Kiril Varbanov wrote:The diffuser change compared to the other version is fairly small, it features just new forming in the central channel. I can't possibly know just what the effect might be, but Alonso was very competitive race pace-wise.
The slot gap between the Gurney flap and the diffuser's trailing edge has been increased for that race, too, but that's a parameter, really, so alterations are normal.
The new India spec diffuser also has a wider exit. It is not obvious, but upon close comparison between the two specifications you will notice that the width of the flat edge to either side of the diffuser exit wall is about an inch narrower due to the diffuser itself being wider. The net result is more volume at the diffuser exit, and more expansion of the flow. Prior to this Ferrari's diffuser used less outward expansion than those of Red Bull, McLaren and Lotus for example.
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