Crash.Net User: 107SS2009

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107SS2009

January 20, 2015 12:38 PM

F1 » Honda can develop F1 engine in 2015


Continued, it was acknowledged that FERRARI had the best exhaust dumping system of all three (elimination of exhaust back pressure effect on power output) and that Alonso was a master of making the best use of it mostly at the starts of the race. Mercedes on the other hand for some reason or another did not let their drivers at liberty to use this system. Hope these points were of interst to those reading them.

107SS2009

January 20, 2015 12:05 PM

F1 » Honda can develop F1 engine in 2015


Continued, in this mode all possible back pressure is eliminated, and the maximum output from the engine is obtained, the use of this button is very critical on ES capacity. And here I hope that both Richard and golden oldie will read this because it explains why I call it a “TURBOSUPERCHARGER” exactly because the compressor can be and is driven (on these PU’S) without the use of the exhaust gasses.

107SS2009

January 20, 2015 11:55 AM

F1 » Honda can develop F1 engine in 2015


Continued, “turbo boost pressure”, the current PU’S uses between 2 and 3 bar boost, the higher boost used the higher the exhaust back pressure, the higher the back pressure the more the engine output will suffer, for this reason the following explanation is needed. Unlike KERS which used to be on call by the driver trough a push button ERS is mapped into the throttle pedal, but there is still a boost button on the steering wheel (all cars/teams), remember the cheating arguments Lulu/Rosber using it without being authorized?, this boost button works like this, the turbine (exhaust and impellor (compressor) having to be on the same shaft and rotates at the same speed while the MGU-H being coupled to the shaft and can be declutched (for safety reasons), when the driver uses that boost button all exhaust gasses from the engine are dumped to the exhaust tail pipe (bypasses) the turbo by means of the Waist gate and the compressor is driven at instant full boost by the MGU-H on ES power. To

107SS2009

January 20, 2015 11:16 AM

F1 » Honda can develop F1 engine in 2015


For the benefit of other readers, In addition to the already explained “what makes the strongest combustion” and that regardless of the “injection pressure the volume remains the same” here is some more information regarding valve timing, the most important thing on a forced induction engine is minimising valve overlap to prevent part of the boosted charge going right through from the intake valve to the exhaust valve with the consequence of drop-off in boosted pressure , which otherwise will have to be compensated for by a much bigger volume producing turbocharger. In a forced induction engine where there is no restriction on fuel flow the limit to power output will be what the engine can stand before going bang, while with a fuel restriction imposed the limit is the fuel flow on many a parameter of engine design/function. To be continued.

107SS2009

January 20, 2015 7:42 AM

F1 » Honda can develop F1 engine in 2015


Sasha Alexandrovich:
Is there a point in doubling turbo pressure when they are boost limited due to fuel?
You can run more agressive valve timing, the higher pressure fuel distributes differently and because of different expansion cools the cilinder a bit more etc etc. You do not inject more fuel, just at a higher pressure. Diesels inject at 2000 bar for example. The tech side of the story is too long to write here.The effect will actually be lower fuel usage or more power using the same amount of fuel. So you can underfuel without loosing speed compared to 2014 or simply turn the wick up without using more fuel than last year.
. Sasha Alexandrovich, I was hugely disappointed with your very convenient line of “The tech side of the story is too long to write here”. I touched upon your points in the hope of an explanation but still waiting in vain for your tech side of the story. This/your line of dialogue on a forum is of no help to othe

107SS2009

January 20, 2015 8:45 AM

F1 » Honda can develop F1 engine in 2015


Sasha Alexandrovich: I do not have time to go in detail of valve timing, fuel atomization, behaviour of the fuel/fuel-air in the combustion chamber, pressure-expansion-cooling effect etc on a crash net forum at the end of the discussion. Sorry for that.
Very disappointed with your answer which I consider not fair with other readers on CRASH NET forum, YOU SHOULDN'T HAVE STARTED IT KNOWING YOU ARE SO SHORT ON TIME". Your answer/actions has pushed me to prepare a few facts (later on) as to what you touched upon for the benefit of other readers.

107SS2009

January 20, 2015 10:05 AM

F1 » Saving Marussia ‘still certainly possible’ – Lowdon


Richard, it does look like Honda will be at a disadvantage having just two PU’S running on the grid. Even Stoffel Vandroone said that his only chances of a F1 race-seat could be in the hands of Honda supplying another team. As to the (B) team subject, it is a fact that since the formation of STR, RBR had the advantage of owning and running a (B) team, this was recognised by the other big three and it was understood that they were working on those lines (not as strong a line at FERRARI), but things got on hold by the prospects of customer cars being introduced.


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