Replacing 370Z Rotors

JARblue · 06-11-2013, 11:05 PM

I haven't tracked my car, but I would like to someday. I need some basic upgrades before that can happen, brake rotors being one. For a DD, the Z1 cross drilled and slotted would be fine, but I asked about the chamfer just in case I do get it on the track, which would be light duty anyhow. However, I went with the EBC USR slotted rotors for the bonus wet performance safety factor, since I encounter rain way more than the track despite the fact that we are in a several year long drought

XwChriswX · 06-11-2013, 11:06 PM

Quote:

Originally Posted by JARblue

Here is an example I found to explain the idea. The holes circles in purple/pink appear to be chamfered (it is possible that this was not done on purpose in this photo - I'm not sure where it came from). The other holes are not chamfered. If cross drilled rotors are for racing application, they should be chamfered to reduce the likelihood of cracking. Of course, the best solution is to have the holes cast in place when the rotor is cast.

( Click to show/hide )

I do believe the Z1 CD/S rotors are chamfered. But I will go outside tomorrow and double check for you so I'm not giving you bad info.

Quote:

Originally Posted by sparky

From some extensive reading:

Solid blank rotors = best heat dissipation, best for racing.
Slotted rotors = reduced heat dissipation, better bite and performance in the wet.
Drilled = reduced heat dissipation due to less material, faster pad wear, minimal cooling from holes, prone to cracks from excessive heat cycles, worst for racing.

I simplify but it's amazing the conflicting info out there.

Quote:

Originally Posted by JARblue

wet performance is exactly why I went with just slotted rotors... drilled rotors should be used for looks only

as well. I went with CD/S for aesthetics vs pure racecar. I figure they will suffice until I'm ready for this car to be dedicated race car, then I will look at the DBA5k/4k sets.

seizer8 · 06-11-2013, 11:57 PM

If you're not racing a Z then the looks are most likely important. I will be getting cross drilled rotors. Should be fine for regular/somewhat spirited driving.

XwChriswX · 06-12-2013, 12:20 AM

Quote:

Originally Posted by seizer8

If you're not racing a Z then the looks are most likely important. I will be getting cross drilled rotors. Should be fine for regular/somewhat spirited driving.

They have been for me:

20k mi so far, no wear marks, no cracking visible.

They've endured:

Several spirited runs
ZDayZ (Dragon/Hellbender/Cherahala)
Heavy Rains with no fading

Originally with PosiQuiet pads from Z1, switched to Ferodo DS2500's in May.

ProPartsUSA · 06-26-2013, 01:18 PM

Jarblue, you know that the vibrations that you feel are typically from the brake pad compound and by resurfacing the rotors, it should make it not vibrate anymore. Are you saying that you used the Hawk Ceramic Pads and got it vibration?

JARblue · 06-26-2013, 02:01 PM

Quote:

Originally Posted by ProPartsUSA

Jarblue, you know that the vibrations that you feel are typically from the brake pad compound and by resurfacing the rotors, it should make it not vibrate anymore. Are you saying that you used the Hawk Ceramic Pads and got it vibration?

Yes, I am aware that "warped rotors" are typically the result of uneven pad depositing on the rotor surface and that resurfacing or "turning" the rotors can prolong their life. The vibration I was getting was from stock rotors and stock pads, and since they were already at 35K miles, I decided to replace both rotors and pads in the front. I had already decided to go with the Hawk pads because I have used them on a previous car with good results. I ended up getting the EBC USR slotted rotors and swapped out the stock fluid for ATE SuperBlue. I did this all last Tuesday and had the amazing opportunity to drive it on the Circuit of the Americas track this past weekend. The braking performance on my Z was excellent

ProPartsUSA · 06-26-2013, 02:12 PM

Quote:

Originally Posted by JARblue

Yes, I am aware that "warped rotors" are typically the result of uneven pad depositing on the rotor surface and that resurfacing or "turning" the rotors can prolong their life. The vibration I was getting was from stock rotors and stock pads, and since they were already at 35K miles, I decided to replace both rotors and pads in the front. I had already decided to go with the Hawk pads because I have used them on a previous car with good results. I ended up getting the EBC USR slotted rotors and swapped out the stock fluid for ATE SuperBlue. I did this all last Tuesday and had the amazing opportunity to drive it on the Circuit of the Americas track this past weekend. The braking performance on my Z was excellent

Just making sure since a lot of people have a misconception of a warped rotor

JARblue · 06-26-2013, 02:18 PM

Quote:

Originally Posted by ProPartsUSA

Just making sure since a lot of people have a misconception of a warped rotor

DLSTR · 06-26-2013, 03:23 PM

Quote:

