[WEC] Porsche GTP / Hypercar: factory and customer

[Spyderman]

Apparently the test went well. 4,756km completed.
https://www.facebook.com/GTPorscheMagazine

[Victor_RO]

http://www.endurance-info.com/fr/les...u-paul-ricard/

Figure sounded promising, but they tested with both cars, and it doesn't make it clear if the total is 4756 km between BOTH cars or they both ran the same distance. Otherwise, that would mean less than 2400 km per car on average, and a fast Le Mans would be beyond the 5000 km mark anyway. So... worrying.

[Spyderman]

In total, the two LM P1 cordoned 4756 km.

[Gingers4Justice]

At least they did enough miles to get more snaps...



Seems like a new, lowered nose which meets the rest of the bodywork:

[Victor_RO]

Still not enough trouble-free distance for a 24h race.

[wdave0]

Originally Posted by Spyderman

In total, the two LM P1 cordoned 4756 km.

My French is rusty but to me it looks like a typical PR test report "We had plenty of problems but prevailed and racked up some good mileage and learned a lot, all the drivers got a turn and it makes us more ready for the prelude." (is that a hybrid too?)

[Bandicoot17]

[Spyderman]

At least the car is looking much nicer!

[Gingers4Justice]

Porsche 919 revealed at Geneva:



Porsche 919 tested this week:



I'm sure there's a lot different. I've noticed the front fenders seem to have a bit of an undercut and a more aggressive radius at the top. New wing mirrors and different side-pod treatment. Seems to be a different door and engine in-take design too - not sure if that's why the lettering has been moved on the livery. Leading lights have moved as well.

Looks like the car has had its rear-end changed at some point, looking at the loss of the Michelin man's legs.

[Spyderman]

Originally Posted by wdave0

My French is rusty but to me it looks like a typical PR test report "We had plenty of problems but prevailed and racked up some good mileage and learned a lot, all the drivers got a turn and it makes us more ready for the prelude." (is that a hybrid too?)

Agreed! They still have issues and the car is nowhere near ready for Le Mans. I don't think that is unusual or unexpected (given the complexity of the new LMP1's). The important thing now is that they stop the staff turn-over, team build, get the technical issues sorted and start concentrating on performance gains ASAP.

[Spyderman]

Originally Posted by Gingers4Justice

Porsche 919 revealed at Geneva:



Porsche 919 tested this week:



I'm sure there's a lot different. I've noticed the front fenders seem to have a bit of an undercut and a more aggressive radius at the top. New wing mirrors and different side-pod treatment. Seems to be a different door and engine in-take design too - not sure if that's why the lettering has been moved on the livery. Leading lights have moved as well.

Looks like the car has had its rear-end changed at some point, looking at the loss of the Michelin man's legs.

Also major change in the engine scoop

[MyNameIsNigel]

"The test was a very challenging one for the entire crew," said team principal Andreas Seidl.

"The target was to simulate a race weekend in order to prepare for the six-hour races that are coming up. This was a very important experience for us.

"The test taught us that we have to improve in terms of reliability. We are going in the right direction."

(source: autosport.com)

6h race simulations it would seem.

[gwyllion]

The car looks the same as in Sebring. The biggest difference that I notice, is that the brake cooling ducts have been closed, presumably because of lower ambient temperatures.

Regardless of the strong and cold Mistral winds early in the week on the circuit, which is 470 metres above sea level, the team enjoyed excellent testing conditions. With ambient temperatures from as low as four degrees at night and up to 12 degrees during the day (track temperatures 4-23°C) the circuit was dry, except for some light night-time drizzle on one occasion. Together the two 919 Hybrid cars covered a mileage of 4,756 kilometres.

source: http://www.endurance-info.com/en/sea...n-paul-ricard/

People interested in the aero updates since Sebring, should have a look at http://lemansprototypes.over-blog.it...122929212.html

[Spyderman]

The engine scoop is different to that used at Sebring (no hole beneath the major entrance).

[Mike E]

Racecar Engineering have some pics from this week. Scroll to the bottom of the article.

http://www.racecar-engineering.com/cars/porsche-919/

[gwyllion]

Originally Posted by Spyderman

The engine scoop is different to that used at Sebring (no hole beneath the major entrance).

No sure of that. The pictures from Sebring of the engine scoop were not very clear with the camouflage stickers.







I still think that the aero is unchanged (except front braking cooling) since Sebring, where they apparently also ran with low downforce

[airbusA346]

Originally Posted by gwyllion

No sure of that. The pictures from Sebring of the engine scoop were not very clear with the camouflage stickers.







I still think that the aero is unchanged (except front braking cooling) since Sebring, where they apparently also ran with low downforce

The side exits after the front wheels are also different between #14 and #20.

[gwyllion]

As shown on the drawings of Antonio Pannullo, Porsche already tested these two versions in Sebring:

source: http://lemansprototypes.over-blog.it...122929212.html

[gwyllion]

Originally Posted by Mike E

Racecar Engineering have some pics from this week. Scroll to the bottom of the article.

http://www.racecar-engineering.com/cars/porsche-919/

The beginning of the article has also been updated.

However, from the moment the car hit the track, a vibration issue with the V4 engine caused the interlinked suspension to break. A major redesign of the engine was commissioned early on, instigated by the Technical Director Alex Hitzinger. That engine, featuring a new crankshaft, was installed for the test in Portimao in which Mark Webber completed 600km.

Since then, Porsche has tested in Bahrain, putting race distances on the cars, tyres, hybrid systems, gearboxes and engines. Two 30-hour tests are planned before the Le Mans 24 hours to validate the changes made to the car.

New bodywork has been designed and was first tested at Sebring in mid-March.

Interestingly, with Audi’s confirmation that it will run with only one hybrid system in 2014, only Porsche and Toyota will be in a position to go for the full 8MJ release rate at Le Mans. However, Porsche says that it will wait until endurance testing is complete before it decides on which category in which it will run.

Porsche has little time to choose the ERS size, because the homologation must be done any time now.

[Spyderman]

Yes. I think time is now a real issue.

[Spyderman]

[QUOTE=gwyllion;3384930]No sure of that. The pictures from Sebring of the engine scoop were not very clear with the camouflage stickers.

Sorry! I was going by what is in the drawings.

[NelisB]

Originally Posted by gwyllion

The beginning of the article has also been updated.

Porsche has little time to choose the ERS size, because the homologation must be done any time now.

So are Porsche running a third spring then? If i remember correctly Audi doesn't use this and Toyota does? Or are we talking hydraulically linked suspension like a formula 1 car? like this: http://scarbsf1.com/blog1/2011/10/17...ar-suspension/

[gwyllion]

I was also wondering what Andrew Cotton means with "interlinked suspension".

The push rod rear suspension of the 2011 Audi R18 was fitted with a third spring: element 4 on this picture.

source: http://www.mulsannescorner.com/RCELeMans2011.html

On the cutaway pictures of the 2012 R18, which features pull rod rear suspension, no third spring can be found.

[Spyderman]

Tweeted by Andrew Cotton:
Andrew Cotton ‏@RacecarEd 6m
Porsche says that it is still aiming for 8MJ. It will be the only one in that category if it manages to do so...

[arakis]

I'm guessing their tiny v4 was chosen with 8MJ in mind from the beginning. I think they have no other choice...