I am curious about the overheating bit. I met a guy with an Exige S who complained about constantly running hot to the edge of overheating, definitely a 'hot natured' car, while mine showed no such predilection either with the factory radiator[admittedly a few fall months] or the basic level alloy one in it now.
I noticed an Elise in a showroom with a new radiator and very poor detailing of the foam around it. I was pretty anal about that on mine mostly because failures there tend to dump hot air into the AC/heater area, but it does make me wonder, is there a correlation between this and some owners having hot running cars and others not.
On the track, I wonder if this coupled with the computer shutting the fans off at 70MPH might drive temps up.
To drift back on topic[no worries, I am the king of thread drift] is this a possible reason that Lotus over cooled the oil on a car that is destined for track duty?
And since we have Phil in the conversation, I was wondering, how much 'stuff' is available when reflashing. When I look at my[very limited] data set, I see that the oil pressure at idle drops to 23-25 PSI and stays there when the oil hits around 150 deg F[inaccurate external pan temp], which I will interpret as saying it is flowing probably 90 percent as well as it is going to flow. It also happens to track that the oil hits that number when the coolant reaches say 185 degrees, so if the cam change/rev limit delay number is available to be changed in a reflash, would it make sense to change it to a higher number in a car that actually runs warm enough for that[as at least one track car here does not]
and to drift back off topic would it be helpful to change the fan defeat to a higher speed or is it just so much simpler to put a switch to turn the fans on, or is it only really a problem when you are pounding out 100 horsepower more than the radiator is supposed to deal with?