Ferraripilot wrote:The step in laminar flow from the sidepod top to the exhaust system concerns me. Mclaren started their system somewhat like this last year but ultimately found as we can see with late 27 and now 28 that the transition of flow to the exhaust is about seemless ie. no step.
Except that they didn't – as we were just discussing, it looks like sauber are using air from around the sides to create the downwash over the exhaust, and fill in that gap.
The new Sauber's sidepods opted for what is essentially no undercut around the sidepods/floor area which causes that area to be slightly larger, and this packaging is probably why they could not further tighten the sidepod transition to the exhaust. I actually believe the exhaust almost looks like an afterthought with the way everything else around it is designed.
I'm pretty convinced that it's quite the reverse – this is all intentional, and designed to make the exhaust work better, with it as the first thought, not the last.