ZPOST
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   ZPOST > BMW Z4 Technical Talk > Track / Autocross / Dragstrip / Driving Techniques
  TireRack

SUPPORT ZPOST BY DOING YOUR TIRERACK SHOPPING FROM THIS BANNER, THANKS!
Post Reply
 
Thread Tools Search this Thread
      08-21-2011, 07:51 PM   #1
3002 tii
Lieutenant General
3002 tii's Avatar
2272
Rep
12,559
Posts

Drives: Z4 M, X5, GX460
Join Date: Apr 2008
Location: CT

iTrader: (99)

Garage List
Separate Track Pads Yes, but Rotors?

For HPDE events, for those running track pads do you also use another set of rotors? And while on topic pads, what are you running front and rear? Would stock pads in rear work with say Hawk DTC 60?
__________________
Follow for latest mods
Appreciate 0
      08-21-2011, 10:38 PM   #2
onelove
Track Head
onelove's Avatar
United_States
24
Rep
503
Posts

Drives: 07 Z4M
Join Date: Jan 2008
Location: Orlando,FL

iTrader: (0)

Same rotors is fine, just make sure to bed the hell out of your track pads, and your street pads as well after each swap. This car tends to like equal bias on the pads, or very close to it from what i've found by trial and error. I've been running the DTC-70s for the past 4-5 events, and while the inital bite is awesome, trailing off leaves much to be desired, have a pair of 60's to throw in next but may look into other options as well.

What tires are you running ?
__________________
2004 Porsche GT3 |White
HRE R40 Monoblocks | KW Clubsport Suspension | RSS Lower Control Arms and Suspension Links | GT3RS Wing and Front Bumper | Cup Car Lip | Euro GT3 Seat | GMG Half Cage | Europipe Exhaust | EPL Tuning
Appreciate 0
      08-22-2011, 06:59 AM   #3
3002 tii
Lieutenant General
3002 tii's Avatar
2272
Rep
12,559
Posts

Drives: Z4 M, X5, GX460
Join Date: Apr 2008
Location: CT

iTrader: (99)

Garage List
Quote:
Originally Posted by onelove View Post
Same rotors is fine, just make sure to bed the hell out of your track pads, and your street pads as well after each swap. This car tends to like equal bias on the pads, or very close to it from what i've found by trial and error. I've been running the DTC-70s for the past 4-5 events, and while the inital bite is awesome, trailing off leaves much to be desired, have a pair of 60's to throw in next but may look into other options as well.

What tires are you running ?
I'm waiting for my Hankook V12's to wear down, but I plan on replacing with the R-S3's.
__________________
Follow for latest mods
Appreciate 0
      08-22-2011, 02:24 PM   #4
DerekSelmanRacing
Second Lieutenant
DerekSelmanRacing's Avatar
United_States
8
Rep
222
Posts

Drives: 05 Z4 3.0 SMG, 01 530
Join Date: Jul 2008
Location: Lake Havasu City, AZ.

iTrader: (0)

I do not change rotors.

DTC-60 in front with stock rears would give you too much front bias.
Appreciate 0
      08-22-2011, 02:53 PM   #5
3002 tii
Lieutenant General
3002 tii's Avatar
2272
Rep
12,559
Posts

Drives: Z4 M, X5, GX460
Join Date: Apr 2008
Location: CT

iTrader: (99)

Garage List
Quote:
Originally Posted by DerekSelmanRacing View Post
I do not change rotors.

DTC-60 in front with stock rears would give you too much front bias.
Thats what I figured, any suggestions for rears? Would HP+ be ok or would you suggest using the same pads on both front and rear?
__________________
Follow for latest mods
Appreciate 0
      08-22-2011, 05:38 PM   #6
onelove
Track Head
onelove's Avatar
United_States
24
Rep
503
Posts

Drives: 07 Z4M
Join Date: Jan 2008
Location: Orlando,FL

iTrader: (0)

Quote:
Originally Posted by Dubbedown View Post
Thats what I figured, any suggestions for rears? Would HP+ be ok or would you suggest using the same pads on both front and rear?
Same pad front and rear.

