Marcel Burkett

Hi all , I came across these brakes on e bay , they look great but I dont know since noot much information is posted on them , "This is a 8 piston super brake system with the 330mm diameter and is suitable for 17"+ wheels.It has 32mm thickness design and vent holes to scatter the heat.
This product can be used with all of the AP specification.Comes complete with all fixings inc brake pads ,flexi brake lines.
When some of the parts are damaged, you can use AP parts to combine with D2 products, such as brake disk and brake hose. " Is anyone using them ? please post your opinions .

Zomarspeed

Search the Skyline GTR forum in uk, some people use them. You kan also look at the K-sport BBK they are also cheap.

Miata_mx5

D2 and K-Sport are all the same chinese made AP Racing knockoff brakes. Rotora is a chinese made knockoff of brembo brakes.

That's why the AP stuff works, because they copied it. But don't think these brakes will perform ANYTHING like the real deal brakes especially on the track and heavy use. It's maybe ok for a stupid show car and the occasional hard stop, but other than that it's useless IMO.

There is a good reason why seasoned time attack cars don't use Rotora, K-Sport and D2 products.

If you want a good value brake that is one of the best bar none: look at Performance Friction Brakes. They are made in the USA and some of the best brakes you can buy. Panspeed has them on their time attack FD, as well as most Nascar racecars, 60 percent of Super GT cars, and Formula cars. Give them a call.

Marcel Burkett

thanks , I will . I also found another BBK on ebay , http://cgi.ebay.com/ebaymotors/BIG-B...spagenameZWD1V , what do you think ?

primerGrey

iTrader: (13)

They certainly look nice, but a single caliper is $2-3K. I'm still trying to figure out how they machine it out of a single block of aluminum. I'm willing to believe this is "one of the best", but I'm not sure it is a "good value"...

http://www.hrpworld.com/index.cfm?tp...action=product

Miata_mx5

Wilwood brakes are a lot more tried and true than chinese brakes. 790 is a steal of they are real wilwood brakes. Although i would use different rotors (not a fan of drilled). Wilwoods will more than do for hard braking and the usual track day.

A good buddy of mine used to race his S2000 for about 4 years (tons of mountain roads driving, and 2 seasons of scca honda cup and his wilwoods did great. He never complained about their performance.

For a pure racecar, with more horsepower though, you might want to set it up differently. Depends on a few variables.

EJayCe996

You don't need their "best" unless you have a 100% racecar.

ptrhahn

iTrader: (9)

Buy yourself a set of StopTechs and call it done. The whole kit is less that one PFC caliper, and they are PROVEN quality, with proven US customer support.

primerGrey

iTrader: (13)

Great! That gets me down to $2K/caliper. Unless I buy a rear. Then its only $1.5K/caliper. Thanks for the help, I'm in!

Miata_mx5

^ LOL. Honestly, that's not bad for pure race brakes if you shop around.

But, i agree with Ptrhahn. Stoptech's brake kit or Racing Brakes kit will do for the street car with some track use. Very fair pricing, with US support and they stand behind their products.

habu2

I can't believe you guys are buying something as critical as brakes from Chinese vendors on eBay...

Miata_mx5

^ Some people value their wallets more than their lives.

M0 LoW PRiZE F() T3h K-ZpoRT brakezz.

No sympathy for people who don't do their homework about buying quality parts. You wanna be a guinea pig for chinese parts, be my guest. Then there are the nutswingers who think they made some massive new discovery about some new southeast asian made brakes (YEAH MAN THIS CHEAP JANK WORKZ BRO!.........but all the people who know better don't want a part of it).

stuntman

+1 on Performance Friction (nice to see some people have heard of them)

The D2/K-Sport dosn't look anything like an AP caliper. It looks like an 'inexpensive' 2pc bolted together caliper with very cheap hardware.


Apparently Rotora had a huge influx of cash, R&D, and resources and their products made a huge jump in improvement within the past few years. Ive driven on a few Rotora systems years ago and wouldn't wouldn't recommended them.

Recently, I competed in the 25 Hours of Thunderhill in the E0 class in an E36 M3 that was equipped with Rotora's new 6 piston front caliper and 4 piston rear. We finished 1st in class and 2nd overall. The brakes were phenomenal -despite my initial hesitation and skepticism of the brakes before driving the car. The brakes remained consistent and had great pedal feel (wasn't the best pad choice though) and I now would definitely recommend them. I wouldn't believe you if you told me 2 years ago that I would now be recommending Rotora.

They were consistent and won the 25 Hours of Thunderhill. Granted Rotora dosn't have the motorsports background of PFC or Brembo, but events like this build the credibility and test the design and durability of any braking system. Rotora definitely finished with flying colors. For the price point, they are hard to beat. **Make sure you get their new stuff.






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GoodfellaFD3S

iTrader: (213)

Thanks for the input Stuntman

Miata_mx5

Stuntman:

Good to know the info, i will def. keep my eyes peeled. I have not yet seen their newest systems in action.

I kinda see it the way i see Rota and Sportmax wheels. Sure a few track guys can run them, but i still would not trust my life with them.

I also got SUPPOSED word from a good source that Rota supplied special wheels to certain time attack teams that were better quality materials than the stuff they sell to the public. You can only hold quality so much with keeping the price so low. Something has to be missing or they are hellbent on destroying the market (which will eventually be their undoing anyway).

stuntman

Wouldn't suprise me about Rota supplying special wheels. Many coilover companies in Asia do the same thing.

