I was going WOT today becouse were Makeing sure everything is good for when we go to mph for the real tune. We have a 11.0 A/F with like only 14-15 degress in the car to keep it safe. Well today i was cheacking the a/f Car was Great but when i got back there was Coolent all over (by coolent cap). Why did it blow out the cap? Temp of motor was Between 180-190 degrees. Oil Looks GOOD Coolent is Clean ( oil Free) And car still running good? What or why did the coolent spry out the cap all over? What made it do that? Please someone let me know what happen: O ya i let the car Idle and it would go to 190 than drop to 180-182 so its not getting hot. Please help Im sure hope the HeadGasket isnt failing under boost allowing the pressure to do that?