It just depends. It seems that the 98 and newer cars run slightly warmer than the 96 and 97 cars (so I hear). I am running a 160 degree T-stat, relocated oil cooler, upgraded radiator, and my car runs consistently around 190 degrees (traffic or not). On the freeway it runs slightly cooler than that. In warmer more humid climates where the moisture in the air actually hurts the radiator's ability to remove heat, Id prefer the car to run on the colder side. I have NEVER had a problem with the car taking too long to warm up. If you are planning to remove the intake manifold, radiator hose, and have to go through the hassle of draining your coolant, just order a new radiator. Ron Davis makes a great unit, archer sells a variety of configurations as well. I think it should cost anywhere from $700-1K depending on how elaborate you go (some come with gigantic integrated oil coolers). The cost isnt cheap, but if youre going to do this work, why do the work for the sake of doing work? If you cant afford it now, Id save yourself the hassle and just do it when you can get the radiator. Burping the car afterwards is kind of a bitch.