WhiteBlue wrote:bill shoe wrote:I haven't seen clear public information about the type of fuel flow restriction.
There will be a maximum fuel flow limit either in g/s or in cc/s which will be reinforced with a total fuel load cap of 65% of the 175kg of fuel the current engines uses. The flow limit will be designed so that cars will not run out of fuel. The FiA is keen to avoid the criticism that comes with such unpopular race deciders. I would be surprised if the fuel cap comes out at over 146L or 114kg per race. A maximum fuel flow limit that has been mentioned in the past (by Scarbs) is 100kg/h or 27.8g/s. I would be surprised if we come out substantially different from those figures.
Thanks for the info. You give a fuel flow with an absolute (constant) limit. If this is accurate then the conventional part of the powertrain will roughly be a constant-power device. This would imply little or no shifting.
However, I'm skeptical F1 would let this happen because it's not traditional. I predict that one of two things will happen--
1. The 27.8 g/s figure will actually vary relative to the 15,000 rpm redline (7,500 rpm will be allowed 13.9 g/s). This prevents constant-power engines.
2. The net power output of the energy-recovery portion of the powertrain will be limited in a way that prevents it from being constant-power, and therefore the overall powertrain will not be a constant power device.
Either situation would be an artificial way to necessitate traditional transmissions and shifting.
I think I'm actually more out in left field than autogyro on this one. I don't want a better/smaller/more-efficient transmission. I want no need for a multi-gear transmission in the first place. A direct drive is the cheapest/lightest/most-efficient transmission you can get. Can I patent that?
I probably agree with WhiteBlue in the sense that I think fuel or airflow limitation is the fundamental and natural way to limit engine power rather than traditional displacement and rpm limits.