OS Giken Clutch Problem/Question

[cardinal]

I have a twin OS Giken in my track 240sx...basically a 400whp road race setup. When the car first goes on the track the clutch grabs where you would want it - near the bottom of the pedal travel. After a 20 minute track session, the clutch engages way at the top of the pedal travel. Let the car cool for a half hour and the clutch will once again grab at the bottom of pedal travel until the end of a 20 minute session where it is engaging at the top of pedal travel again. The clutch does not slip anywhere so I can't tell what is going on. I was thinking I might need to add in some more pedal travel (lengthen the rod) but not so sure that would help.

Any ideas??

Thanks in advance.

[boro drift]

Have you removed the hydraulic dampener?

[cardinal]

Have you removed the hydraulic dampener?

Yes, I sure did.

[boro drift]

You must still have air in the line. Bleed the s*** out of it and see if that helps.