Here is my problem. My car is overheating and a few people have told me that I need a new radiator. First of all, when I turn on the heater, no heat comes out of the vent. New theremostat. Also, is it really worth the money for a performance radiator?

 

I was gonna suggest air in your heater core, but then I remembered your other post. About the disconnected hose. Figure that one out first, it's probably related.

I don't have a '92 Civic so I don't know where all the hoses belong. Especially with your engine & turbo... On my '95 Integra, the heater cable operates a valve located on the firewall sorta in front of the passenger's feet. Maybe the cable is broke? Maybe the heater hoses are disconnected?