Hi Sam,

I got no clue about your setup so I wont comment on it.
I can however tell you what I did :

1) NO thermostat : they tend to open too late and respond too slowly to quick temp changes
2) No glycol mixture, ALWAYS PURE.
3) add an oil cooler so both the glycol AND the oil will keep the engine
running cool
4) use only FULL SYNTHETIC OIL 20W50 grade.
5) use best OIL FILTER (race car) type you can find
6) use only SUPER UNLEADED (90+) grade
7) make sure your glycol radiator is large enough and is double row stacked. Should be race car grade. Mine was made to my specifications - not more expensive than a 912ULS radiator and very effective
8) make sure your EFI is getting the FUEL PRESSURE recommended - fule restriction will cause overheating problems...

That's all I can think for now.
Let me know gow this turns out.

Also, would be a GREAT IDEA to give out details of your installation that way we could help you better.

Finally, my installation is running at WOT (Wide Open Throttle) for extended periods and never. experienced overheating. Also ran the Soob on 90F+ days for extended periods without any problems...So, It can be done.

Regards,
Norm
CH701 C-GFEU