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This is a discussion on F1 2011 Talk/Results etc within the Motorsports Talk forums, part of the Community - Meet other Enthusiasts category; Can't imagine the tune you'd have to put on an engine to reroute the exhausts like this Renault have found ...

  1. #31
    Would Never, Ever Say Something Bad About an Admin's Mom SonicWagon's Avatar
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    Renault FEE (front exit exhaust).

    Can't imagine the tune you'd have to put on an engine to reroute the exhausts like this


    Renault have found a new solution to the blown diffuser concept. In fact they’ve turned it on its head. With an exhaust that exits at the front of the sidepods.

    Last years teams reintroduced the blown diffuser concept, either by blowing exhaust gasses over the top of the diffuser, or by creating an opening into the diffuser to blow inside the diffuser. Both solutions created more downforce. With the latter solution now banned, it seemed the less effective over-blown solutions are all that’s left to race. However LRGP have found another way, blowing the front edge of the floor.
    For a diffuser to create downforce it needs as much flow to pass through the venturi as possible. Teams arrange bargeboards and other aero devices to build up a high pressure region ahead of the floor to ensure the greatest mass flow underneath. Its then down to the expansion ratio of the diffuser to pull that flow through. Last years blown diffusers improved the expansion ratio, but not the flow ahead of the floor. What Renault have done in to lead the exhausts forward through the sidepods (about 1 meter) in-between the chassis and the radiators, then turn the exhaust 90-degrees to point it down towards the leading edge of the floor. The exhausts gasses follow the curved leading edge and round underneath the floor. This accelerates the flow under the floor for more mass flow and hence more downforce.

    Problems with this solution are mainly to do with heat and engine mapping. With exhaust temperatures of 6-800c some clever insulation solutions are needed to keep hits heat from the fuel tank, radiators and a electronics. Then the Renault engine team lead by Rob White need to design exhaust tuning to deal with a far longer secondary pipe. typically longer pipes are better for low revs, somewhat contrary to the needs of an engine running at 18000rpm. Renault placed their KERS MGU and Battery underneath eh fuel tank, this was clearly to allow the packaging of the FEE. Unlike the McLaren F-duct, it is possible for this solution to be copied as no monocoque alterations are required.
    Renault R31 Front Exit Exhausts (FEE) – Explained « Scarbsf1's Blog
    "It is at our most challenging times that we must cheat our very hardest" - Eric Theodore Cartman
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  3. #32
    Moderator rage-wrx's Avatar
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    A video of the 2011 Sauber C30 .You can see the working of the new rear wing at 2:45
    YouTube - Onboard with the 2011 Sauber C30 in Valencia
    T0ny
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    Ooh,hang on. That is the throb of a turbocharged flat four engine. A sound which,all over the world,heralds the imminent arrival of a moron - JC.

  4. #33
    Administrator RayfieldsWRX's Avatar
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    Interesting video and rear wing function.
    It's always an eye-opener to see just how close to the ground those cars are.
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  5. #34
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    The wing will only activate on one designated straight and only if the gap between the car using it and the car in front is less than 1 sec. Sounds pointless? I agree but if used in conjunction with the KERS it may provide spectacle.
    "It is at our most challenging times that we must cheat our very hardest" - Eric Theodore Cartman
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  6. #35
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    It will also provide for a spectacle after the race ."A driver can only activate the flap when indicated to do so by a light that determines he is within a second of the car in front. Via the use of transponders around the circuit, the FIA govern when a car is within that second, with the flap to be used at one pre-determined point on the track only, and not necessarily along the main straight."
    T0ny
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    Ooh,hang on. That is the throb of a turbocharged flat four engine. A sound which,all over the world,heralds the imminent arrival of a moron - JC.

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    Whatever Renault Lotus have done to the car seems to be working.Kubica was fastest of all on day 3 with under 100 laps under his belt.It is the fastest time posted in 3 days of testing.
    T0ny
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    Ooh,hang on. That is the throb of a turbocharged flat four engine. A sound which,all over the world,heralds the imminent arrival of a moron - JC.

