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increased brake sensitivity during mid-corner braking

Discussion in '2nd Gen. Tacomas (2005-2015)' started by tacomavan, Jun 27, 2019.

  1. Jun 27, 2019 at 7:46 AM
    #1
    tacomavan

    tacomavan [OP] Well-Known Member

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    going through mid corner and initiating braking mid-corner during a somewhat spirited turn, brake pedal sensitivity seems to go up noticeably. Seems to engage higher up in the pedal as well

    anyone else notice this? doesn't happen if brakes are engaged prior to turn and continuing through it. Doesn't seem to happen at slower speed turns as well

    everything else feels fine though
     
  2. Jun 27, 2019 at 7:57 AM
    #2
    PzTank

    PzTank Stuck in the Well

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    Above the Notches
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    ‘07 OR leather shift knob
    Not supposed to initiate braking mid corner...
    1. Keep speed up heading towards the corner;
    2. Brake hard as you enter the corner;
    3. Proportionally lessen brakes as you add steering angle to the corner apex while keeping optimal speed;
    4. Accelerate out of the corner.
    Vehicle should be kept leveled and balanced throughout the corner.

    Picture a 1/4 full water bottle held sideways- proper performance corner braking should minimize water sloshing.

    Google “Trail Braking” for more info. (No, it’s not about off road braking...)

    Have fun, be safe.
     
    Last edited: Jun 27, 2019
    TReD Fox and llamasmurf like this.
  3. Jun 27, 2019 at 9:45 AM
    #3
    nd4spdbh

    nd4spdbh Well-Known Member

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    OP, what year, model, and config of truck do you have.... ie 2013 TRD OR 4x4?
     
  4. Jun 27, 2019 at 9:57 AM
    #4
    mbrogz3000

    mbrogz3000 Well-Known Member

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    I wouldn’t be surprised if the VSC became pre-queued to kick in for that condition (speed, steering wheel angle, ground relative angles of the truck, ambient temp, etc) the vehicle was put into for that scenario. The VSC and braking sort of take over as much as possible to slow down and regain control, if the rear end starts to oversteer.

    I’ve noticed that if you ‘check enough boxes’ while driving, sometimes the brakes are on a hair trigger and ready for immediate abs braking.
     
    Last edited: Jun 27, 2019
  5. Jun 27, 2019 at 4:25 PM
    #5
    tacomavan

    tacomavan [OP] Well-Known Member

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    appreciate the feedback, i do have 10 years track driving experience including 5 in a spec miata. This type of braking is well within the capabilities of the vehicle and not being done in an unsafe manner.

    @nd4spdbh i have 6112(#3)/5160's on a 2014 SR5 4x4 v6 DCLB, general spring HD rear spring. about 1.5" all around

    @mbrogz3000 that's what it seems like. And its pretty consistent and can be recreated. Trucks feels fine underfoot otherwise, no sliding or anything. Just feels like the truck is anticipating needing a sensitive brake.
     
    PzTank[QUOTED] likes this.
  6. Jun 27, 2019 at 5:07 PM
    #6
    nd4spdbh

    nd4spdbh Well-Known Member

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    Reason I asked is 09+ TRD OR 4x4's have a different braking system than the rest. You have a standard vacuum actuated master cylinder with separate ABS unit, Typically i see more complaints about the VSC / ABS on these trucks than a truck like mine with the electric boosted all in one master cylinder abs/traction control unit. That stated, your brakes are FAR less sensitive than a truck equipped with the electric boosted setup.
     
  7. Jun 27, 2019 at 7:17 PM
    #7
    TegoTaco

    TegoTaco Well-Known Member

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    It happens to me as well. :)
     
  8. Jun 27, 2019 at 7:22 PM
    #8
    Sharpish

    Sharpish Well-Known Member

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    Trail braking is scary. Here's what I used to do when I had fast cars. (No point in the truck)

    100% throttle accelerating as you approach the corner.

    Brake hard, heel and toe downshift once or twice as you move to the outside.

    Coast into the corner with no braking and moderate throttle, no acceleration, turn down and cut to the bottom of the apex.

    As you come out of the apex stomp the throttle as much as possible without spinning while coming up to the outside again.
     
    PzTank[QUOTED] likes this.

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