wstar's Journal

Jsolo · 09-01-2012, 10:59 PM

Wow... Quite the saga with rotors!

I would bet that with a full stock setup, there is enough give in the entire system to mask any minor runout. Upgrade to all high performance parts and any deficiencies start to become apparent.

I noticed this to some extent when doing the brakes on the bike, one part at a time. Swapping SS lines for stock (dual run direct from the master to each 4pot caliper) resulted in minor difference. Felt very similar to stock, had ever so slightly (placebo?) harder lever. Some months later, replaced OE pads with EBC HH compound pad (somewhat high performance), bled the system again. This time, the difference was profound. The lever had very little movement to it before becoming rock hard. Practically no sponginess at all. Better feel/feedback as a result. I used the same type of fluid for each bleeding/flushing event. The only change was the pads. OE pads still had about 40-45% material left.

No desire to be tracking the car, but better pedal feel and better initial bite are welcome upgrades from the stock setup. Probably go with some sort of higher performance pad (stoptech performance street pad and SS lines all around) at some point.

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09-01-2012, 10:59 PM	#11 (permalink)
Jsolo Track Member Join Date: Dec 2011 Location: chicago Posts: 783 Drives: '12 G37 6MT Rep Power: 16	Wow... Quite the saga with rotors! I would bet that with a full stock setup, there is enough give in the entire system to mask any minor runout. Upgrade to all high performance parts and any deficiencies start to become apparent. I noticed this to some extent when doing the brakes on the bike, one part at a time. Swapping SS lines for stock (dual run direct from the master to each 4pot caliper) resulted in minor difference. Felt very similar to stock, had ever so slightly (placebo?) harder lever. Some months later, replaced OE pads with EBC HH compound pad (somewhat high performance), bled the system again. This time, the difference was profound. The lever had very little movement to it before becoming rock hard. Practically no sponginess at all. Better feel/feedback as a result. I used the same type of fluid for each bleeding/flushing event. The only change was the pads. OE pads still had about 40-45% material left. No desire to be tracking the car, but better pedal feel and better initial bite are welcome upgrades from the stock setup. Probably go with some sort of higher performance pad (stoptech performance street pad and SS lines all around) at some point.