[jrvariel48]

I took the car out again today to double check the larger overflow tank. Outside temp was 90 degrees with 54% humidity
It idled in the drive way for about 10 minutes at 170*. I drove it out to the high way and it was still at 170*. Mashed the throttle pulling 6lbs. of boost and through the gears I went, up to 70 mph. Pulled back to 65 for about 5 minutes and the temp went right up to 205*
Pulled off the high way to make a U-turn and head home and the temp dropped to 200* and fluctuated between 190-205*. Bottom line, the larger overflow tank didn't help.
Next step is the RMI-25. I'd like to give that a couple of hours of driving time at the least to give it a fair chance.
Again, the 205* sucks and I don't like it, but it was also 90* outside and I don't drive my car in that temperature. If my Sunday morning drives go up to 200* for now, I'll live with it until I change the radiator back. Patience