I think the rake of the RB car may have a part to play, a diffuser which produces a certain pressure drop with zero rake gives lots of DF with little drag, while a raked floor will produce low pressure below the floor and also slightly behind it.FrukostScones wrote:Is this correct? I thought floor/diffuser downforce is for free and also can reduce drag.bhallg2k wrote:One would think that if the splitter has enough contact with the ground to hinder top speed and require additional cooling for friction that the plank would likely lose through wear more than the maximum 1mm allowed during a race. That's not to say that there isn't anything "tricky" going on with RB8's tea tray, but I think the car's lack of top speed is simply a reflection of the downforce it makes, because downforce always equals drag. Such a trade-off is easy to make with class-leading downforce levels that don't put the car at an especially significant disadvantage in terms of top speed.
Maybe the car is just not very efficient. In the aero/downforce-part of Barcelona it was not the fastest.
radosav wrote:about red bull shutting down 4 cylinders in slow corners: is the fuel from those 4 cylinders pushed in the exhaust pipes and burned there providing some sort of exhaust blowing?
i think that with the different combination of 4 cylinders being shut down you can achieve constant exhaust gas blow.
well i don't know, i posted it to hear thoughts of members if it is possible.alogoc wrote:radosav wrote:about red bull shutting down 4 cylinders in slow corners: is the fuel from those 4 cylinders pushed in the exhaust pipes and burned there providing some sort of exhaust blowing?
i think that with the different combination of 4 cylinders being shut down you can achieve constant exhaust gas blow.
missfire?
You can have an engine map that calls for cylinder cutting at a set rpm, but it is going to be controlled by the throttle position. So then what is the point of cylinder cutting? You want less power, just lift off the throttle.raymondu999 wrote:Are you asking about whether the regs should be changed to disallow this, or what benefits this 4-cylinder trick actually brings?
Of coarse the engine has no way to know where the traction limit is.raymondu999 wrote:Perhaps it is speed related? With the 4 dormant cylinders only "waking up" at a set speed, above the traction-limited threshold?