Stop-Tech Drilled & Slotted Installed

scorpion90 · 04-27-2009, 12:01 AM

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.

alan93rsa · 04-27-2009, 08:57 PM

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.

sensi09 · 04-29-2009, 01:09 AM

Quote:

Originally Posted by alan93rsa

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.

alan93rsa · 04-29-2009, 11:43 AM

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.

RCZ · 04-29-2009, 09:01 PM

Quote:

Originally Posted by scorpion90

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.

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.

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

Minicobra1 · 04-29-2009, 11:29 PM

Those look pretty awesome, must cost a bundle though

ChrisSlicks · 04-30-2009, 09:20 AM

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.

RCZ · 05-02-2009, 01:58 PM

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.

ChrisSlicks · 05-02-2009, 09:13 PM

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

alan93rsa · 05-03-2009, 12:05 PM

Quote:

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.

ResIpsa · 05-13-2009, 09:00 AM

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!

ChrisSlicks · 05-13-2009, 09:46 AM

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

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

jmlenz · 05-13-2009, 03:33 PM

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

Pushing_Tin · 05-16-2009, 10:29 PM

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

ChrisSlicks · 05-16-2009, 11:33 PM

Quote:

Originally Posted by Pushing_Tin

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.

04-27-2009, 12:01 AM	#16 (permalink)
scorpion90 Base Member Join Date: Jan 2009 Location: Akron, Ohio Age: 76 Posts: 109 Drives: 370Z Base 7AT+Sports Rep Power: 283	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.

04-27-2009, 08:57 PM	#17 (permalink)
alan93rsa Enthusiast Member Join Date: Feb 2009 Location: Ohio Posts: 412 Drives: 16 Cayman GT4 Red Rep Power: 220	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. __________________ 16 Cayman GT4, Carmine Red, Buckets, PCCB etc.

04-29-2009, 11:43 AM	#19 (permalink)
alan93rsa Enthusiast Member Join Date: Feb 2009 Location: Ohio Posts: 412 Drives: 16 Cayman GT4 Red Rep Power: 220	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. __________________ 16 Cayman GT4, Carmine Red, Buckets, PCCB etc.

04-29-2009, 11:29 PM	#21 (permalink)
Minicobra1 A True Z Fanatic Join Date: Nov 2008 Location: Orange County, CA. Posts: 1,205 Drives: 370Z Tour, Spt, 6mt Rep Power: 645	Those look pretty awesome, must cost a bundle though __________________ 370z Tour\| Spt Pack\|Navi\|BERK CBE\|Berk HFC's\| Eibach Springs\| Hotchkis Sway Bars\|SPC Camber Arms\|15mm Ichiba Wheel Spacers\| 19"Factory Nismo Wheels-Matt Black\|Stop Tech Rotors\|TWM Shifter\|3M Tint\|Black Fangs\|Black Rear Valance\|JDM Fog Light\| MY BAND-www.myspace.com/petroleum

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04-30-2009, 09:20 AM	#22 (permalink)
ChrisSlicks A True Z Fanatic Join Date: Mar 2009 Location: North East Posts: 6,203 Drives: 09 370Z Sport M6 Rep Power: 653	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.

05-02-2009, 01:58 PM	#23 (permalink)
RCZ A True Z Fanatic Join Date: Nov 2008 Location: Miami Posts: 6,403 Drives: '09 370Z Rep Power: 1119	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.

05-02-2009, 09:13 PM	#24 (permalink)
ChrisSlicks A True Z Fanatic Join Date: Mar 2009 Location: North East Posts: 6,203 Drives: 09 370Z Sport M6 Rep Power: 653	My rotors are still as smooth as glass, not sure what the grooving issue is a result of.

05-13-2009, 09:46 AM	#27 (permalink)
ChrisSlicks A True Z Fanatic Join Date: Mar 2009 Location: North East Posts: 6,203 Drives: 09 370Z Sport M6 Rep Power: 653	Ouch! Did they get shocked at all by driving through a puddle? A lot of manufacturers list drilled rotors as street only, including Brembo.

05-13-2009, 03:33 PM	#28 (permalink)
jmlenz Track Member Join Date: May 2009 Location: San Diego Posts: 645 Drives: a car Rep Power: 643	did you weight the OEM rotors after taking them off? Any weight savings with the aftermarket rotors?

05-16-2009, 10:29 PM	#29 (permalink)
Pushing_Tin A True Z Fanatic Join Date: Nov 2008 Location: Eugene, OR Posts: 2,875 Drives: E63 AMG Rep Power: 228	The brakes on my car with sport are fantastic, but from strictly an asthetics point of view I love the drilled rotors.