As Rhys says, jumping off the rollers on the top end soon as the power is full down. they managed to get it strapped down to get the 242 bhp reading but it was still jumping so the result is useless really..
the plan is to leave the car with nick and craig (yes i trust these guys with my life) and let them do their thing, because iv been their 3 times now and every time its jumped or slipped.. we have tried all sorts but they now have more ideas so its all good