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Old 07-25-2021, 05:04 PM
tjs72lemans tjs72lemans is offline
Ultimate Warrior
 
Join Date: Oct 2017
Location: Winona, MN
Posts: 1,158
Default Another high temp reading question

I wanted to post this and found another post similar, but didn't want to hack his thread.
New build 400 bored .03 over. Mostly '72 stock low compression (8.0). Dynoed and now about 30 miles on build. Has a clearanced water pump and 180 thermostat and 1/8" hole drilled in base flange with 50/50 anti freeze. Has AC and new stock style Hayden clutch fan with shroud. Has new Cold Case radiator. Automatic.
Runs normally at 190 degrees even on hot humid days. At light in town goes to 195 and back down when moving.
Issue I see is, on 95 day and wanting to put load on engine going up steep, winding hill about a mile long in second gear, car with AC on got up to 210. Shut AC off and at top of hill turned around and head back down. Cools down to 195. Next day back up hill with AC off. Back up to 210-215. Cools back down on way down hill and hiway.
Is this normal? It gets to approaching 220 which makes me uncomfortable and wonder where it could go.

 


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