The Rotora brakes on our E0 car were off the shelf calipers with race pads. After the race, I actually wouldn't mind putting their new/curent products on other track cars. The 25 Hours of Thundehill really pushes evey component of a car to its limits. Not only making it to the finish (which is an accomplishment of its own) having a class win and 2nd oveall is a huge achievement. PFC even lists their 25hr win unde their lists of accomplishments. Since Rotora made it through this race (and won), they should be more than capable for any street/track application. -IMO

Miata_mx5

Makes me wonder if they changed their manufacturer.

Good to know.

Marcel Burkett

Are any of you baseing your opinions on actual fact about the named BBk , everyone has started talking about another set (Rotora) that I did not ask about ! is this because you do not know about the D2 or Wilwood kits ?

Miata_mx5

Wilwood = good.

D2 = Ksport = ****.

Marcel Burkett

Facts and first hand experiences here,http://www.skylinesaustralia.com/for...s-t167104.html , not a load of useless "**** talk" from people who are clearly uninformed.

Miata_mx5

Then you know what you want. Go buy D2 brakes then.

I have spent a good amount of time working in and speaking to many people in the automotive industry is these brakes are a hit or miss. I don't wanna spend a penny on a product thats made in southeast asia that's a HIT OR MISS on my car.

Do whatever you want.

allrotor93

iTrader: (126)

the stoptech kit is proven and is only $500 more than the d2 or g4 kit.

Marcel Burkett

Yet again , what is the basis for your arguement ? what are yours or other peoples experiences ? You sound like you dont like the brakes because they are from "south east asia" , could you be anymore BIASED ???

stuntman

Did you read the thread? They OP seems to have demonstrated that the durability of the D2 caliper isn't up to snuff due to the poor metallurgy of the BBK:


"
Problems!
After the brakes performed well at the track I was pretty happy. On the way home from the track the next day things turned for the worse. While cruising at 100kph there was a sudden knock and then very loud grinding combined with quite serious banging. I pulled over and stopped the car gently and looked at the front right where the problem obviously was. With the wheel off on the side of the road it was obvious what the issue was, one of the bolts which holds the caliper and bracket to the car was gone! My first suspicion was that the bolt sheared off however there was nothing there in the thread, it was completely missing. This is highly dangerous to say the least, there are only 2 bolts in total which hold the caliper on. The initial obvious conclusion is that I had failed to tighten the bolt correctly, however I do recall tightening this upon installation, and because I know that brakes are your life on the race track, I also tightened all 8 bolts that hold the brakes on AGAIN before putting the wheels back on.

So I was stuck on the highway between Philip Island and Melbourne on Easter weekend (you can imagine how busy it was) with the sun going down and over 2 hours from home. A very good friend came and had a look at what the bolt size is, went and got the right bolts from home (no place would be open for 2 more days given the long weekend) and drove back, you certainly know who your friends are at times like these. When we went to put the bolts back on to attach the caliper and bracket again we found we couldn't get the second bolt to line up through the hub and into the bracket threads no matter how hard we tried and in our efforts damaged the thread in the bracket pretty badly.

It ultimately turned out (it's now night time on the side of a busy highway so visibility with a torch is poor) that the holes in the bracket didn't properly line up with the hub holes... they were out by about 1 - 2mm, and these clearly ligned up previously when I installed the brakes. From here I have a *theory* as to what the problem was. I think the bracket material is not quite right and was warped or expanded due to heat, and this is why the bracket no longer fits properly when before it did. This expansion also made the threaded bolt hole bigger (I know it sounds counter intuitive, but bolt holes get BIGGER when metal expands) which caused them to loosen and the bolts over time work themselves out which caused my problem. After repairing the brakes I checked the other side to be safe and indeed one of those bolts was also loose, I think this also backs up the theory that it wasn't installation error... to miss tightening BOTH sides is really unlikely. The holes in the hub also had gouges in them from the thread of the bolts which must have been exerting a lot of force on them.

After elongating the holes in the hub with a file (really strong metal as you can imagine) we were finally able to get the bolt to go in. Although tight, one of the threads is ruined in the bracket and while it was good to get me home once I pull it off I won't be able to use that bracket again, and adding to the frustration with the elongated holes if I ever want to fit standard brakes again or a new bracket I may have to replace the hub sad.gif The caliper has been pretty scraped up and deep scratches have been gouged into the inside of the wheel, and this event also knocked off the wheel weights so I had to drive home on an unbalanced wheel with a bit of vibration, so I hope my brand new expensive semi slick isn't ruined. All in all, not much fun. Had this happened at high speed I don't think you'd consider it to be too good either. Justjap says I'm the first person to experience this problem.

Just great....
"


I mentioned Rotora because "miata mx5" lumped Rotora in the same group as D2/Ksport. I gave my personal feedback initially agreeing with Rotora's quality and performance, as well as my personal experience and information about the changes within the company to raise their quality and performance standards to come up with a product that helped me win the longest sports car endurance race in the world (as per NASA's claims). I've driven on many manufactuer's products from AP, Alcon, Brembo, Stoptech, Rotora, Performance Friction, Wilwood, VRT (K-Sport?) and many of the "OEM" brembo "labled" products (many of the cars with OEM "Brembo" brakes are not designed or manufactured by Brembo - Ex: Nissan R35GTR, 350Z, EV0, Acura RL, etc...) It also sounds like you have made up your mind on going with the D2 brakes. I agree that some others are not basing their comments on personal experience but you are also not looking at the information provided.


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Miata_mx5

Yes, i am very biased. I learn off other's experiences so i don't need to make mistakes on my own.

My experiences with rotora were not that great, which is why i questioned them. But, i will try to keep my eye on the new stuff.