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aw11 slotted rotors

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adamaw11
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2013/12/02 20:56:19 (permalink)
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aw11 slotted rotors

Hi all.
 
I'm looking to get some new front rotors.
 
Looks like RDA do a drilled/slotted rotor for the aw11.
 
Anyone have recommendations as to where to get them.
 
Can the RDA ones stand up to a bit of track abuse? I've heard they're a little cheap and end up with brake shudder, but don't know of how they are for an aw11.
 
I thought DBA used to do slotted rotors?
 
any other recommendations?
 
Adam.
 
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7 Replies Related Threads

    Paw11
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    Re: aw11 slotted rotors 2013/12/02 22:25:50 (permalink)
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    Steer clear of anything drilled as they tend to develop cracks around the holes if you get them real hot. The RDAs are ok if you use decent pads but I reckon they are are pretty expensive. I got Protex discs for under $40.00 each - they are not drilled or slotted but they should still be ok for track days with a good pad. (I am using QFM A1RMs). I kind of question how much real difference the slots make anyway. I will let you know more once I have had them on the track. They are good on fast road though.
    Peter
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    adamaw11
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    Re: aw11 slotted rotors 2013/12/02 23:24:11 (permalink)
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    Thanks for the info, interested to know how they are on the track anyway..
    I never really had trouble with my standard ones, but they are quite worn now, with a decent lip on them.
     
    Looks like EBC do aw11 rotors also.
    #3

    maj
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    Re: aw11 slotted rotors 2013/12/03 09:31:19 (permalink)
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    RDA/EBC brakes are the same thing. I haven't heard anything bad from the AW11 community (especially those who do track days) with the slotted rotors. The only alternative is to find more exotic brands like Dixcel or Project Mu's.
     
    Best place to get them would be Gorilla Industries (who are on this forum), they can sort you out with a set for a really good price. You can sometimes find them cheaper elsewhere, but for reassurance and professionalism I wouldn't go past the Gorilla guys.
     
    Fronts are RDA750S (or RDA750D for slotted AND dimpled)
    Rears are RDA751S (again change the "S" for "D" to get dimpled)
     
    A few of the guys swear by EBC redstuffs on the rear, and either greenstuffs or yellowstuffs on the front, depending on how much practicality you need for daily driving (yellows can be a bit scary when cold, but otherwise are much better once warm).
     
    I've also heard good things about the QFM A1RM's, but no one has admittedly taken them to as many trackdays as EBC's, apparently they bite just as hard if not better, but their durability is still questionable. At the price they are though, I don't see that as being much of an issue.

    --
    "Autodub" - 1987 AW11 G-Limited, Dark Blue Mica 4AGZE T-Top 4EAT
    MY15 BRZ Special Edition + STi muffler, Coil Springs, Tower Strut, Wheels & Sound Tube!
    #4
    MCT_MR2
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    Re: aw11 slotted rotors 2013/12/05 22:11:19 (permalink)
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    I wouldn't call dixcel exotic, they are the jap equivelant of dba. youd be after SD rotors, the heat treated rotors are great, but a little overkill. on the dixcel aust website they are listed at 240 a pair. garage 88 is the australian distributor, you could call/email them for a price

    '88 MR2 4AGTE W/ EFR6258

    224.6KW @ 20PSI

    more to come......
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    maj
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    Re: aw11 slotted rotors 2013/12/06 09:03:24 (permalink)
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    Exotic as in they are an overseas brand and not very common in Aus (not as in they're made of unobtainium), but yes Garage 88 would definitely be the best place to go to for them.
     
    Personally I like the idea of matching brands when it comes to rotors and pads, because you have assurance the compound isn't going to warp the rotor quickly. I know it sounds strange but I've known about quite a few cases where this has occurred in performance applications, outside the realm of providing pads "to meet OEM specifications".
    If you want trackday capable brakes, you need to accept this is a risk.

    --
    "Autodub" - 1987 AW11 G-Limited, Dark Blue Mica 4AGZE T-Top 4EAT
    MY15 BRZ Special Edition + STi muffler, Coil Springs, Tower Strut, Wheels & Sound Tube!
    #6

    ZEROGK
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    Re: aw11 slotted rotors 2013/12/06 13:06:49 (permalink)
    +2 (2)
    I used slotted RDA rotors on my car with a few different kinds of pads, never had any problems (apart from adub brakes sucking in general). No warping or shuddering. Still using them on the rear but front has been upgraded now
    #7
    adamaw11
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    Re: aw11 slotted rotors 2014/01/12 18:21:41 (permalink)
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    I ended up getting RDA standard rotors ($100 for the two fronts), and EBC Ultimax pads. They seem good, although I've only driven ~100ks on them, and I think it still hasn't worn past the wear-in part of the pad. They seem a little less grabby - especially when cold.
    #8
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