Page 1 of 2 12 LastLast
Results 1 to 10 of 11

Thread: Mixing Compounds?

  1. #1
    Forum User verified Feedback Score 2 (100%)
    Join Date
    Sep 2010
    Owner Since
    2008

    Location
    CT
    Posts
    481
    Thanks
    36
    Thanked 14 Times in 12 Posts

    Mixing Compounds?

    Part A: Any definitive answer on swapping out some race dedicated pads on race day, and using crappy auto parts store pads on a the street (daily driver) without changing the rotors?

    Part B: As a compromise, how long do the bobcats last on the street with an autocross every weekend or every other weekend? What about the AX6/bobcat combo?

    Racing is mostly autocross or similar, maybe one, maybe two, road course days a year.
    Last edited by x2percentmilk; 02-09-2011 at 12:07 AM.

  2. #2
    Now with more poop-smear Not Verified Feedback Score 8 (100%) IPD's Avatar
    Join Date
    Sep 2010
    Owner Since
    Not Anymore

    Location
    Georgia
    Posts
    6,664
    Blog Entries
    2
    Thanks
    484
    Thanked 547 Times in 393 Posts
    i'll leave this for someone more knowledgeable than i--though i do seem to recall hearing about people doing this without ill effect.

    dollars to doughnuts it only works for certain types of pads though. carbon/carbon setups won't work like that, i'm 99% certain.

  3. #3
    Forum User verified Feedback Score 2 (100%)
    Join Date
    Sep 2010
    Owner Since
    2008

    Location
    CT
    Posts
    481
    Thanks
    36
    Thanked 14 Times in 12 Posts
    Hmm I think you are right. After a little bit of searching I came across this stoptech article:

    StopTech : Balanced Brake Upgrades

    Seems it will be ok if you just make sure you bed them after you change them. Neat.

  4. #4
    Now with more poop-smear Not Verified Feedback Score 8 (100%) IPD's Avatar
    Join Date
    Sep 2010
    Owner Since
    Not Anymore

    Location
    Georgia
    Posts
    6,664
    Blog Entries
    2
    Thanks
    484
    Thanked 547 Times in 393 Posts
    well that's the thing, in my opinion, bedding is probably 80% "braking in" the pads & 20% making them work with the rotors.

    you might be able to squirrel on by if you follow the stealth 316 advice for bbq'ing your pads to "cook" the gasses out.

  5. #5
    Man vs 3/S verified Feedback Score 6 (100%) R/T93's Avatar
    Join Date
    Sep 2010
    Owner Since
    2003

    Location
    Kingston, WA
    Posts
    1,543
    Thanks
    124
    Thanked 173 Times in 114 Posts
    My ax6's wore through NEW rotors in less than a year...... 500 track miles, 10000 street miles (I am sure most of the wear was during street miles) Bullshit.

    However, the rotors arent wearing evenly at all, it might be my calipers not applying evenly. The outside of the rotors is probably worn 2mm more than the inside, I need to install my SCE wide kit before these ones become unsafe.
    93 R/T - Modded, Full Suspension, Full Exhaust, Quaife Diff, Turbo brakes, Alpine/Boston Sound One of 25
    98 VR-4 - Billet 13t's, Downpipe, Blitz EBC, Ohlins R/T coil overs, SCE center differential, SCE oil pan, Pampena braced trans, TEC Rear Strut Bar, Custom Front Strut Bar, Camber Arms, Alum Driveshaft, 2" Koyo, Maximal oil cooler, SAFC2, Defi Gauges, RC 550's, Supra Pump, Skillard Splitter, Hardpipes, XYZ 14" front brakes/Carbotech, 255 Dunlop Z2's, AMR 18x9's, Alpine/Infinity/JL Sound. One of 13

    3SNG15 Best overall




    "I explode 1 piece rotors" -- ABM --
    Runs 12's (12.98's!!!!!!)
    My Garage

  6. #6
    Forum User verified Feedback Score 2 (100%)
    Join Date
    Sep 2010
    Owner Since
    2008

    Location
    CT
    Posts
    481
    Thanks
    36
    Thanked 14 Times in 12 Posts
    Someone else mentioned the bobcats last a good long time, maybe ill just buy those and stick with them.

    As the only road course ill be hitting will be at NG and MAYBE one more, I think they will suffice.

