Just seen this thread, I need to pop on here more!
I've always had reservations about this, if it is the chap im thinking about's car because I've tried (as have a few others) to get some decent dialog going enthusiast to enthusiast about his car spec, and he's saying nothing.
It got my suspicions even further raised when i started pushing towards the 200bhp barrier myself and found there were some architectural limits in the ecu that really needs an enthusiast mapper to solve (not saying going to a tuner and paying for a remap won't get you some result, but there were things that needed some serious rolling road time to find in the ecu, and I can't really see most tuners wanting to give a car of this type the time). It's not an impossibility but it doesn't ring. Very few tuners want to spend several days searching through raw binary, testing switches and limits on the dyno for a couple of hundred.
That said I don't want to call people out as liars because as I've found out myself, being too open about your builds is a recipe for being ripped off. Getting me to part with a dyno graph when it's pioneering stuff is quite difficult, unfortunately tuning has gone that way because of people lying etc etc.
Personally though, it would take something special to break 200bhp, highest i've got to date is 212 and that was with a one off turbo (GT1856 vnt if anyones interested). Torque curve wasn't very pretty though because the exhaust side was leaking so took forever to come on boost
