cpbol
Freshman Member
Offline
After doing plenty of reading, it sounds like the OEM style sleeved thermostat is the preferred/recommended style thermostat. My question is, what is the next best alternative? Are you better off running a modern thermostat without the sleeve and lose 25% of your flow through the bypass, or are you better off running the block-off sleeve and no thermostat at all? The context of my question is relative to cooling efficiency - not for using the heater (since we all know heat is not hard to come up with in a Healey!)