which rotors to upgrade, J hook or slotted?

MD-370z

Hi fellow Z owners,

So i posted in the akebono vs bbk upgrade thread thinking about going to a bbk, but after much thought i have decided to stick with upgrading rotors and ss lines.

Now my question is to you track guys, which rotors should I go for I'm looking at stillens specials on their rotors today and am thinking either between slotted or the new j hook design. They say the J hook is noisier, just wondering how much noisier it will be, does any one have experience with them, or if not which one would you personally choose?

I will track my car for 20 minute sessions only but likely will do this every two weeks starting in may till around september, if this makes any difference in the choice, thought I would add that little bit of info!

thanks in advance,

Zat_Zuma

I use the slotted two-piece front rotors by Racing Brake. Nice quality and save around 10 lbs of weight.
Performance Brake Parts, Rotors, Calipers, Discs & more! - RacingBrake.com

I then matched them with the Stoptech slotted rear rotors.

So far it's seems to be a good system but haven't had a chance to see how they perform on the track.

Just trying to give people some other viable options.

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MD-370z

thanks for the reply, but those upgrades you mentioned seem very pricey, I decided against the bbk to go a little more budget friendly, and going two piece rotors will not really be too budget friendly and see me approaching the cost of a bbk again.

But I will look into it more.

HKYStormFront

i don't know about the noise but i know a lot of GTR guys are using j-hooks and love them, great compromise rotor between cooling and cleaning while still being strong and not cracking

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MD-370z

just looked at the ss lines in the definitive z brake source thread, and see a huge price difference between ss line costs, the goodridge seem very expensive is there a reason for this, is there a performance increase?

going a little crazy with all the questions but want to make sure i get the best bang for the buck!

ChrisSlicks

Quality and perfect fit using OEM mount points. It costs more to do it right.

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AP - Chris_B

Goodridge is a world leader in braided line technology. There is no doubt that supplying many large OE manufacturers, along with TÜV certification, puts their product knowledge and production techniques head and shoulders above most in the industry. Specifically for the 370Z, Goodridge has gone to the expense of making every fitting specifically for the car, not just kludging up something that was kinda close to make it work.

Any company can buy reels of hose, boxes of fittings and a crimping machine (we get approached all the time). But how does one know they are buying the best? Brake lines are not appearance-only items -- the play a critical role in vehicle safety. I don't believe I can save enough money on lines to take chances when it comes to brakes. If a problem were to ever arise, the cost difference will seem pretty damn small in hindsight.

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Chris Bernal
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AP - Chris_B

When the "J's" are working hard they are adding some bite to the pad. This extra bite is felt and heard as slight groaning or low-frequency humming.

For typical around-town driving, many don't notice any difference at all. Only when braking heavily will they remind you that they are helping slow the car down with added effectiveness. Smooth or plain-faced rotors don't generate this noise, but they don't generate the same braking power either!

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christian370z

In my opinion, if there is one place you should never skimp on, it is the brakes. Do it right the first time with a good set of pads and high temp fluid and if you want the additional pedal feel from the SS brake lines, go grab a set.

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Endgame

Are these rotors noisy? I thought I read that two piece rotors are somewhat noisy on the street...

NewYorkJon34

I have the goodridge SS lines, learned awhile ago that when it comes to car parts, its better to just buy the best the first time around.

Zat_Zuma

The front two piece rotors from Racing Brake are quiet but I can't say the same thing about the Hawks HP + pads. Around the city in light braking situations, they squeak like a mother*ucker. Not sure what I'm going to do about this yet.

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[B]2009 & 2017 370Z Touring Sport Autos SOLD

ChrisSlicks

Do you have the HPS or the HP+? There is no such pad as a HPS+.

The HPS pads are quiet, the HP PLUS are not.

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Endgame

cool deal. thx for the info....

JB-370z

J hook rotors are really ugly in my opp. but I hear they perform good. Just ask RCZ how he likes his.

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