Speed3 Rotors on 2007 non-Speed3 hatchback? - Mazda3Club.com : The Original Mazda3 Forum
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Old June-12th-2017, 02:41 PM   #1
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Speed3 Rotors on 2007 non-Speed3 hatchback?

Hey All,

Apparently I drive aggressively (heh) and I have a tendency to warp my Mazda3 2007 hatch front rotors easily.

I was thinking of stepping the front brake set up a notch by running steel braided lines and upgrading to the Mazda Speed 3 rotors for a tad more braking power.

The stock Mazda3 hatch rotors are 10.6" diameter and the Speed 3 rotors are a smidge over 11" (Yes—I'm aware I need the Speed3 caliper and caliper bracket to run the slighly larger Speed3 rotors.)

Here's my question.

The stock Speed3 rims are 18", and I'm running some Motegi aftermarket 17" rims on my 07' hatch. It "looks" like there's going to be enough clearance to upgrade to the stock Speed3 rotors/calipers, but I was wondering if there was anyone else out there who did this upgrade? ..and are you running 16", 17", or 18" rims??

Thanks!
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Old June-18th-2017, 12:53 PM   #2
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Old June-18th-2017, 01:05 PM   #3
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Thanks for sharing! Very interesting. I'll bed in the new set (due for replacing anyway) and see if it makes a difference.



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Old June-18th-2017, 08:48 PM   #4
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I have also found that going for a quick fang running some highly metalized sintered, street legal. track day type pads also deglazes the disks and gets rid of the "warping". I keep a set of these pads specifically for this use but run normal pads the rest of the time. These pads are extremely abrasive and if used all the time would soon take the rotor down to its minimum thickness. You would not want to run them all the time. Note this is not on a Mazda 3 but on larger Oz made Ford Falcons and Fairlanes and on a Mitsubishi LC Lancer (same as the Plymouth Arrow in the US).

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