F1 engine re-equalisation

[Edis]

A pretty realistic ambition Belatti, provided they can get the 900 kJ batteries down to an affordable cost, or perhaps stick with the 400 kJ battery and allow for two discharges per lap?

But with efficiencies and various losses in consideration, you might need a bigger MGU for 900 kJ to be used.

They don't need any more battery capacity in they discharge it several times a lep. Take all limits off. Let them charge it every time they brake and let them discharge it coming out of every corner. Why have artificially imposed limits? Let F1 pioneer a technology that is marketable, green, is an engineering marvel and had an immediate crossover application to road cars which helps the manufacturers exploit their investment and helps justify their F1 budget. The engineering goes beyond what meets the eye. Just maintaining braking balance during charging is a feat in itself.

As conceived it was a "push to pass" feature but, quite predictable it became a "push to defend" button. Overtaking still needs work but not with artificial aid such as two compounds or KERS.

Sorry, but there we are again with the physics, to charge the 400 kJ battery during three seconds of breaking for each corner, you need at least a 135 kW MGU, even at a 100% efficiency and no other losses.
But that is only in theory, I doubt if the batteries would take that kind of abuse for long?

With the risk to continue offtopic, but I think you have misunderstood what limits KERS.

The 60 kW MGU was something like 5 kg, that's only around a fifth or sixth of the total weight of the KERS system. To make a more powerful MGU wouldn't be too big of a problem. To store 400 kJ of energy isn't a problem either, my old laptop stored more than 400 kJ of energy in its two batteries, and those batteries had a weight below 1 kg.

The real problem for KERS is the power density of the batteries, 1 kg of batteries can store 400 kJ, but only support around 4 kW or so. So for 60 kW we need at least 15 kg of batteries to support the power output. At the same time, those batteries can store around 7000 kJ of energy (4000W/kg and 130 Wh/kg).

15 kg of batteries equal approx. 215 26650 cells, for let's say $10 each results in a battery cost of around $2200 per pack plus assembly and parts required for the package.