Ammo,
I cannot see why fitting a high capacity rad should make the car run too cool if the thermostat is doing its job properly. I had a report back from Tom Hood last night, he spent the day at Silverstone GP circuit yesterday with his 280 bhp Duratec doing lap after lap as there were only 25 people on the BRDC track day and it was an open pit lane , he reported that temps stayed in the 80`s and he runs the standard CC ali rad and Mazda thermostat. He also reported that he was able to blow away every other car on the circuit inc Porkers GT2 & GT3`s , the car generated a lot of interest due to its pace.
A happy bunny I think
I am still patiently waiting for a drive in this car.
Rob