http://www.f1i.com/magazine/magazine-fe ... formule-1/it is more interesting to run the engine lean (even lose a few horses) to power the MSU-H than exploiting its maximum power ...
Advancing ignition timing will increase the pressure prior to TDC where it does negative work on the piston. This negative work must be subtaracted from any gains obtained from the higher peak pressure occuring after TDC.pgfpro wrote:Before testing I thought in simple terms if the combustion pressure was higher it would produce more torque, but this is not always the case. Even sometimes when ignition timing is advance the pressure rises and the torque drops. This must have a lot to do with the fuels flame speed, bore size, etc. All testing was done at the same rpm, timing, map, fuel mass, etc.
Grunt this is where I was going with this thank you. Also I would like to add even when advancing ignition timing there will be a point where cylinder pressure % increases at a much faster rate then torque % before torque starts declining.gruntguru wrote:Advancing ignition timing will increase the pressure prior to TDC where it does negative work on the piston. This negative work must be subtaracted from any gains obtained from the higher peak pressure occuring after TDC.pgfpro wrote:Before testing I thought in simple terms if the combustion pressure was higher it would produce more torque, but this is not always the case. Even sometimes when ignition timing is advance the pressure rises and the torque drops. This must have a lot to do with the fuels flame speed, bore size, etc. All testing was done at the same rpm, timing, map, fuel mass, etc.
So from the picture it appears that the MGU-K has changed from driving the crankshaft at the rear of the engine to driving the front. While this may improve weight balance, it would seem to have the disadvantage of requiring the crankshaft to handle a lot of additional torque.Big Mangalhit wrote:it's the MGU-K that will be moved to the left bank I believe.
What gets to the crank is varying/reversing torque. The preload may be helpful in this regard.chip engineer wrote:So from the picture it appears that the MGU-K has changed from driving the crankshaft at the rear of the engine to driving the front. While this may improve weight balance, it would seem to have the disadvantage of requiring the crankshaft to handle a lot of additional torque.Big Mangalhit wrote:it's the MGU-K that will be moved to the left bank I believe.
It would seem that almost the same weight balance could be achieved by keeping the MGU-K on the side of the engine, but still driving the rear.
Does anyone know if this picture is accurate in this detail?