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Old 05-28-2010, 01:37 AM   #1
vinceGC8
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Member Sales Rating: (54)
 
Member#: 72263
Join Date: Oct 2004
Chapter/Region: SCIC
Location: Los Angeles
Vehicle:
2008 Impreza STi
Dark Grey Metallic

Default APM Racing 2-piece rotors

here are some pics first (note: pics were taken after running them in a session already)





the setup:
stock sti brembos
APM Racing Rotors
Performance Friction PF-01s
RCE KWs
and some other stuff

i recently got a chance to put these rotors to the test at the track(Spring Mountain in Pahrump, NV) and let me say that they are pretty durable.

whats really nice about these rotors is that they are dual drilled, so they fit 5x100 and 5x114 STis.

i was running these rotors in back to back sessions(total of 8, 20min sessions) all day on the 3.2 mile course. the combination of the pads and rotors were awesome. the pedal feel remained the same throughout the day. the directional venting of the rotors helped out with keeping the brakes in their "optimal" operating temperatures. took some time at the end of the track day to inspect the rotors and they looked basically brand new. no cracks or anything.

i'll be heading out to the track again this sunday and will hopefully have some technical data about the rotors and some more pics.


Cliffnotes: APM Racing Rotors FTW
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Old 05-31-2010, 12:15 PM   #2
vinceGC8
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Join Date: Oct 2004
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Location: Los Angeles
Vehicle:
2008 Impreza STi
Dark Grey Metallic

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i dont have the exact results/temps from this weekend but this is what i remember:

APM 2-piece rotors: ~650 degrees C
APM 1-piece rotors: ~760 degrees C
Stock: out of range(the reader could only read up to 999 degrees.

the numbers were pretty consistent throughout the day. we did 3 sessions and came back with pretty much the same numbers session.

the test was done at streets of willow. went out did a out lap followed by 4 hard laps then on the 5th lap(still going at it) into the hot pits to check temps.
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Old 06-03-2010, 12:10 PM   #3
vinceGC8
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Join Date: Oct 2004
Chapter/Region: SCIC
Location: Los Angeles
Vehicle:
2008 Impreza STi
Dark Grey Metallic

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Old 07-02-2010, 03:40 PM   #4
Fierysun
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Chapter/Region: SCIC
Location: So Cal
Vehicle:
2005 Subaru STI
2003 WRX Wagon

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The 1-piece ran 110 C hotter than the 2-piece? That's a huge difference. Good reason to get the 2-piece.
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Old 03-29-2011, 09:39 PM   #5
efaroh
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Location: OC
Vehicle:
2006 WRX Sedan
Crystal Gray Metallic

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I got the 1-piece in the front with HP+ pads all around. SS lines, Blue fluid, Cusco Master Cylinder brace. Bomb diggity braking performance for what I do in the touge.
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Old 06-07-2011, 06:14 PM   #6
APM Tuned
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Chapter/Region: MWSOC
Location: Villa Park, IL
Vehicle:
2005 Evo-STI
R.R.-WRB

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Once again, hope Stillen doesn't give APM Racing a call
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