beelsebob wrote:This is a bit speculative, but... Might the air temperature answer why McLaren did poorly at Bahrain – might it be that they're dependant on air temperature, (and hence the presure and density of the air flowing over the side pod) to get the exhaust to sink towards the diffuser by exactly the right amount? Might it be that they were missing their optimal diffuser sealing?
Well, I guess it may be. After all, besides Malaysia (and this year rain somewhat altered the normal racing conditions), Barhain is the only other super-hot GP of the season, and I can imagine McL relying on standard air conditions while designing their rear aerodynamics.
Nevertheless, in my opinion, this may not be the case. Most summer races can be very hot too, and an aero set-up this sensitive could spoil the pace on a number of similar conditions, making it difficult to rely on the car's ability to perform properly in non-standard weather conditions.
My 2 cents anyway