Reply to "Cooling above 90 degree ambient"

joules"Racing is Life, anything before or after is just waiting" - Steve McQueen

The gauge pegging at speed sure sounds more like a high voltage than erroneous reading. Normally cooling at speed isn't an issue with increase air flow through the radiator. Do you have the fans with an integral shroud? I have know cases where they become restrictive to airflow at speed, but that was in excess of 150 mph. Is it possible they are being spun by the natural airflow and acting as generators during high speed runs? I have also known fan blades to be on backwards or wired backwards as well, they can still push air at lower speed but not counteract the increased resistance at high speed.

Try driving in a lower gear at sustained high rpm to help determine whether it is an airflow across the radiator or water pump / coolant issue.

6/6/205:20 PM

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