ahh I see,sweet so sounds like a 45mm will be more than sufficant,cheers for the help

true,mmm got me thinking though when I took my 300kw r32 for a tune the tuner mentioned that my 44m wastgate was to small and it was causing boost creep, just wondering if because I'm going for a smaller power figer on my td42 if I would get away with a smaller gate

collecting parts for my saf turbo convo will be aiming for around 15-200kw boosting a hx35,what size wastage should I be going for?38mm to small?