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04-25-2012, 12:02 PM | #1 |
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Big Brake?
Front brake only ???? This is what is listed for performance accessories for 2013 FRS.
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04-25-2012, 05:04 PM | #2 |
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Don't need it.
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04-26-2012, 11:19 PM | #4 |
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For a cheaper easy upgrade, just slap on some 06-07 WRX front calipers. They're 4pot and will most likely fit behind the stock wheels with no spacer, and you retain the oem rotor so you save money there.
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04-27-2012, 12:14 AM | #5 |
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04-27-2012, 12:35 AM | #6 |
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From strictly an styling point of view it really needs the back brake too. Check out the TRD GT - 86.
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04-27-2012, 01:25 AM | #7 | |
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Yeah, but IMO, 6 piston fronts and 4 piston rears is a little overkill on these cars. Not to mention you'd had to use 18" wheels which these cars weren't really designed for.
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04-27-2012, 02:24 AM | #8 | |
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04-27-2012, 03:01 AM | #9 |
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As pointed out in a few other threads, this is an issue with Brembos but not FHI/Nissan 4 pots. In any case, the FHI/Nissan units won't be an upgrade.
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04-27-2012, 03:05 AM | #10 | |
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04-27-2012, 03:12 AM | #11 |
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FHI 4pots aren't differential bored. Brembos are.
You can flip FHI units left/right to get the right bleeder orientation and they'll work fine. Brembos won't. Furthermore, Ken@KNS Brakes aka WRX Brakes now carries rear adapters that locate the rear FHI 2 pots to the 08+ WRX knuckle assembly. Theoretically, one could take the FHI 4/2pot setup and place it on the BRZ (if the rear suspension is lifted entirely out of the WRX, as was suggested in an earlier thread). Again, the FHI 4/2 setup provides no heat capacity over stock; only increased modulation of the pedal and more rearward bias (at least, in the WRX it moves bias rearward). |
04-27-2012, 03:22 AM | #12 |
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I see what you are saying about fitment, but then to claim that they are not an upgrade is certainly speculative. I would be willing to bet that the 4/2 setup will out-brake and outperform a stock setup, any wagers?
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04-27-2012, 03:26 AM | #13 |
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I'll take that wager.
Most people move to larger brakes due to fade; they require more heat capacity for repeated sessions at the track. These are WRX sliders on a car that weighs 400-500lbs less, they won't be as prone to fade as they are on that pig. The sliders are woefully undersized for 3300-3400lbs of AWD grip, not so much a 2762lb runabout. The 4/2 units are iron, and as such, likely weigh more than the sliders while using the exact same rotors front and rear. The additional unsprung mass, from the calipers, at all four corners will offset the gains from playing with bias and modulation methinks. Regardless, I would consider it a waste of money. The proper first step is new pads, lines, and fluid. Then talk about bigger brakes...where keeping the same size rotors is by and far, not the point. The bias on the early WRX was very nearly 70/30. FHI 4/2 were a tremendous upgrade in that they moved bias rearward and made the pedal stiff as tits instead of squishy like bread. The pedal here, in the BRZ, is already stiff; moving to the 4pot setup is a waste of time, IMHO. |
04-27-2012, 05:10 AM | #14 |
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You cant know how stiff the pedal will feel until you start really pushing it. You also cant deny that you will gain a great amount of feel from these, as the newer WRX guys still benefit from them on more recent models.
Tires,pads,lines,fluid,master cylinde/brace, + duct work would really seal the deal. I think they weigh less; and with the sliding pads they are easier to swap in/out, and have more aftermarket options. Its not all too pricey either, especially considering the nice benefits of a compromise between street and performance driving. |
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