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    Administrator RayfieldsWRX's Avatar
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    Wow, is that really the rule for when they can use that spoiler mod?
    Somehow "manual control governed by transponders and location" doesn't feel like racing to me. Maybe it will be fun to watch.
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  9. #38
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    From the FIA Rule book regarding the rear wing

    This change is designed to increase the amount of overtaking. The driver-adjustable front wing of 2010 is gone, replaced by a driver-adjustable - but FIA regulated - rear wing. It has just two settings, ON and OFF effectively, with the ON setting increasing the gap between the main plane and the flap from 10-15mm to 50mm. This will reduce drag significantly and so improve top speed. Drivers can use the system at any time in practice and qualifying, but in the race there are restrictions. It cannot be used in the opening two laps, and then will only be made available to the driver at set points on the circuit if he is less than one second behind the car ahead. A dashboard light will notify him when the system is enabled. The system is deactivated when the driver releases the button or brakes.

    FIA Technical Regulation
    3.18 - Driver adjustable bodywork :
    3.18.1 The incidence of the rearmost and uppermost closed section described in Article 3.10.2 may be varied whilst the car is in motion provided :
    - It comprises only one component that must be symmetrically arranged about the car centre line with a minimum width of 708mm.
    - With the exception of minimal parts solely associated with adjustment of the section, no parts of the section in contact with the external airstream may be located any more than 355mm from of the car centre line.
    - With the exception of any minimal parts solely associated with adjustment of the rearmost and uppermost section, two closed sections are used in the area described in Article 3.10.2.
    - Any such variation of incidence maintains compliance with all of the bodywork regulations.
    - When viewed from the side of the car at any longitudinal vertical cross section, the physical point of rotation of the rearmost and uppermost closed section must be fixed and located no more than20mm below the upper extremity and no more than 20mm forward of the rear extremity of the area described in Article 3.10.2 at all times.
    - The design is such that failure of the system will result in the uppermost closed section returning to the normal high incidence position.
    - Any alteration of the incidence of the uppermost closed section may only be commanded by direct driver input and controlled using the control electronics specified in Article 8.2.
    3.18.2 The adjustable bodywork may be activated by the driver at any time prior to the start of the race and, for the sole purpose of improving overtaking opportunities during the race, after the driver has completed a minimum of two laps after the race start or following a safety car period.
    The driver may only activate the adjustable bodywork in the race when he has been notified via the control electronics (see Article 8.2) that it is enabled. It will only be enabled if the driver is less than one second behind another at any of the pre-determined positions around each circuit. The system will be disabled by the control electronics the first time the driver uses the brakes after he has activated the system.
    The FIA may, after consulting all competitors, adjust the above time proximity in order to ensure the stated purpose of the adjustable bodywork is met.
    T0ny
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    The Big 2011/2012 Mod Thread


    Ooh,hang on. That is the throb of a turbocharged flat four engine. A sound which,all over the world,heralds the imminent arrival of a moron - JC.

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    It must be interesting to be a driver, to have this device that can make the car go faster when needed, and to be forbidden from using it at that particular moment.
    --Ray
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  11. #40
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    BREAKING NEWS: Robert Kubica medevac'd from crash at Ronde di Andora Rally

    BREAKING: Robert Kubica medevac'd from crash at Ronde di Andora Rally — Autoblog
    T0ny
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    The Big 2011/2012 Mod Thread


    Ooh,hang on. That is the throb of a turbocharged flat four engine. A sound which,all over the world,heralds the imminent arrival of a moron - JC.

  12. #41

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    wow !! .... i wish him a speedy recovery
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  13. #42
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    Oh no, that sucks, hopefully he is ok.
    "It is at our most challenging times that we must cheat our very hardest" - Eric Theodore Cartman
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    Formula 1 star Robert Kubica suffered fractures to his right arm, leg and hand and is undergoing surgery after a rally crash in Italy on Sunday morning.

    The 26-year-old Pole hit a church wall at high speed and was air-lifted by helicopter to a hospital near Genoa.

    His British-based Renault team said the driver was being operated on following extensive checks in Peitra Ligure.

    Kubica, whose right hand is badly injured, is likely to miss the start of the F1 season in Bahrain on 13 March.

    His injuries are not thought to be life-threatening, but following surgery in 2003 after a serious road accident as a passenger that left him with titanium bolts in his arm, there will be doubts about his ability to continue in the sport.

