Tom how did you know that I was thinking about that? Thanks man!
Doing the math it didn't make sense to me that the gauge reading had a linear progression! It just seemed too low of a temp reading, by the math that is. I guess it's worth a try with a 180 just to see if in traffic I get a lower overall coolant temp...even a little would make me feel better. I feel so much better when I see the needle 1/2 way instead of 3/4 or more up the gauge face! It only happens in traffic without the climate control "on", if I use the CC the other fan kicks in and brings the temp down a bit. I think it's a perception thing with me...I hate to see a temp gauge up so high in traffic and my first instinct is to turn off the CC. My 72 LT-1 A/C coupe would never allow me to stay in B to B traffic with the A/C on! Guess I gotta get used to this new hi-tech corvette.
thank you for the info!