Me and my mate fitted our act gauges today. Mine a 200bhp s2 with bigger ic and my mates a 175bhp van with standard ic and here are our temps.

First run the van...

Idle 22'c
around town (not using turbo) between 23'c and 28'c
Booting it down dual carrageways on 18psi 40'c - 55'c


My car...

Idle 17'c
Around town (not using turbo) between 19'c and 26'c
Booting down dual carrageways on 14psi 35'c - 50'c


Are these average temps ? I dont have a clue what good temps or bad temps are ??!!


Cheers
Sam