The only way I can reach 180F in the winter is on boost.
My engine does not go above 150F when it's cold out. I usually wait until the temp hits 130 before driving/boosting above 3000rpm in the winter, 150F when it's warm out.
RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds
'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8