Any ideas to maximise SMIC cooling on a RR with one fan?

[S4TAN]

Same as Jarv - my IAT's hit 90degC - and that really pulls the power figures down.

As said many times before: the only real purpose of dyno'ing your car is for a before and after comparison when you've had a performance modification done. Even then it'll only really work if the dyno is set up exactly the same both times. I've only done 2 dyno days but from what I've seen the variables involved are huge.

pMAF and FATS times are a good measure of approximate power.