Clutch "chunky" when Hot

ShiftZ

Hey guys, The other day after a bunch of hot runs at an autocross, my clutch started to feel "chunky". This was after about 6 hot laps, the car was getting pretty warm (but the clutch wasn't really being worked since I was in 2nd the whole time). I sat in the pits and cycled the clutch a few times and let it cool down, and it went away.

I'm not sure the best way to describe it. It wasn't what I would call spongy, but it was just not smooth engagement. Almost felt like the slave cylinder wasn't sliding smoothly over the shaft.

I have recently installed a Southbend Stage 2 clutch, HD CSC and SS clutch line from Joe at ZSpeed. I have about 800miles on the setup. It was bled well according to Joes instructions when it was installed and I havent had any issues during normal street driving that would make me think that there is air in the lines.

Any ideas? Has anyone experienced this before?

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2009 Monterey Blue 370Z, Touring Sport package, Swift Spec-R springs, Koni Yellow struts