Originally Posted by VictorH
... I'd like to hear from others who talked to other race shops to see if their recommendations differ.
The issue may vary by model year and, probably, varies by track circumstances. In 2009, the conditions involved lots of long straights to heat the headers and reservoire. Less full-throttle time per lap might not be as hard on the pump. There were absolutely numerous failures at the Advanced M-School that I attended.
Why Turner would say there's no problem when there clearly was one at VIR is hard to understand, unless the problem has been fixed.