Stop-Tech Drilled & Slotted Installed
 

Thanks to Lou over at Amplified Motorsport for getting my Stop-Tech rotors:tup: These things look and perform awesome.
I think he has one more set in stock, anyone interested should PM him for a price. ;)

Do you feel a difference in braking?

As far as stopping distance goes, they feel like they bite just a tad bit harder, but I could be imagining this, or justifying the cost.:icon17:
There is no difference in the pedal feel, I was worried that there might be vibrations or harshness felt since Im just using the stock pads, but nope, everything feels good. :tup:
I have the rears on order, waiting for them to come in and then I'll probably change the brake lines to SS, the fluid to Motul 600 and the pads to something else, but not sure yet.

Looks great! It seems like you add a new mod every week! Can't wait to see what the next mod is.

Ha, yeah that's what my wife keeps telling me too :icon17: but I'm not really, at least that's what I keep telling her :tup:

Oh yeah, I just did this one too: http://www.the370z.com/intake-exhaus...html#post63261

That sounds awesome! If I show up to the West Coast Nationals tomorrow (today), I'll definitely be on the lookout for your car. Maybe you can show me in person how it sounds.

Yep, I'll be there :hello:

Have you tested panic stop braking? Experienced anything like this?

Its not going to brake any better other than maybe because they are thicker/newer than your stocks... its just going to dissipate heat better...which you wont be able to tell until you get on the track.

The reduction in the mass of the rotor due to the holes and slots may not help with heat dissipation. For a given size you have less mass to transfer the heat into. However, the rotor's internal design and material selection may help with thermal transfer to the air.

heard something around these lines with slotted/drilled rotors. heard they don't do anything for DD but do preform on the track.

The point of the holes and slots is to allow hot air to flow away from the rotor and help keep the rotor cool...

However, there are downsides to this...specially with the drilled rotors...they start to get spiderweb cracks around the holes and eventually it all goes.

Starts like this:

http://www.devtools.org/rus/mtimages/rotor-cracks-2.jpg


Then ends like this
http://www.girodisc.com/newspict/cracks.jpg

^^ That's one of the reasons I will probably go with Applied Rotor Technology. They do a lot of the cryogenics for other vendors who sell rotors.

+1 for slotted but not drilled.

Abs?
 

Doesn't ABS really make this a moot point. I mean, the computer reads the tire speed and once it see's it start to lock up, it pulses the system to keep the braking at max mu. The only thing the brake rotors might do is dissipate the heat better for brake fade. Seems that's only useful if at the track.

Know, if we could just shut off ABS, that might be a different story.

I have crewed with Larry Schumacher, Andy Pilgrim, Andy Wallace and Robert Nearn at Sebring and Daytona. One of the interesting things tried by John Wright, Larry's crew chief, was non slotted/non drilled rotors at Daytona. After 24 hours the rotors were fine and the pad wear was among the best he had experienced.

What type of rotors were they running? And how do they differ from typical street rotors? Thanks in advance.

That was a while back but I'd guess an Alcon. I ran drilled rotors on my 93RSA with Big Red calipers and switched to non-drilled and to me it was better. Bedding new pads was a bit more of a pain.

Close, ABS is better described as resetting grip once grip has been overcome. It allows the tire to rotate for a split second so that you can 1) use the grip to steer and 2) use the grip to stop. Slotted/drilled rotors became big when the materials used for rotors in racing benefited from the cooling effects of doing so. Nowadays, most will argue that rotor design/materials dissipates enough heat so that you no longer need the slots. However, that doesn't mean that there is no benefit from it. Design has changed a bit though..for example they don't put the drilled holes in a row because that leads to fractures over time. Most people opt for slotted or combinations of the two.

Stoptech makes quality products and the one mini got is no exception. Great bang for the buck!

My personal favorite is this one though.
http://www.drivemaster.com.au/images...0-xs-large.jpg

Sorry to highjack the thread. Back to Minicobras ride and new brakes!

Those look pretty awesome, must cost a bundle though :icon18:

Those are the DBA kangaroo paw brake rotors from Australia, looks like the top of the line 5000XS series shown there. They are excellent rotors. Their design dramatically increases the cooling surface area so they should run a little cooler. The colored stripes you see are temperature sensitive paint that will change color so you know how hot the rotor at the end of a session.

They don't have a 370Z application yet unfortunately. But for comparison these rotors for a 350Z were about $800 for front only. But they do have some cheaper models for those that aren't into *alls out racing.

Yup, I can honestly tell you I have no need to get those DBA 5000XS. I think the stock ones will hold up just fine unless they get grooved to hell, which seems to be the only problem they have. Still waiting for rear application of carbotechs to come out for our car too. They got the front ones out already.

My rotors are still as smooth as glass, not sure what the grooving issue is a result of.

That's due to Nissan's built in brake cool down cycle. Sometimes referred to as lack of an oil cooler.

Drilled Rotors = Street Only
 

Here is what I did to my rear rotors at Summit Point in my old G35.

Funny thing is that I never noticed any brake fade or vibration while on the track. However, I was running porterfield R4 pads, steel lines, and ATE Super Blue fluid.

Check out the cracks. They go all the way to the hats!

Ouch! Did they get shocked at all by driving through a puddle?

A lot of manufacturers list drilled rotors as street only, including Brembo.

did you weight the OEM rotors after taking them off? Any weight savings with the aftermarket rotors?

The brakes on my car with sport are fantastic, but from strictly an asthetics point of view I love the drilled rotors.

They are good on the street but they fail when pushed beyond that.

I think Im going to pick up a set of slotted for the front. Not sure if I need 2 piece just yet. I may have the one piece hold me off until I get racing tires...

I got a set of these rotors as well, and I also am under the impression that initial bite is better than stock.
I'm not planning to track... just spirited street driving.

Did you switch your brake fluid and pads yet?
What did you go with?