    His manager Daniele Morelli told reporters at the hospital: "Surgeons are trying to re-establish the functionality of his right hand."

    He added: "Robert is very strong and he will do it."

    The latest Renault statement read: "After undergoing extensive medical checks this morning, Robert Kubica has been diagnosed with multiple fractures to his right arm, leg and hand.

    "He is currently undergoing surgery at the Santa Corona Hospital in Peitra Ligure."

    read more from bbc.co.uk: bbc.co.uk/sport2/hi/motorsport/9388940

    ---------------------------------

    From crash.net:

    An update has been released on Robert Kubica's condition following his rallying crash in Italy this morning, with the Lotus Renault GP star having been diagnosed with multiple fractures to his right arm, leg and hand, his team has revealed in an official statement.

    Following a high-speed accident less than five kilometres into the second edition of the Ronde di Andora Rally close to Genoa today (Sunday), Kubica was airlifted to the Santa Corona Hospital in Pietra Ligure, where he has since undergone extensive medical checks and is currently undergoing surgery.

    The greatest fear is for the Pole's hand, which has reportedly been crushed and risks requiring amputation. The other concern is that following an F3 accident back in 2003 that left him with a broken arm, should the latest injury complicate that fracture, it could seriously endanger or even destroy his F1 career.

    Click: crash.net/f1/news/166449/

    -------------------------------

    From Youtube: YT.com/watch?v=Uwo7yeUPJVk


    .
    I guess were gonna have to wait until the Doctors report after surgery....
    Last edited by Weasel 555; 02-06-2011 at 10:00 AM.
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  15. #44

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    Robert Kubica, press conference after the surgery

    Click: youtube.com/watch=hEe0084HoT4


    -----------------------------------

    Robert Kubica will be out of action for up to a year following his crash in a rally event in Italy. However, it is possible the injuries he suffered may bring down the curtain on his Formula One career.

    Prof Igor Rossello, who operated on Kubica at the Santa Corona hospital, said the lengthy operation involved the "reconstruction [of] the whole anatomy of the forearm". He continued that while the operation on Kubica's badly-damaged hand had gone well, the next five to seven days were crucial as it was in that period that things could still go wrong.

    When pressed, Rossello said it would be a year before Kubica can hope to have proper use of his right arm again, although he added "drivers are always very special patients".

    Read More: espnf1.com/renault/40129l


    .
    Last edited by Weasel 555; 02-06-2011 at 03:43 PM.
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  16. #45

    Admin - Scooby Hooligan

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    Update

    .....Surgeons treating injured Lotus Renault GP star Robert Kubica have said that they are satisfied with the Pole's progress 24 hours on from the accident that appeared to have cast a pall over his racing career.

    The latest medical update from the team reports that, after a night spent in an induced coma, Kubica's general condition is 'much better, even though no-one is pretending that he is through the worst of his ordeal following a high speed crash on the Ronda di Andora rally in Italy. The Pole suffered multiple fractures to his right leg, arm and hand, with injuries to the latter initially being thought bad enough to warrant possible amputation. A seven-hour surgical process appears to have alleviated those fears, although it is unlikely that Kubica will be back behind the wheel of a competition car in 2011.

    "After spending the night under constant observation, he was briefly woken up by the doctors of the Santa Corona Hospital (Pietra Ligure) this morning, [and] was then able to talk to his relatives" the latest medical update revealed, "He was also able to move his fingers, which is encouraging for the rest of his recovery process.

    "Professor Mario Igor Rossello, director for the Regional Centre of Hand Surgery at San Paolo Hospital in Savona, did not notice any swelling or infection on his right forearm, and this is another good sign, although it will be several days before it is known if the operation has been 100 per cent successful.

    "In order to avoid any physical stress, Robert will be put under gentle medication in order to sleep for the next 24 hours at least. Meanwhile, the doctors will decide how they will treat his elbow and shoulder fractures. Robert may have to undergo surgery once again for this, but not for a few days.

    "Lotus Renault GP wishes to thank the Hospital of San Paolo (Savona) and the Santa Corona Hospital (Pietra Ligure) for their professional approach and their dedication."

    The team has said that it expects to issue another update on Kubica's condition later this evening.

    Click: crash.net/f1/news/166468


    .
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