Super Formula, SuperGT & DTM use a control turbo. Why not use the same control turbo in F1? [Indeed why not just use the same 2.0 4-cylinder regulations entirely! Mercedes already have a unit and Renault might be able to gain access to Nissan's IP depending on how well Renualt and Nissan get along these days. ]NL_Fer wrote: ↑Sun Sep 12, 2021 5:17 pmhttps://topgear-autoguide.com/category/ ... 1607776408
This interview Mario Illien illustrates the cost involved with the MGU-H.
In another interview the cost of an F1 Turbocharger is about 100000 because they are custom made. So for every change in the combustion, the need to redesign the TC and built a new unit. Than spend another few 1000 on fuel on the dyno to test and calibrate the new combo.The MGU-H is to be abolished a good thing according to Illien. “The development of the MGU-H costs as much as that of the combustion engine. An incredible amount of money is wasted there. Whenever you change the characteristics of the engine towards better combustion, you have to adapt the turbocharger and MGU-H. That means new turbine and compression blades for better recuperation. '
The cost could be kept down, if they would freeze the powerunit in design. But they want new fuel, another balance in combustion vs electric power, a new entrant. So a freeze is not the wish after 2025.
That unit, capped at say 600hp or 650hp, plus a control single-motor ERS system capped at say 350hp (or less if it's not feasible), would do the trick. If there was no development on PUs and performance is capped of both ICE and ERS, then costs should drop drastically and new manufacturers should feel more comfortable with joining Formula One.
Manufacturers seem happy with the control ERS system proposed for LMDh racing, after all.
Of course, the negative side of any control parts is that it causes technical stagnation and prohibits technical development that would otherwise happen (e.g., NASCAR running leaded petrol delivered via carburettors until 5 or 6 years ago IIRC).