Current I run the N/A 96 water pump and single t-stat, and going uphill it tends to go hotter, not over heat but gets close. We moved to an area full of hills, and now I'm wondering how much of difference would it do adding a newer style water pump and double tstat setup?
I'm understanding the turbo models have the high flow water pumps ?
Or would adding just the double stat set up be good alone?

 

Why not try electric fans , I think it would be cheaper !!