Check out this months issue of Grassroots motorsports, they have a great review on E46 M3 track pads, and also address the different compounds front to rear. A worthwhile read.
__________________
2004 Porsche GT3 |White
HRE R40 Monoblocks | KW Clubsport Suspension | RSS Lower Control Arms and Suspension Links | GT3RS Wing and Front Bumper | Cup Car Lip | Euro GT3 Seat | GMG Half Cage | Europipe Exhaust | EPL Tuning
Appreciate 0
      08-23-2011, 01:37 PM   #7
DerekSelmanRacing
Second Lieutenant
DerekSelmanRacing's Avatar
United_States
8
Rep
222
Posts

Drives: 05 Z4 3.0 SMG, 01 530
Join Date: Jul 2008
Location: Lake Havasu City, AZ.

iTrader: (0)

If you're running Hawk for track only, my experience on the Z4 indicates SLIGHTLY less pad in rear; yes, I did read the article. That would be DTC70/DTC60 or DTC60/HT10.
Appreciate 0
      08-23-2011, 02:29 PM   #8
3002 tii
Lieutenant General
3002 tii's Avatar
2272
Rep
12,559
Posts

Drives: Z4 M, X5, GX460
Join Date: Apr 2008
Location: CT

iTrader: (99)

Garage List
The more I've read up on pads, the more I'm leaning towards PFC 06's, good price, and they last forever without killing your rotors. I may run PFC 06's on both front/rear.
__________________
Follow for latest mods
Appreciate 0
      08-23-2011, 05:50 PM   #9
Mcoupe06
New Member
Mcoupe06's Avatar
United_States
2
Rep
5
Posts

Drives: 2006 Z4 M Coupe
Join Date: Jan 2011
Location: Cabin John, MD

iTrader: (0)

PFC 06's

Quote:
Originally Posted by Dubbedown View Post
The more I've read up on pads, the more I'm leaning towards PFC 06's, good price, and they last forever without killing your rotors. I may run PFC 06's on both front/rear.
I'm on my second set of PFC06 pads - I got 24 days on track out of them last year - really impressed with the pads - good bite and I haven't been able to over heat them (yet anyway) - rotors are wearing as expected - I run them front and back.
Appreciate 0
      08-23-2011, 06:26 PM   #10
Caddyshk
M = Midlife Crisis
Caddyshk's Avatar
Canada
65
Rep
2,006
Posts

Drives: 2006 Z4MC Interlagos
Join Date: May 2007
Location: Fort Erie, Ontario, Canada

iTrader: (0)

Stoptech Friction on OE rotors for me.
__________________
2006 Z4MC - #LL93158
SS Race Cans, RE X Pipe, DKF Sec 1, Fabspeed Headers, OE STB, AS Shifter, Dave Z CDV, GC Coil Overs, Stoptech lines, Hawk DTC Pads, RE Clutch Stop, RE Transmission Mounts, Vibra-Technics Engine Mounts, Poly FCAB & RTAB, LeatherZ M Shift Boot, Tekarbon Rear Spoiler, CF Grills, Advan RS DGM
Appreciate 0
      08-23-2011, 09:19 PM   #11
The HACK
Midlife Crises Racing Silent but Deadly Class
The HACK's Avatar
1817
Rep
5,337
Posts

Drives: 2006 MZ4C, 2021 Tesla Model 3
Join Date: Oct 2007
Location: Welcome to Jamaica have a nice day

iTrader: (1)

I keep the same rotors on but bed in the track pads during the first set of orientation laps.

I've found that with my driving style this chassis does not like different pads front and rear. I drove for about 1 year with Cobalt XR3s up front and Cool Carbons in the rear and the combination SUCKED. Well, suck is a harsh word, but when I swapped for Hawk DTC60s all around, despite the Hawks not having the same initial bite as the Cobalt, I was having far more consistent laps and time with the Hawks. What I found, was that while having different compounds for a handful of laps were okay, they became a liability in the later laps. The front brakes will require the front tires to work harder and I would end up with the front tires being anywhere from 4-6 psi higher than the rears, and the harder I pushed the quicker the onset of "understeer" due to the fronts being overwhelmed. With equal compounds front and rear, I've not seen anything even remotely approaching the same weird issues with uneven temperature and pressure increases. The fronts and rears are never more than 1/2 psi apart (depending on what track and how 'frisky' I feel).
__________________
Sitting on a beat-up office chair in front of a 5 year old computer in a basement floor, sipping on stale coffee watching a bunch of meaningless numbers scrolling aimlessly on a dimly lit 19” monitor.
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 06:03 PM.




zpost
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST