Hello all

iv recentley had an engine fitted into my s2 rst, the engine seems
to run fine, but what ive noticed is when starting from cold the car warms up, the tempreature needal goes all the way upto just below red and then drops and and stays around the n. the fan is on direct @ the moment
also when it goes near the red, if i put the heaters on full, it drops down to around half and the heaters are blowing cold air

my previous engine used to stay around the halfway mark on the temp gauge, and i used to get hot air from the heaters

any help will be appreciated

thanks