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  1. #1
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    Jan 2007
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    central coast, NSW
    Car:
    crx
    Quote Originally Posted by lil_foy View Post
    lol, you're still going to have the same braking as a dc2r/ek9 setup with the rx7 calipers, all you'll have is better heat control and more even pressure across the pad.
    I would say less than dc2r/ek9 as you going have less surface area but as you said lil_foy tiny bit better heat control and better brake pressure

    I know dc2r/ek9 brakes are cast iron, heavy
    Are rx7 brakes alloy? Bit lighter?

    That the only reason I do it (less upsprung weight) but then again I would just stay with 262mm da9 setup I have atm with good pads and disc
    In you case it upgrade ek4 262mm
    enough said by me but ask all the k series eg ad ek what brake use most will say dc2r setup
    If you see a good Technical post giving advice give some postive rep

  2. #2
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    Feb 2008
    Location
    Brisbane
    Car:
    Dc2 + EG
    Quote Originally Posted by pat88c View Post
    I would say less than dc2r/ek9 as you going have less surface area but as you said lil_foy tiny bit better heat control and better brake pressure

    I know dc2r/ek9 brakes are cast iron, heavy
    Are rx7 brakes alloy? Bit lighter?

    That the only reason I do it (less upsprung weight) but then again I would just stay with 262mm da9 setup I have atm with good pads and disc
    In you case it upgrade ek4 262mm
    enough said by me but ask all the k series eg ad ek what brake use most will say dc2r setup
    I personally use a 282 dc2r setup with good pads and rotors, they overpower my tyres (205 RSR) so easy, personally I doubt he'd be using the extra heat benifits anyways.

    OP just get some crv/prelude calipers (same as dc2r) and some decent rotors and pads, they will function just as good as rx7 brakes and you'll have less mucking around trying to get them to fit.

  3. #3
    Quote Originally Posted by lil_foy View Post
    I personally use a 282 dc2r setup with good pads and rotors, they overpower my tyres (205 RSR) so easy, personally I doubt he'd be using the extra heat benifits anyways.

    OP just get some crv/prelude calipers (same as dc2r) and some decent rotors and pads, they will function just as good as rx7 brakes and you'll have less mucking around trying to get them to fit.
    You don't have to doubt about I am not using the extra heat benefits. I can tell you now. I will and I need it. I don't drive like a gran mum. People who know me in personal. They know how I drive.

  4. #4
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    Feb 2008
    Location
    Brisbane
    Car:
    Dc2 + EG
    Quote Originally Posted by xeno View Post
    Rx7 calipers setup same as a dc2r/ek9 setup. I don't know about that. I believe no one in here had a Rx7 calipers setup. So how do you found out they're the same performance. Have you found out a link in the net, some one already done a test for it? please link up here if you do. So everyone can see it Thank. I do agree it going to be better heat control and more even pressure across the pad.
    You're using a 282 rotor still, you're still going to have the same rotational torque, and as someone stated, rx7 pads have less surface area apparently anyways..

    Quote Originally Posted by xeno View Post
    You don't have to doubt about I am not using the extra heat benefits. I can tell you now. I will and I need it. I don't drive like a gran mum. People who know me in personal. They know how I drive.
    Im curious, what setup do you have atm, what engine combo do you have? I doubt you'd be able to push a dc2r setup to the limit tbh.

  5. #5
    Quote Originally Posted by lil_foy View Post
    You're using a 282 rotor still, you're still going to have the same rotational torque, and as someone stated, rx7 pads have less surface area apparently anyways..


    Im curious, what setup do you have atm, what engine combo do you have? I doubt you'd be able to push a dc2r setup to the limit tbh.
    You don't have to doubt I cannot push the dc2r setup to the limit, beside you don't need big power to push the brake system. I race my Rx7 Fc on the track. I know how to push the brake to the limit. As I said before, I did tried the Ek4 with Ek9 brake setup. I know how good are they.

    The Rx7 brake pad had less surface area than the Dc2r surface area because it doesn't need it. During the number of pistons difference, if you know what I mean. Put in this way, I see a lot of Aftermarket upgrade 4,6,8 pistons calipers kit. I never see a Aftermarket Large single piston caliper upgrade kit. If you can find it, let me know. I don't think there are many.

    Just like I pointed out earlier before, the Rx7 calipers was design for a heavier car plus the car had a turbo. I really don't see why the Rx7 setup going to be worst than the Ek9/Dc2r setup. Just common sense.

  6. #6
    Member Array
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    Feb 2008
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    Brisbane
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    Quote Originally Posted by xeno View Post
    You don't have to doubt I cannot push the dc2r setup to the limit, beside you don't need big power to push the brake system. I race my Rx7 Fc on the track. I know how to push the brake to the limit. As I said before, I did tried the Ek4 with Ek9 brake setup. I know how good are they.