    Have the rotors worn more than the pads? Do the pads look uneven as well? Id assume uneven wear is uneven caliper pressure like you mentioned. One of the caliper bolts seized on my rear brakes causing my pads to wear down so much the top of the pad looked brand new and the bottom of the pad was worn straight through to the shim. Id also assume a higher compound like that to wear alot on the street, so either is understandable, however sucky it may be :/ New rotors in 10000 miles is still surprising.

  7. #7
    Twin Turbo verified Feedback Score 5 (100%) GTOJOE's Avatar
    Join Date
    Sep 2010
    Owner Since
    2007

    Location
    Melbourne, Australia
    Posts
    2,155
    Thanks
    79
    Thanked 92 Times in 76 Posts
    Quote Originally Posted by inperfectdarkness View Post
    well that's the thing, in my opinion, bedding is probably 80% "braking in" the pads & 20% making them work with the rotors.

    you might be able to squirrel on by if you follow the stealth 316 advice for bbq'ing your pads to "cook" the gasses out.
    There was a thread a while ago that taked about htis. I believe Maxclass [or something like that] had a lot of good things to say and the bbq'ing thing is suppossed to be no longer relevant. Was used in the old days before they improved pad material.
    1990 JDM GTO TT with Vi-PEC plug-in V44 EMS, TD04-13T's, 3SX Downpipe, MP Hi-flow cat, ARC SMIC's, Aeromotive Stealth 340LPH pump, Fuelab 515 FPR, Ninja Performance 75amp hotwire kit, oohnoo fuel loop & rail adapters, Nylon braided ethanol fuel line, NGK AFX Wideband, K&N FIPK, Iridium plugs, HKS Twin Power DLI, Turbo XS racing BOV, 3SX poly mounts, Custom 280km/h speedo.

    Waiting install
    Injector Dynamics 725cc Injectors.

    Build Thread

  8. #8
    One day....it will be on 4 wheels. supporter Feedback Score 2 (100%)
    Join Date
    Sep 2010
    Owner Since
    2004

    Posts
    1,822
    Thanks
    154
    Thanked 37 Times in 30 Posts
    I've swapped between all sorts of pads in my car and had no problems...go nuts
    Building a House, Car Mods on hold!
    1996 GTO, Owner since 2003.

  9. #9
    Forum User Feedback Score 2 (100%) Maximal's Avatar
    Join Date
    Sep 2010
    Owner Since
    2001

    Location
    Avoca, NY
    Posts
    1,247
    Thanks
    7
    Thanked 58 Times in 40 Posts
    It really depends on the pads and the compounds. I run carbotechs and they do allow switching between their compounds but not with other brands...basically it comes down to the base compound.

    Rotors are not crazy expensive so it might be best to just get a set of rotors to go with each set of pads. What I'd do is run Carbotech AX-6's on the street and XP-8's on the track. With that I never had an issue with the different compounds. You just have to bed the brakes everytime you swap compounds.

  10. #10
    Forum User verified Feedback Score 2 (100%)
    Join Date
    Sep 2010
    Owner Since
    2008

    Location
    CT
    Posts
    481
    Thanks
    36
    Thanked 14 Times in 12 Posts
    Yeah I'm definitely going to run carbotechs, so I guess the autozone swap is out of the question. I think for the time being bobcats will hold up on the street/autocross, and if I find myself doing some more road courses then anticipated ill look into getting some AX6's or XP8's.

    Also, ill be responding to that PM soon maximal.

Page 1 of 2 12 LastLast

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
The 3000GT/Stealth/GTO Web History Project
3000gt.com
3000GT / Stealth International WWWboard Archive
Jim's (RED3KGT) Reststop
3000GT/Stealth/GTO Information and Resources
Team 3S
3000GT / Stealth / GTO Information
daveblack.net
3000GT/Stealth/GTO Clubs and Groups
Michigan 3S
MInnesota 3S
Wisconsin 3S
Iowa, Nebraska, Kansas 3S
North California 3000GT/Stealth
United Society of 3S Owners
3000GT/Stealth/GTO Forums
3000GT/Stealth International
3000GT/Stealth/GTO Event Pages
3S National Gathering
East Coast Gathering
Upper Mid-West Gathering
Blue Ridge Gathering