weight but at the same time lowers mass. less mass means less heat absorbtion and meaning the rotors will warp and crack as heat retention is greater.

Please don't bring in race cars as they chuck those rotors after EVERY SINGLE RACE.

 

[figgie]

I've heard a lot about drilled rotors cracking but I don't understand how there can be so many drilled rotors in production if they all crack. You would think the market would just deny them since they crack and nobody would ever buy them and they would become extinct

for the same reason that people buy hondas and expect to do 11's on it with just bolting a turbo on and that is it. hehe

 

[soup]

how was the shipping, duty and brokerage on these?

 

[Poatree]

shipping was 55 bucks just south of the border, where i'll go pick them up from.

no duty, no brokerage. I'm hiding them when i bring them back to Canada.

 

[Poatree]

wrong answer

since rotors rely on the mass of the iron to absorb and disipate heat. Cross drilling rotors lowers weight but at the same time lowers mass. less mass means less heat absorbtion and meaning the rotors will warp and crack as heat retention is greater.

Please don't bring in race cars as they chuck those rotors after EVERY SINGLE RACE.

You're saying that things with lower mass (and less heat absorbtion) retain their heat more?

 

[figgie]

You're saying that things with lower mass (and less heat absorbtion) retain their heat more?

no they can't disipate it as fast. Big difference.

 

[ma71supraturbo]

wrong answer

since rotors rely on the mass of the iron to absorb and disipate heat. Cross drilling rotors lowers weight but at the same time lowers mass. less mass means less heat absorbtion and meaning the rotors will warp and crack as heat retention is greater.

Please don't bring in race cars as they chuck those rotors after EVERY SINGLE RACE.

There is also a problem with chamfering the holes. Cheap rotors do not, so you have a sharp edge which is prone to developing a crack. Now 90% of the population does not need to worry about cracking rotors. Doing one stop from 120mph isn't going to build up the kind of heat to worry about, but repeated trips from 120 to 60 like on a road course or spirited back road easily induce the kind of heat the causes fade and can crack rotors (even OEM). If you live in a mountain area and descend steep grades stuck behind logging trucks you can also build up a fair amount of heat

 

[lintlars]

the ones I bought are cheap but they do come chamfered so far they have held up fine.

 

[Poatree]

These rotors are chamfered.

 

[935motorsports]

What was the total price shipped?

I'd like to compete

I have found that drilled rotors are easy to crack if you drive hard enough, long enough. However, for the average driver they are fine. You lose brake to rotor surface are though, too bad.

 

[billspreston01]

there's always a trade off. More mass means it can get rid of head faster, but loss of mass is usally done to help dissipate the heat. Drilled and/or slotted can all crack when you beat on it repeatedly and really hard. I was at a race once (forget the series name) but they were like nascars (much slower though) and they were running like huge 12" brakes, but they were vented with a solid face.

On a side note, has anybody ever seen those rotors that are shaped like flowers and crap? what kind of b/s is that?

 

[aye mate]

http://www.supramania.com/forums/showthread.php?t=1296

Mine work great...a little surface rust now cause the supra hasn't run in 3 weeks but when I put em to the test they pass every time.

 

[Poatree]

What pads do you guys think would work the best for these rotors? I know they're not hugely different than stock.

Please noone suggest carbon fibre pads, those are only good once they're race-environment hot.

I usually just go for higher end ceramics.

 

[aye mate]

I just get the cheapest ones I can find at any auto parts store.