Originally Posted by JARblue

Yes, I am aware that "warped rotors" are typically the result of uneven pad depositing on the rotor surface and that resurfacing or "turning" the rotors can prolong their life. The vibration I was getting was from stock rotors and stock pads, and since they were already at 35K miles, I decided to replace both rotors and pads in the front. I had already decided to go with the Hawk pads because I have used them on a previous car with good results. I ended up getting the EBC USR slotted rotors and swapped out the stock fluid for ATE SuperBlue. I did this all last Tuesday and had the amazing opportunity to drive it on the Circuit of the Americas track this past weekend. The braking performance on my Z was excellent

Nice to hear!! I just might mimic your set up next year when the brakes will be due!

sparky · 06-27-2013, 02:54 AM

Quote:

Originally Posted by ProPartsUSA

Just making sure since a lot of people have a misconception of a warped rotor

This is true but don't underestimate peoples need to spend money on their car for no good reason.

JARblue · 06-27-2013, 08:10 AM

Quote:

Originally Posted by sparky

This is true but don't underestimate peoples need to spend money on their car for no good reason.

Yup! I knew I could get the rotors turned for <$50, and the pads were only half worn. And a friend gave me the brake fluid. What did I do instead? Spend $400+ to replace front rotors and pads

But I still think it was a good reason... safety features likes brakes are almost always a good reason to spend money

ProPartsUSA · 06-27-2013, 01:25 PM

Quote:

Originally Posted by JARblue

Yup! I knew I could get the rotors turned for <$50, and the pads were only half worn. And a friend gave me the brake fluid. What did I do instead? Spend $400+ to replace front rotors and pads

But I still think it was a good reason... safety features likes brakes are almost always a good reason to spend money

Haha. I never understand why people bother resurfacing rotors. They never last as long as fresh new rotors and find it a waste of money.

06-11-2013, 11:05 PM	#16 (permalink)
JARblue A True Z Fanatic Join Date: Mar 2011 Location: Austin, TX Age: 43 Posts: 36,450 Drives: 11 Z34, 98 E36 M3 Rep Power: 2684440	I haven't tracked my car, but I would like to someday. I need some basic upgrades before that can happen, brake rotors being one. For a DD, the Z1 cross drilled and slotted would be fine, but I asked about the chamfer just in case I do get it on the track, which would be light duty anyhow. However, I went with the EBC USR slotted rotors for the bonus wet performance safety factor, since I encounter rain way more than the track despite the fact that we are in a several year long drought __________________ 2011 370Z 6MT Sport Gun Metallic \| ARC \| CJM \| Ecutek \| FI \| Fujimura \| R2C \| SPL \| Stillen \| TWM \| Z1 \| ZSpeed \|

06-11-2013, 11:57 PM	#18 (permalink)
seizer8 Base Member Join Date: Jan 2013 Location: Carol Stream IL Chicago Posts: 103 Drives: 2010 Z Touring AT Rep Power: 12	If you're not racing a Z then the looks are most likely important. I will be getting cross drilled rotors. Should be fine for regular/somewhat spirited driving. __________________ 2010 Platinum Graphite, Touring; Custom Coated Sport Brakes; Z1 Drilled and Slotted Rotors; SS Brake Lines; Hood Struts; Rear LED Fog Light; GT-R Wheels; LED Interior Lighting Sunday Cars and Coffee

06-26-2013, 01:18 PM	#20 (permalink)
ProPartsUSA Base Member Join Date: Jun 2013 Location: Canoga Park Posts: 41 Drives: 07 350z CS 6sp Rep Power: 12	Jarblue, you know that the vibrations that you feel are typically from the brake pad compound and by resurfacing the rotors, it should make it not vibrate anymore. Are you saying that you used the Hawk Ceramic Pads and got it vibration? __________________ ProParts USA Like Us on Facebook http://propartsusa.com/images/350z600x125.jpg

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
CZP 2-Piece Rotors - Stoptech Rotors - Hawk Pads - SS Lines Great Prices & Quality!!	Coz@Czp	Suspension/Brakes	29	07-07-2017 01:30 PM
[WTB] Looking for 370z OEM Rotors and calipers NYC	daxg1982	Parts for sale (Private Classifieds)	13	04-13-2012 08:15 PM
racing brake 370z rotors	Z eliminator	Brakes & Suspension	9	04-29-2011 09:25 PM
G37/370Z Sport rotors	doyle4281	Nissan 370Z General Discussions	6	10-21-2010 07:18 PM
370z Nismo Rotors	znism11	Brakes & Suspension	14	08-14-2009 08:31 PM