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Thread: corolla cross drilled brake rotors

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    jz
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    Default corolla cross drilled brake rotors

    www.facebook.com/performancepartslahore

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    Quote Originally Posted by revengez View Post
    But when moving downward hill with too much breaking or even in local driving, by few repeated hard stops brake system get heated and unable to perform effectively. Ceremic brakes can be used to avoid this situation.
    you seem to me a beginer, mentioned whatever heard from here there. corolla is not supposed to be a car made for speed and needs precise breaking system. gear stick is also there to help you handle your car beter.

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    Quote Originally Posted by VCheng View Post
    To get back on topic, let me ask this question:

    What are the improvements that you are looking for from the stock setup that you have on now? In other words, what deficiencies in the stock setup have you noticed that you would like to improve.
    bro the issue is that the brakes donot perform when they get hot,as compared to braking after first start up braking the braking all day long is worse,i think its because after first start up n itnitial braking the brakes are cold hence they perform better
    www.facebook.com/performancepartslahore

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    @jz: why changing only the disc or performance brake pads....one of my friends have 2zzge rolla like ur shape with big brake kit...4 pot calipers i think....try to get 4 pot calipers brakes from xrs corolla or 2zzge celica gts...btw u cant used 15inch rims on these big brakes kit
    My lugnuts require more torque than your Vtec can put out...

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    Quote Originally Posted by jz View Post
    bro the issue is that the brakes donot perform when they get hot,as compared to braking after first start up braking the braking all day long is worse,i think its because after first start up n itnitial braking the brakes are cold hence they perform better
    How "hot" are we talking here? Please give me some tangible numbers: How many stops from what speed are you making before you notice this loss of performance?

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    Quote Originally Posted by jz View Post
    bro the issue is that the brakes donot perform when they get hot,as compared to braking after first start up braking the braking all day long is worse,i think its because after first start up n itnitial braking the brakes are cold hence they perform better
    Sorry just read the first post again.



    I had a 04 SE Saloon, I couldn't do much about its bad brakes but what I found out was that its rear tyres didn't get enough braking force when applied. Don't know the solution or 'fix' for this but since you're an Einstein as well, I'm sure you can test.
    I confirmed my diagnosis by applying handbrake a little when braking and it used to stop much much better.. Tried that many many times and felt a huge difference, of course one cannot do this in normal driving and at any given panic braking attempt so there might be a way to 'fix' the 'issue'.

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    Quote Originally Posted by gradeH View Post
    you seem to me a beginer, mentioned whatever heard from here there. corolla is not supposed to be a car made for speed and needs precise breaking system. gear stick is also there to help you handle your car beter.
    Well ur observation that I am a begginer is simply out of scope and also Its just useless to tell me that corolla is not for speed and also gear stick is there to handle your car better.

    And the reason I am arguing here with Xulfiqar or any other member is not to prove them wrong. I just want to make things clear to myself what I heard from here and there as per U.

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    Quote Originally Posted by Xulfiqar View Post
    thats because you are supposed to use engine brake assist when going downhill.
    Yes but I wrote just to explain ceremic brakes performance. When using normal brakes - definitely engine assistance is required when moving downhill.

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    Quote Originally Posted by syncview View Post
    Sorry just read the first post again.



    I had a 04 SE Saloon, I couldn't do much about its bad brakes but what I found out was that its rear tyres didn't get enough braking force when applied. Don't know the solution or 'fix' for this but since you're an Einstein as well, I'm sure you can test.
    I confirmed my diagnosis by applying handbrake a little when braking and it used to stop much much better.. Tried that many many times and felt a huge difference, of course one cannot do this in normal driving and at any given panic braking attempt so there might be a way to 'fix' the 'issue'.
    Check the rear proportioning valve for proper operation if the rear brakes are not doing their correct share of the work in braking.

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    Quote Originally Posted by VCheng View Post
    To get back on topic, let me ask this question:

    What are the improvements that you are looking for from the stock setup that you have on now? In other words, what deficiencies in the stock setup have you noticed that you would like to improve.
    Its a corolla what more do you need to know

    Quote Originally Posted by VCheng View Post
    Check the rear proportioning valve for proper operation if the rear brakes are not doing their correct share of the work in braking.
    again, its a corolla, nothing can be done

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    ^^ The above problem was also faced by the notorious Shehzore owners, its brake prop valve is angle related, meaning it will release the rear brakes when the rear unloads (hard braking).

    These chaps had installed heavier leaf springs in their trucks which raised it and then swayed with the smallest load, Similarly nearly all local corollas are lifted from the back due to CNG, which causes the rear beam axle to swing out of range sometimes.
    ZRS - Zulfiqar Racing Systems ..... - professionals at work - at crackwheels.com

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    Corollas have a very well designed braking system. These issues are not typical.

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    Quote Originally Posted by VCheng View Post
    Corollas have a very well designed braking system. These issues are not typical.
    catch a flight come to pakistan and have a test drive , dont know about design but i have heard complains of corolla's brakes every where. In some regions corolla still have front disks only
    RIP

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    Quote Originally Posted by qwertypoiu View Post
    catch a flight come to pakistan and have a test drive , dont know about design but i have heard complains of corolla's brakes every where. In some regions corolla still have front disks only
    Sure, I will do that on my next trip over.

    However, even disc/drum combos on Corollas are effective brakes. Bad quality pads, rotors, fluid and/or poorly gripping tires may be to blame too, but whatever the problem, I am sure it can be fixed.

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    Quote Originally Posted by VCheng View Post
    Sure, I will do that on my next trip over.

    However, even disc/drum combos on Corollas are effective brakes. Bad quality pads, rotors, fluid and/or poorly gripping tires may be to blame too, but whatever the problem, I am sure it can be fixed.
    yep - the US corollas with front discs and rear drums are quite good in braking. They dont suffer from raised rear ends like in Pakistan.
    ZRS - Zulfiqar Racing Systems ..... - professionals at work - at crackwheels.com

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    Quote Originally Posted by Xulfiqar View Post
    yep - the US corollas with front discs and rear drums are quite good in braking. They dont suffer from raised rear ends like in Pakistan.
    So WHY are the rear ends of the PDM Corollas so high?

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    Quote Originally Posted by VCheng View Post
    So WHY are the rear ends of the PDM Corollas so high?
    ground clearance - and CNG installations after which owners shim the rear springs to make up for the lost clearance and end up in a situation where the suspension geometry is incorrect.
    ZRS - Zulfiqar Racing Systems ..... - professionals at work - at crackwheels.com

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    Quote Originally Posted by Xulfiqar View Post
    ground clearance - and CNG installations after which owners shim the rear springs to make up for the lost clearance and end up in a situation where the suspension geometry is incorrect.
    Ah I see!

    So why blame the car when it is this aftermarket buggery at fault?

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    Quote Originally Posted by VCheng View Post
    Ah I see!

    So why blame the car when it is this aftermarket buggery at fault?
    Welcome to Pakistan
    ZRS - Zulfiqar Racing Systems ..... - professionals at work - at crackwheels.com

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    I don't think you'd need cross drilled rotors or anything. I'd suggest getting an abs system (or the whole brakes assembly) off of a japanese corolla X. I drive an altis, which has essentially the same brakes as yours minus the ABS, and no complaints yet.
    In my opinion, an ABS add on and coilovers (kabli would suffice) should make a difference and provide you with more appropriate braking power.
    248/216-26

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    ABS only prevents wheel lockup. The basic brakes need to be working properly for the ABS add-on to work well.

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