If you are prepared to spend a bit of gold, and automate swapping coolant every 3 mins, then you can get an effective eu/tick of about 1000 eu/tick (925/tick assuming it takes you 16 seconds to swap out the old coolant and put new coolant in, every 3 mins)
The reactor, ignoring the coolant is full cycle (see http://www.talonfiremage.pwp.b…rgstrm3u94wtyrhdok4zsfaps )
most of the advanced heat exchanges can not be swapped to golden because things will overheat (although with the downtime for swapping, i would guess that minor modifications could be made)
This is a little different from the HAYO Corp in that it has over 450 cooling built in, while the best HAYO cooling reactor cools 336; so this reduces the need for secondary cooling reactors by 1.5 reactors. It is better to cool at the uranium, as the heat goes to the hull, while coolant cells require extra components to slowly move the heat out of them.
Also, the HAYO c.s.s.r, while it is efficiency 6, uses neutron reflectors to achieve that. Finally, with only 8 coolant cells to be replaced, it should be able to be done with 1 rp retriever, once RP is updated, leading to a quicker coolant replacement, and less down-time.
question: whats the best reactor for cooling coolant?