No, not at all.saviour stivala wrote: ↑Tue Jan 14, 2020 8:54 amIf your educated guess based on the fact that the use of steel liners separate from the block casting is the best solution in terms of bore distortion and friction reduction, it must have been the same best solution when F1 engine manufacturers abandoned the use of steel liners even with engines revving past the 20k RPM mark.
N/A engines were just a little over 100 bar peak cylinder pressure and had to do fewer races. They were also running relatively rich and considerably cooler.
Current engines are probably 3 times the cylinder pressure, hotter and have to do more races. The stud pretension (which is the what drives high order bore distortion) is also increased in line with peak combustion loads.
I will re-iterate that from experience with engins of lower specific output and similar life that nothing you can put on the aluminium will stay there. Yes there are DLC coatings with lower process temperature that can be applied but they will have lower adhesion and lower hardness.