AlexK-89
Nach der GT3-Verbannung, ist dieses Jahr ja der Gesamtsieg drin.
Subi-EVO-Treff » Motorsport » Subaru beim 24 Stunden Rennen am Nürburgring 2015 - jetzt mit mehr Schrick
Subaru beim 24 Stunden Rennen am Nürburgring 2015 - jetzt mit mehr Schrick
JörgH-67
| Zitat: |
| Original von AlexK-89 Nach der GT3-Verbannung, ist dieses Jahr ja der Gesamtsieg drin. |
der Bann kann nur temporär sein da ansonsten das Rennen nicht stattfinden kann
AlexK-89
Wäre mir lieber, wenn das anders wäre. Aus anderen Gründen, nicht wegen der Sicherheitsfrage.
JannikN-91
Besonders gut find' ich ja, dass sie eiskalt den kleinen Alibi-Diffusor dran gelassen haben, um den richtigen daran fest zu pappen.
JörgH-67
| Zitat: |
| Nürburgring 2015 Engineer Talk New challenges staked on a highly reliable engine 9 April 2015 The newly designed “SUBARU WRX STI Nürburgring Challenge 2015” car incorporates various aspects resulting from STI’s challenges to achieve another victory in the Nürburgring 24-Hour Race. The EJ20 type 2-liter Boxer turbo engine, which STI has been developing for over 25 years since they participated in the WRC, is no exception. Junichi Morita from STI’s Power Unit Engineering Department, who has been in charge of the engine area design for this year’s car, spoke recently about the details of their new challenges. －The inside of the engine room appears to have changed a lot. Morita: “Yes, exactly. Until the 2014 model, we had prioritized reliability among the technologies we have been developing. That was based on the idea that no problems should happen in the engine in order to make it through 24 hours. Small differences cannot change the output characteristics of the engine because an air restrictor is added to air intake. However, the engine has been improved through its use in many different ways, and it is also true that from an internal point of view, we still had some leeway. If someone asks me whether we have done everything we could to win, I would instantly say that we still have some way to go. That is why this year, we have become bold enough to fully introduce options which we have reserved until now, to enhance our competitiveness. －What are the biggest changes? Morita: As I mentioned, an air restrictor must be installed according to vehicle regulations, so we cannot change the output or torque characteristics that much. However, it is clear that cutting pressure losses and airflow resistance reduces loss caused by these negative effects, and the throttle response improves as a consequence. We have focused on these two points in tuning various areas of the car. In short, what we have done is to reduce loss of air intake and exhaust. In concrete, we have adopted a layout which allows a straight path to ventilate air, with the air cleaner box which takes in air from the front of the car as a starting point, via the air restrictor to the turbo charger. With the previous layout, fresh air continuously hits the inner walls of the twisting pipe before reaching the turbine, but with this year’s layout, smooth air intake is perfectly possible. We have also changed the exhaust pipe layout to the isometric 4-2-1 type in an effort to make the exhaust smoother, and this is also one of the efforts we have made to reduce ventilation resistance. We have looked to guide as much air as possible straight to the combustion chambers and let exhaust out smoothly. With no changes in the maximum output and torque, the engine seems to remain the same if you just look at the specification, but drivers should be able to realize that the engine response has improved. I also believe that the changes will be effective in acceleration and overtaking at critical moments. In addition, we have positioned the intercooler obliquely in the longitudinal direction also as a result of our pursuit for efficiency. －Taking on new challenges must be an interesting job for an engineer. Morita: It is a very rewarding job because we can take advantage of the expertise and experience we have acquired as designers. However, as we have to take risks at the same time, we have a lot of responsibility. Changing the layout is not as simple as it sounds because we have to take measures for the thermal barrier and heat release when the position of the turbocharger, itself a heat source, is changed. This year, we have cooperated with the body design