New Clutch Slipping

[VeX]

Hey guys

just recently got my car on the raod again. while it was off we pulled the gearbox out to have a look at the clutch and throwout bearing as it was making some noise. pulled it off everything was fine replaced the bearing anyway. The pressure plate was in god condition and the clutch had no burn marks on it. the clutch is an OS giken super single with a pillared fly wheel.

after i got it back on the road i thought i would take it for a bit of a strap, here is where the problem started.

the clutch just started slipping as soon as the car came onto full boost. backed off then the thing was damn near impossible to get into gear. stopped the car put the car into first (well forced) even when my foot was fully pressed on the peddle the car was moving forward like the clutch wasn't engaging properly.

the car also shudders when i take of slowly

will be pulling the clutch out shortly to have a look at the fkn thing

does anyone have any idea how this could have happend? the clutch was perfectly fine when it went it it was never flogged.