2014-2020 Formula One 1.6l V6 turbo engine formula

[lio007]

I don't understand why they write these odd rules with special cases. Why not just write "Unless he drives for more than one team, each driver may use no more than floor(n / 5) power units during a Championship season, where n is the number of Events in the Championship, as originally scheduled." Then they don't have to change it every time they change the number of races in the season.

Maybe something happens in the next meeting of the strategy group

The FIA President confirmed that the next meeting of the Strategy Group would take place on 18 December, and would focus reducing costs, improving the show, making cars quicker and more difficult to drive, and reviewing the technical and sporting regulations, with the aim of simplifying the rules where possible.

[lio007]

Unless he drives for more than one team (see 28.4(d) below), each driver may use no
more than four power units during a Championship season. This number will be
increased to five if the number of Events in the Championship, as originally scheduled,
exceeds 20. If this is the case, the numbers in b) and c) below will be amended
accordingly

BTW (maybe a) great deal for the engine manufacturers in 2015. Because of the originally scheduled 21 races, the teams can use 5 PU's, even if the Korean-GP won't take place.

[dren]

Has DEGR been discussed yet?

http://www.greencarcongress.com/2013/02 ... 30204.html

[gruntguru]

Has DEGR been discussed yet?
http://www.greencarcongress.com/2013/02 ... 30204.html

Interesting concept. Looks very promising. It is difficult to say whether this technology would benefit an F1 PU. The big question would be - do the benefits carry over to a lean burn environment. The DEGR system described runs at stoichiometric.

42% BTE and 14:1 CR from the NA test engine is impressive. PSA's implementation will be a turbo version - you would expect even higher TE.

[Holm86]

A subject that hasn't been discussed much is the fact that in the 2015 PU's variable inlet trumpets are legal.
Will there be much benefit in using these?? And do you believe manufactures have incorporated them into their 2015 PU designs??

5.9.3 Variable length intake trumpets are forbidden in 2014 only.

edit: paragraph from technical regulations added.

[gruntguru]

This question did come up elsewhere in the forum.

The benefit of a tuned length trumpet is improved volumetric efficiency - perhaps 5% gain in airflow at a particular rpm. Variable length trumpets allow the gains to be spread over a wider band of rpm.

The benefit of small airflow improvements at speeds either side of the engine's "sweet spot" is very small under the current rules. The engines are not airflow limited. The benefit will be a small reduction in the boost required to achieve the desired airflow. This boost reduction will allow a small increase in turbine power available for harvesting. I doubt the gains will justify the added complexity, cost, reliability risk, cost in tokens etc. It will be interesting to see what the engine suppliers decide.

[J.A.W.]

While not discounting the potential for a sophisticated variable intake, inverse nozzle, boundary flow design..
..it is perhaps not unreasonable to assume that the gains for this device for forced induction employment..
..may not offer gains shown by use of the technique on individual runner, naturally aspirated, mills..

[Facts Only]

A man who definitely knows told me that Merc have been working on variable inlet trumpets since mid-2014 and will be running them.

[astracrazy]

Unless he drives for more than one team (see 28.4(d) below), each driver may use no
more than four power units during a Championship season. This number will be
increased to five if the number of Events in the Championship, as originally scheduled,
exceeds 20. If this is the case, the numbers in b) and c) below will be amended
accordingly

BTW (maybe a) great deal for the engine manufacturers in 2015. Because of the originally scheduled 21 races, the teams can use 5 PU's, even if the Korean-GP won't take place.

But Korea is provisional so its not official. When its official then it counts to the rule above regardless of what races then take place throughout the season. http://www.formula1.com/races/calendar_preview.html

Officially there are 20 races (4 engines), provisionally there are 21 races (5 engines)

[Harsha]

Has any one saw this
http://www.autosport.com/news/report.php/id/117089

[dren]

Has any one saw this
http://www.autosport.com/news/report.php/id/117089

I'd assume they would close the loophole if any one PU manufacturer asks for clairification.

[dren]

A man who definitely knows told me that Merc have been working on variable inlet trumpets since mid-2014 and will be running them.

Interesting. It has to be of benefit even with the turbos if they included it in the regulations.

Any idea of the travel distance of the trumpets? I remember seeing a system on the old Mazda 4-rotor:



I couldn't find a larger picture. This looks hydraulic driven for actuation I think.

[emaren]

A man who definitely knows told me that Merc have been working on variable inlet trumpets since mid-2014 and will be running them.

So if it gives them 2% over their current rumoured 700hp, that is 14 extra ponies. If it gives them a 1% reduction in fuel use for the same power, then they can start the race with a kilo or less of fuel compared to running without it.

That is without factoring in any other gains, the current rumours are that they have 'found' anything betweed 50 and 100 hp. Presumably it was skulking in the corner under a tarpaulin or something ?

[gruntguru]

There would be no benefit in peak power terms unless the fixed intake engine was running with trumpet lengths optimised for some other rpm.

At WOT, fuel efficiency and power are the same thing under the current rules.

[J.A.W.]

There would be no benefit in peak power terms unless the fixed intake engine was running with trumpet lengths optimised for some other rpm.

At WOT, fuel efficiency and power are the same thing under the current rules.

G-G - do you reckon the current set-up is tuned to steady state max power/rpm running?

Or did you mean.. ..since WOT operation is begun at an rpm point - below that..

The gains from 'tromboning' the intake 'trumpet' would seek to optimise flow/power over rpm utilized in a band..
..which covers the on track racing gear ratio/acceleration range..