@kranfahrer Ok managed to get it a bit hotter.
Before the tests were running long enough to heat up the cooling fluid, so the CPU was staying cool.
However if i keep it at 100% workload for 15 minutes or so the liquid in the coolers slowly heat up to 65 C and max out and the GPU itself gets to 77C at that point. Keeping it maxed out it appears to be as hot as I can get it.
That said if the GPU relaxes the load for even a second or two the liqud quickly cools to 50 C after a second or two.