Pure water vs coolant on the track

[cat007]

Hi all.


Just wondering if anyone has tested running pure water vs coolant in the same car on the track and recorded what the temp reached for each?


My FGX XR6T gets overheated on the track after not many laps and was wondering if running pure water, instead of coolant, for higher thermal efficiency is an idea to get a bit more out of my stock cooling system, without having to buy a larger radiator?


Cheers
Hunt