and experiment teams to change the shape of the engine hood to enhance aerodynamic performance. So far, we have not come across any problems as a result of this change, but we will not be able to completely relax until we actually hit the Nürburgring circuit for the first time during the 6-hour qualifying race on April 12. －If we look at the whole powertrain, it seems that we can also expect big benefits from the newly introduced paddle shift. Morita: We started using a sequential gearbox last year, but it was the stick lever type and our European drivers sometimes got confused and made mistakes in shifting because they were not so used to a right hand drive. We have switched to left-hand drive and introduced a paddle shift this year, and I think we can prevent such mistakes now. Even though there is only a slight difference in the time it takes to shift gears once between stick lever and paddle shift - like just a few tenths of a second, by the end of the race, the accumulated time loss with a stick lever shifter can be significant. On the Nürburgring circuit, there are more than 170 corners which require repeatedly shifting up and down, and cars run over 130 laps through a day and night. We have also adjusted the mid-speed gears, which were inappropriate last year. Including this, I think that we can expect considerable improvement in speed contributed to just by the areas we have been involved. The weight of responsibility and level of tension are higher than ever, but expectations for performance are also high. Furthermore, the core areas of the engine such as areas around the cylinder blocks, crankshafts and cylinder heads are almost the same as the precious cars that many SUBARU owners have. I hope that they will closely follow us in the Nürburgring 24-Hour Race this year to share in our challenging spirit , even those who have had little interest in the 24-hour race. These challenges will provide us with tips to develop STI complete cars for the future too, so I will also be pleased if they will look forward to such STI developments. |
JörgH-67
JörgH-67
RalfPeterB-80
Wer hat's denn verbockt, also welcher Teammate???
JürgenG-84
Genaues konnte ich nicht finden. Aber da van Dam raus ist, wars Kouta Sasaki oder Hideki Yamauchi. Schrick wars nicht, hat höchstens passiv mit seiner Pechsträne mitgewirkt 
Schnellste Runde mit 9:17 ist aber schonmal nicht soo verkehrt, wenn man die in dem Interview genannten 20 Sekunden, die beim Rennen schneller gefahren werden, abzieht. Wären dann 9 Sekunden weniger als im letzten Jahr. Bin gespannt, was das wird... 
Schnellste Runde mit 9:17 ist aber schonmal nicht soo verkehrt, wenn man die in dem Interview genannten 20 Sekunden, die beim Rennen schneller gefahren werden, abzieht. Wären dann 9 Sekunden weniger als im letzten Jahr. Bin gespannt, was das wird...
JörgH-67
| Zitat: |
| ADAC Qualifying Race 24h SUBARU WRX STI faces setbacks 16 April 2015 The ADAC Qualifying Race 24h took place on Sunday 12 April at Nürburgring in Germany and ,STI, with drivers Carlo van Dam, Kota Sasaki and Hideki Yamauchi entered with the SUBARU WRX STI Nürburgring Challenge car. The Subaru started from the top of the class as a result of the qualifier, but right after the driver change from van Dam to Sasaki, the car sustained damage after colliding with another car, which forced the team to retire from the race. Unexpected pitfalls challenge the team The WRX STI Nürburgring car was transported by air to Germany at the end of March, and after preparation for participation, it took part in the official event schedule of the ADAC Qualifying Race 24h on 10 April. The team entered the event this time with 3 drivers: van Dam and Sasaki, who both have experience in the 24-hour race, leading the team, as well as Yamauchi, a new hire for the Subaru team in SUPER GT, who needed to gain experience for the coming 24-hour race. The team had a plan to collect data on car setups and tyres for their main purpose of participation in this event. However, as the free practice got under way on Friday, problems with the newly introduced paddle shift hit them preventing them from running more laps as they had wished. They figured out that the gear itself seemed to have a problem and decided to replace the whole assembly of the transmission before the qualifier on Saturday. The replacement work took a long