Question about 2003 Nissan 350Z

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I got a 350z 2003 and i change my 4 calipe for the one on the skyline r33...everything looks fine but it look like im not having the maximum of brake pressure...my question is do i have to change my master cylinder because now i have the one that is stock w/o brembo...

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  • Yannick Hurtubise Apr 08, 2011

    Cool that help me a lot but wich master cylinder should i buy?

  • Yannick Hurtubise Apr 08, 2011

    Ok cool that help me a lot but where can i get the good master cylinder and wich one is the good one

  • Yannick Hurtubise Apr 08, 2011

    And do i have to change the metering valve?

  • Yannick Hurtubise Apr 09, 2011

    10/10 wowwwww

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  • Master
  • 1,654 Answers

Could you describe this a little better for me? I am not getting all of your question. But if your asking if you need to change the master cylinder just because you changed the cali[pers then I would say no, this is not ususall or required. What you may need to do is bleed the brake calipers several times to get the air out of the system and good clean fluid to the brakes. Do you need help with this step?

Posted on Apr 08, 2011

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  • Dcramer531
    Dcramer531 Apr 08, 2011

    When you upgrade to larger brake calipers your brake pedal movement may increase because more brake fluid has to be moved to power the bigger (or more) pistons. Upgrading to a bigger master cylinder (MC) can bring the pedal movement and feel back to stock (or better than stock). The stock master cylinder is 15/16" in diameter, and an upgrade 1" in diameter and about 1/4" longer. That 1/16 of an inch larger piston pushes quite a bit more fluid. After I did this mod my brake pedal was firmer and it required less pedal effort to lock the brakes. I'm very happy with this upgrade.

    The only difficult part of this mod is the fabrication of two 12 inch lengths of brake line which can be done pretty easily if you have a pipe cutter and pipe double-flare tool. You can always take the master cylinder to a brake shop and have them fabricate and install the brake lines. You can do everything else and save some cash.

  • Dcramer531
    Dcramer531 Apr 08, 2011

    Here is a comparison

  • Dcramer531
    Dcramer531 Apr 08, 2011

    I would love to help you pick out a master cylinder but Thats a personal choice. I will look at a couple and lead you in the directions you need but I don't feel comfortable deciding that for you. As far as metering valve I have not had to change these out before.

  • Dcramer531
    Dcramer531 Apr 08, 2011

    Looking around I see that most brake conversions for this car really don't reguire a master cylinder upgrade, and you can get calipers that use the exsisting master cylinders. But since you went with Brembro, I suggest the Brembo master cylinder or at least one that is comp-atible with these brakes. I found some of these at the link below under brakes. Basically all you should need is a stock mastwer cylinder with a slightly bigger bore that the one you have, you don't need a big fancy name brand.

  • Dcramer531
    Dcramer531 Apr 08, 2011

    www.theautopartsshop.com/auto+car-usa/nissan+350z.html
    Here is where I found the brembo compatible cylinders.
    You might have better luck at the local parts store, they may have more models and information for your car.

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