    The Rx7 brake pad had less surface area than the Dc2r surface area because it doesn't need it. During the number of pistons difference, if you know what I mean. Put in this way, I see a lot of Aftermarket upgrade 4,6,8 pistons calipers kit. I never see a Aftermarket Large single piston caliper upgrade kit. If you can find it, let me know. I don't think there are many.

    Just like I pointed out earlier before, the Rx7 calipers was design for a heavier car plus the car had a turbo. I really don't see why the Rx7 setup going to be worst than the Ek9/Dc2r setup. Just common sense.
    Have you ever driven a car on the track with a dc2r setup? And what rotor/pad combo are you thinking of running in the rx7 setup?

    You do realise that more pistons in a caliper doesnt mean you're going to stop faster, it will give you more even pad distribution which may have a slight positive effect on braking, in saying that, you'll be running less pad surface area so you'll have less braking capability from that alone. The reason alot of oem parts are single sliding design is cost, its cheaper to make then a multi pot caliper.

    You do realise that the dc2r uses the exact same caliper as a CRV, Prelude, Ek9, Odyssey, etc. Many of which weigh more then a dc2r. An nsx also uses the EXACT same pad as a dc2r and they also use a 282 rotor as well.
    If you'd like to give me an explanation of how dc2r 282 setup running the same rotor and pad compounds as a rx7 setup is going to stop slower then a Rx7 setup, then please, i'm all ears, but logically if you have 282mm of rotor you're only going to have X amount of rotational force, if you want more get a larger rotor or better rotor/pad. You just seem like a typical blind fanboy imo.

    Most important out of any of this is can your tyres hold up to the extra braking? (what tyres are you using?)

  7. #7
    Quote Originally Posted by lil_foy View Post
    Have you ever driven a car on the track with a dc2r setup? And what rotor/pad combo are you thinking of running in the rx7 setup?

    You do realise that more pistons in a caliper doesnt mean you're going to stop faster, it will give you more even pad distribution which may have a slight positive effect on braking, in saying that, you'll be running less pad surface area so you'll have less braking capability from that alone. The reason alot of oem parts are single sliding design is cost, its cheaper to make then a multi pot caliper.

    You do realise that the dc2r uses the exact same caliper as a CRV, Prelude, Ek9, Odyssey, etc. Many of which weigh more then a dc2r. An nsx also uses the EXACT same pad as a dc2r and they also use a 282 rotor as well.
    If you'd like to give me an explanation of how dc2r 282 setup running the same rotor and pad compounds as a rx7 setup is going to stop slower then a Rx7 setup, then please, i'm all ears, but logically if you have 282mm of rotor you're only going to have X amount of rotational force, if you want more get a larger rotor or better rotor/pad. You just seem like a typical blind fanboy imo.

    Most important out of any of this is can your tyres hold up to the extra braking? (what tyres are you using?)
    First thing first, I never said the dc2r setup going to stop slower than the Rx7 setup. Don’t put word in my month. I don’t have that knowledge to said which one going to better performance I take the Dc2r brake setup info and the Rx7 brake setup info to a qualifier brake engineering guy and he said the Rx7 setup better, not me but to be fair.
    I think in the cars modifiers world even same setup, one made make better performance than other. I see that a lot of time. Without two setup side by side put it into the same car, do a road test. No one can said which one going to be better.

    A lot of guys in here must ask. Why I choose Rx7 calipers conversion. I got a Rx7 and I race on the track and I find oem setup they had brake fade after I finish one track day (brake pads is cross over pad, not a race pad) I was happy with the oem performance. If I’m not going to the track, the oem setup is more than enough for the street. I bought a (RE-Amemiya racing calipers make by Brembo) with App 335mm light weight 2 pieces rotors for my 7. Rx7oem brakes going to civic.

    I didn’t drive a car with dc2r brake setup, but I did race with a Dc2r on the track with my 7 oem brake. 200km down straight side by side brake in to the corner. We nearly brake in the same time. I was driving inside lane. I had to brake harder before I can get grip on the tyres to take the corner. That my experience. If you going to ask me Is he a good driver or what brake pads did he use or what engine mod did he do. Answer is I don’t know, all I know is the car got strip out interior, got a roll cage and we both using semi slick and his car is lighter than my car.

  8. #8
    Quote Originally Posted by pat88c View Post
    I would say less than dc2r/ek9 as you going have less surface area but as you said lil_foy tiny bit better heat control and better brake pressure

    I know dc2r/ek9 brakes are cast iron, heavy
    Are rx7 brakes alloy? Bit lighter?

    That the only reason I do it (less upsprung weight) but then again I would just stay with 262mm da9 setup I have atm with good pads and disc
    In you case it upgrade ek4 262mm
    enough said by me but ask all the k series eg ad ek what brake use most will say dc2r setup
    I when to the brake engineering shop today, and I did ask him about the size of the two difference brake pads, is going to be much difference in performance. He look at me and said "No". He said "about the same". But he also said "single piston vs 4 pistons". He go for 4 pistons any day.

    Weight difference I don't know. Just not really interest me, but I can found out for you.

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