Yeah I may try a new stat if I have nothing to do this weekend...I have a few laying around!

The temp goes up as normal really...and doesn't get high up unless sitting in traffic for quite a while (standstill on the M25 for half hour on a HOT day, 20-25degrees upwards for example), but standstill on a day like today (10 degrees), it doesn't overheat when in traffic either

Looking at the header tank, water seems to be circulating freely too

TBH, once the engine conversion is done, ill see if the 'issue' is still there...hopefully its all good...and like I said, maybe its just me being me and liking the air to be hotter than the matrix can give in this temperature