Basically my header tank (alloy spec r ) gets absolutly ROASTING HOT can hardly touch and get a fair bit of pressure if tryin to open cap but is not that bad if let my fans go off, and if i have been giving it some i.e 120ish+ it seems to be spraying water from somewhere ? is defo coming from header tank i.e cap fans come on as usual and go off , and car drives and runs great but this water temp thing is puzzling and annoying the tits off me temp sits between O and R on guage when driving round it is stage 3 with pace rs500 cooler , so any ideas guys on this

any help appreciated