Hows the mph on these back to back runs? Are you losing the ET in the 60', or progressively down the track? Wire the fans so they're on during both runs and you're theory on that should be answered. What kind of fuel system do you have?
.9 or basicly 1 mile per hour, .007 slower 60'
I don't run a thermostat, the water pump sensor controls the water flow. if i flipped both switches, aka constant, it would be way too cold by the time i got up to stage. I won't stage with less than 160 degrees(when water pump turns on.
I'm running a Walbro GL392 inline electric fuel pump with 4 port regulator(with return) set at 8 psi.