UPDATE.......
Car has done around 400 mile now and we are still running totally open.
Big change was dumping the coolant, flushing and filling with water and one bottle of Redline Water Wetter, it dropped 20 !!!!!!
FIXED
nice result . I must say I use Water Wetter and race additive - no glycol but rust inhibiter . No anti freeze/anti boil
Tex
If you had a overheating issue they say that Water Wetter works best with straight water, no other coolants .
Yes , but , i also want an inhibiter in the system . Its not coolant.
Glad its worked out .
PS , i have not run a tstat for years . As my cars are dailys plus strip . I can live with it taking a little longer to warm up , i am concerned about not getting up to temp and pulling high rpm with tstat not open at track
A long time ago a radiator repairer/builder told me here in Sydney , like Perth , its not so hot or so cold we really need anti freeze or anti boil additives
Tex