time and this single task already put a heavy burden on the mechanics and engineers. “We have introduced bold improvements to win this year, but as usual, new attempts don’t always work so smoothly”, said STI General Team Manager Hideharu Tatsumi. “Not just with the gear box, but some more issues with other areas occurred, and with those problems combined, our chance to run the car slipped away. In addition, the track conditions changed from wet to dry due to the changeable weather. So we couldn’t get the chance to run the car enough before the two qualifiers”. While heavy damage was incurred, there is some promise There was another qualifier in the morning of the 12th with van Dam recording the team’s best time since the start of this event. Thanks to that, they became eligible to start the 4-hour race from the top of the SP3T class. Meanwhile, newcomer Yamauchi had the chance to drive just 3 laps, setting a good rhythm during the qualifier, so it was also beneficial for the team.Yamauchi said that even with just 3 laps, he was able to understand the layout of Nordschleife well, and it was a good experience. After that, the race started in a dry condition at noon with van Dam behind the wheel of the SUBARU WRX STI Nürburgring car. After completing normal laps, van Dam came back to the pit and passed the car over to Sasaki. Normally in a test, he would have driven routine laps to check areas such as tyre wear, but on his 3rd lap, an unexpected accident happened when the WRX STI contacted another car while running side-by-side with it. By ill fortune, tyres on each car hit each other, which caused the WRX STI to leap and then land askew. Sasaki managed to come back to the pit, but damages extended into the bumper, the under-floor parts, the suspension and a part of the body. As a result, the team had to give up continuing the race. Tatsumi said, “Damage spread across a wide area, and we could not continue the race. It was also disappointing that we could not complete many of the tests we had planned. However, even with some concerns remaining with the paddle shift at that time in the qualifier, Carlo (van Dam) recorded the best time of 9 minute 10 seconds to take pole position. This has reminded us that our long-sought goal to break the 9-minute barrier as a lap time is not a tall order, and it sounds promising. Now we are going to fix the car and concentrate on running it without any restraint to display its full ability”. |
ManuD-87
Hauptgegner LMS Engineering ist raus.
Kein Start beim 24H Rennen.
Grund sind Finanzielle Schwierigkeiten.
Gruß Manu
Kein Start beim 24H Rennen.
Grund sind Finanzielle Schwierigkeiten.
Gruß Manu
RubenR-90
Tim Schrick schrieb vorhin auf Facebook das es einen Unfall gab bzw der subaru von einem Toyota, der sich gedreht, hat erwischt wurde. Es ist wohl ein Front Schaden entstanden der bis zum Rennen nicht repariert werden könne...offizielle Meldung abgesehen vom Schrick hab ich nicht gefunden...
JörgH-67
Du hast aber diverse Postings auf dieser Seite schon gelesen, oder?
Der Schaden konnte für das 6 Stunden Rennen nicht repariert werden
Der Schaden konnte für das 6 Stunden Rennen nicht repariert werden
RubenR-90
Er hat es heute morgen geschrieben, ohne Info um welches Rennen es sich handelt 
jetzt wird es mir langsam klar was gemeint war...
jetzt wird es mir langsam klar was gemeint war...ManuD-87
Ruben du jast recht. Es ist aktuell.
Heute war VLN2 auf der 2. Qualirunde drehte sich vor dem STI ein GT86 bei einsetzendem Regen.
Leider konnte der STI nicht mehr Ausweichen. Schaden war zu groß um ihn bis zum Rennen Fit zu machen.
Schade. Tim ist nicht im Auto gesessen bei den Unfall
Gruß Manu
Heute war VLN2 auf der 2. Qualirunde drehte sich vor dem STI ein GT86 bei einsetzendem Regen.
Leider konnte der STI nicht mehr Ausweichen. Schaden war zu groß um ihn bis zum Rennen Fit zu machen.
Schade. Tim ist nicht im Auto gesessen bei den Unfall
Gruß Manu
JörgH-67
Dann muss ich mich bei Ruben entschuldigen
JörgH-67
hier isser mal in vollem Ornat
JörgH-67
anscheinend hat man Sasaki (den Unfallfahrer) rausgeschmissen und ersetzt durch Hideki Yamauchi, Subaru-Fahrer aus der GT300 Serie.
JörgH-67
JürgenG-84
Interessant auch, dass das Paddleshift-System nach den Problemen ausgebaut wurde und nun doch wieder mit Knüppel geschaltet wird. Im Moment läufts wohl ok. Platz 22 gesamt im Regen war nett