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It's brake time!

Discussion in 'Gen 3 Prius Accessories and Modifications' started by toyotechwv, Jul 20, 2012.

  1. toyotechwv

    toyotechwv Toyota Technician

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    Oh yeah :cool:

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  2. gliderman

    gliderman Active Member

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    How many miles?
     
  3. toyotechwv

    toyotechwv Toyota Technician

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    18k LOL. Not replacing due to wear. Performance increase for autocross. Loved these on my 2nd gen.

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  4. xliderider

    xliderider Senior Member

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    Aw, I was expecting a big brake kit or a retrofit from a RAV4 or something. ;)
     
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  5. toyotechwv

    toyotechwv Toyota Technician

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    LOL not yet. Only pads are allowed in stock class, trying to build to the max in this class. K&N filter, front sway bar, pads, alignment, sticky tires. You can change dampers too so some PIP struts and shocks will be next.

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  6. PriusCamper

    PriusCamper Senior Member

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    Interesting... What type of advantage (other than high temp performance) do Hawk HPS pads offer?
     
  7. floppyedonkey

    floppyedonkey New Member

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    I would assume if you could change stock rotors to something else, but keep stock size would be more of a performance increase than pads. Not to mention stock rotors and pads are suppose to last for a lot more miles that other cars.
     
  8. toyotechwv

    toyotechwv Toyota Technician

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    Pads make much more difference than simply replacing rotors.

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  9. The Critic

    The Critic Resident Critic

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    What improvements do you get from the PiP dampeners?
     
  10. VegasPrius2010

    VegasPrius2010 Junior Member

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    Hey Toyotech, have you seen the KSport BBK's? I was wondering if that weren't a viaoble option, then if it were possible to get a BBK from a Scion TC or something. Your thoughts?
     
  11. floppyedonkey

    floppyedonkey New Member

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    So slotted or drilled, lightened rotors wouldn't make a difference? I'm not sure about that one at all.
     
  12. mrstop

    mrstop PWR Mode

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    No slotted, or drilled rotors don't make a difference unless you are doing serious high speed track days (probably more than the Prius is capable of). They are more bling in application. I have read where there is some concern on drilled rotors weakening the rotor.
     
  13. floppyedonkey

    floppyedonkey New Member

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    Remember his application is for Autocross. The difference slotted or "properly" drilled rotors can make, and I can't emphasis lightened rotors enough makes a huge difference. I understand this community is a little slow to pick up on modifications, but trust me from the Z community to this and specfically the details in this thread... oh man its simple math you guys can compute it.... asides MPG.
     
  14. toyotechwv

    toyotechwv Toyota Technician

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    Slotted and drilled rotors don't make a difference in my application due to heat. That was my issue Saturday is I couldn't get enough heat in the Hawks on this course for them to really bite. Slotted rotors help you dissipate heat. If I had a traditional braking system then yes they would be an asset but not on Prius. Btw, they're not allowed in stock class.

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  15. mrstop

    mrstop PWR Mode

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    A little off topic, but does stock class allow for 17" wheels, rear sway bar and/or lowering springs given they are an option on the Prius?
     
  16. floppyedonkey

    floppyedonkey New Member

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    Here is a quote from a comparison article that may help you, since it is very useful information regarding what is and what isn't allowed in your class however this quote also addresses an additional option.

    Quote from: http://www.surrealmirage.com/subaru/brakes.html/

    "GAS SLOTTED ROTOR OVERVIEW

    Ok first thing they say "Enhanced Initial Bite" Sure this gives you may get a stronger "BITE" from the slot, BUT that is NOT what it is there to DO!! The slots on the rotors are to vent the build up of gasses produced in the interface between the rotor and the brake pad material! That is really all they're meant to do. Some brake pads have a slot down the middle, this slot also helps release those gasses. Main thing is, if you have gasses between the rotor and the pad, you loose braking performance, you do not have as solid a direct contact between the two."
     
  17. toyotechwv

    toyotechwv Toyota Technician

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    I may be missing it but, that helps me how?

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  18. floppyedonkey

    floppyedonkey New Member

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    All brake applications no matter the force or heat starts creating gases between the pad and the rotor reducing efficiency of your brakes. A slotted rotor allows the gas build up to escape as the pad rotates over the slotted (vented) rotor. Since you aren't allowed a slotted rotor, you could use a slotted (vented) brake pad and achieve a very similar result, having a more consistent braking feel, power and overall efficiency.
     
  19. toyotechwv

    toyotechwv Toyota Technician

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    Prius pads already have a slot and since the hydraulic brakes aren't the primary stopping force on Prius the gas buildup wouldn't justify the cost of the rotors.

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  20. floppyedonkey

    floppyedonkey New Member

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    I am failing to see the point of this thread in this section.