| openhouse day on Saturday with the Koyo radiator. The temp on Saturday was around 70 degrees. The coolant system uses 50/50 mix of antifreeze & distilled water. (no Redline WaterWetter) When the car was fully warm up after a short drive without boost, the coolant temp was about 170-175 degrees. Went out on the highway and did couple full boost pulls (19 psi), and the temp got up to 183 degrees. At idle right after the pulls it got up to 185 degrees. I figured that with the hotter summer ahead, it might go up to 195-200 degrees and according to YugoBernie that is within range and my car's coolant system should be in good shape. Big Thanks to YugoBernie for letting me use the Techtom!
 
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