Lee a single 10" Kenlowe fan doesnt produce enough air to cool the water in the radiator. Thats your problem of rising water temps!

You need to have 2 10" kenlowe fans as this doubles the amount of air flow and is then more than enough to keep the water temps right down.

You could fit 2 fans on the front of the intercooler but that would reduce the efficency of it, so the best solution is to fit 2 fans to the rad, move the intercooler forward and moficy the bonnet catch IF that hasnt enough clearance of the intercooler