How Much Power Through Standard Clutch

[Brendan XR6-T]

After looking around I'm guessing I would have approx 235-240rwkw. I don't tend to drop the clutch or anything but do enjoy boosting through the gears but not race changing so to speak. The joint where I bought my 2nd hand car is about to do a warranty job on my clutch as I have only owned it for 1 week and the clutch is slipping in 4th gear up. Only today was I able to have a go in 4th and 5th both times it hit boost it slipped pretty bad. I don't know the life it had b4 me but after warranty I'm expecting it to be good as new has anyone else with roughly the same (235rwkw) had any probs with their clutch or am I just lucky.