Really?
Mine has now ran 356 bhp and 359 bhp on different days with the Stage 2+ setup on those same rollers. Steve (Statller) reckons it is a pretty strong car but I thought that was about normal with all the kit? Have you just got the uprated pump but no sports cat/Stage 2 map etc maybe?
I've posted the RR pics in the Dyno thread of those, but the 310 and 330 runs were impromptu when I was passing and we just got chatting about the cars current state.
I realised there are a couple of bits I've left out of the mods to get to 310, but nothing that should REALLY matter. The car had a DSG Stage 2 map and an LSD as well, but other than that just the Actuator and Stage 1 map, then at 330 it had as before but with the ITG which I fitted myself on the driveway!!
Regards
Matt