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Old 18 May 2017, 16:32 (Ref:3734282)   #5401
roderick
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Originally Posted by Bubak View Post
Well, yeap, it is great that it can be possible (maybe with some fine to Toyota Racing, 5000 Euro +/-: D) to have Stéphane Sarrazin in num. 7. So, have two solid crews ... I think Toyota strategy will be clear and from oldstyle days: have two sprint cars to catch a win and one endurance trim behind two Porsches ... and who knows, perhaps num. 9 win a race as Porsche Num. 19 in 2015 (in terms of pace, but it will be f&cking miracle! ) ). I think that last endurance crew that already won Le Mans was Peugeot in 2009. Le Mans tyres strategy is a same as last year, no change on useing numbers of tyres, right?

Good or bad, Stéphane Sarrazin was so many times in driver lineup that battleing a win (in 2014 ... or last year in 6 num .... but there is clear indication that Porsche winning crew from last year in terms of whole performance were naturally better than No. 6 Toyota and more lucky one as No. 5. )

BTW, on June's issue of updated TS050 on Racecar Engineering Pascal Vasselon said that the weakest point was clearly the quality control last year. The part that broke physically [at Le Mans] was a quality issue which was impossible to catch (ehm, like wiring loom in 2014? :-/ ). Now, if they had the same failure, they would be able to do the last lap in four minutes at Le Mans (BTW they had similar problem with num. 6 later on Nürburgring WEC and car finised). It was because whole team
were running short of time of engine developing (well, right, run first dyno on the end of the year ((2015)) and 6 months later win LM? Not possible! ) and didn’t have right mode for the engine. So, late desitions about engine change to fit into a chassis (last year article about TS050 2016 spec. was saying that position of (inter)coolers was a nightmare).

The best picture of TS050 2016 engine so far what I have found is this one...

Attachment 49592

Well, line connector (pipes) from coolers and intercoolers are pretty weird... so maybe not suffering vibrations issues during a whole event... but, seems still a bit strange at whole.
The problem wasn't just because of its placement. The real problem of intercooler pipe problem was due to adhesive connecting carbon fiber duct and aluminum manifold port.
As far as I know, they've changed the layout drastically and no longer using CF for the piping between intercooler and manifold.
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Old 19 May 2017, 01:49 (Ref:3734372)   #5402
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TF110 should be qualifying in the top 3 on the gridTF110 should be qualifying in the top 3 on the gridTF110 should be qualifying in the top 3 on the grid
All aluminum now?
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Old 19 May 2017, 04:38 (Ref:3734386)   #5403
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bentley speed 8 should be qualifying in the top 10 on the gridbentley speed 8 should be qualifying in the top 10 on the grid
It all points out the fact that last year's car was a rushed job, with having to develop the new V6 much earlier than they expected. This year, they finally had time to optimize the car, and so far it seems to be quite good in the reliability department.
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Old 19 May 2017, 08:41 (Ref:3734417)   #5404
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Japanese Samurai has a real shot at the podium!Japanese Samurai has a real shot at the podium!Japanese Samurai has a real shot at the podium!Japanese Samurai has a real shot at the podium!
Toyota will stream J-sports live broadcast of LM24 race for free (only in Japan ?).
http://toyotagazooracing.com/jp/wec/...4h-lemans.html
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Old 19 May 2017, 13:41 (Ref:3734463)   #5405
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Car Watch reports Toyota Le Mans tech briefing meeting.
http://car.watch.impress.co.jp/docs/news/1060699.html

2017 TS050 battery system electric pressure: 815V (2016 spec: 750V)
2017 TS050 battery running possible temperature: 85 degree (2016 spec: 60 degree)

Necessary time is 4 minutes and 30 seconds to charge 8MJ.

Last edited by Japanese Samurai; 19 May 2017 at 13:53.
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Old 19 May 2017, 13:56 (Ref:3734468)   #5406
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GasperG has a lot of promise if they can keep it on the circuit!
Li-ion cells at 85°C
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Old 20 May 2017, 00:50 (Ref:3734567)   #5407
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Hiro should be qualifying in the top 10 on the grid
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Necessary time is 4 minutes and 30 seconds to charge 8MJ.
No I do not think so (I stand corrected). The writer does not understand this context. The actual slide is a comparison between Prius Prime and TS050. Prius takes 3 hours to charge 10.3 MJ (from the 200V outlet) while TS050 takes 1.3 lap of Circuit de la Sarthe (converted to 4.5 minutes) to charge the same but actually it only requires the braking time which may be several ten seconds. The performance of the racing car battery is astronomical.

Last edited by Hiro; 20 May 2017 at 00:58.
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Old 20 May 2017, 02:25 (Ref:3734573)   #5408
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Thank you for correcting.
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Old 20 May 2017, 14:26 (Ref:3734658)   #5409
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ModelT should be qualifying in the top 10 on the grid
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Originally Posted by roderick View Post
The problem wasn't just because of its placement. The real problem of intercooler pipe problem was due to adhesive connecting carbon fiber duct and aluminum manifold port.
As far as I know, they've changed the layout drastically and no longer using CF for the piping between intercooler and manifold.
Hmmmm, so it didn't simply run out of fuel then?
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Old 20 May 2017, 17:45 (Ref:3734698)   #5410
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TF110 should be qualifying in the top 3 on the gridTF110 should be qualifying in the top 3 on the gridTF110 should be qualifying in the top 3 on the grid
Can someone translate this image and what the square boxes represent?



I notice there's no representative of the Toyota's race engine on that graph, but they show the 'diesel turbo race engine', which I presume is based on Audi's R10, at 42.6% thermal efficiency.
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Old 20 May 2017, 20:08 (Ref:3734727)   #5411
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Can someone translate this image and what the square boxes represent?



I notice there's no representative of the Toyota's race engine on that graph, but they show the 'diesel turbo race engine', which I presume is based on Audi's R10, at 42.6% thermal efficiency.
The boxes are just more data points (engines) that they have data for. The square ones are diesel engines, the diamond ones are petrol engines. They've highlighted a few data points as stars, but the others are just other engines that are perhaps less relevant, so not highlighted. The diesel race engine they've highlighted comes in before the year 2000, so if the scales are accurate then that's not the Audi racing unit. There were a few diesel touring cars in the 90s, but they weren't really at the level of technology that diesel LMPs and touring cars ran in the 00s.

The line graph/arrow they've drawn through the points isn't accurate though. Both the lines should be significantly lower if they're to be accurate.
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Old 20 May 2017, 20:14 (Ref:3734730)   #5412
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Yep, diesel racing engine corresponds to about 1998 or '99, which was the year that BMW won the Nurburgring 24 with a diesel.

To be honest, other than their current engine, I don't see any of Toyota's racing engines being that efficient, since the were high revving NA V8s without DFI. Granted, about the same can be said for anyone else, since especially at LM in '11 and '13 Audi burned more fuel to make more power, combined with the fact that they were running more downforce and needed that power to maximize top speed.
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Old 20 May 2017, 23:14 (Ref:3734770)   #5413
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Can someone translate this image and what the square boxes represent?
Title: (WEC is) Thermal efficiency improvement competition

In box: We chose gasoline engine, but its thermal efficiency figures closes up (=nearly equal to) that of diesel engine.

*However, it's ambiguous whether the comparative target is a production diesel engine or a racing diesel engine in Japanese.
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Old 21 May 2017, 00:11 (Ref:3734781)   #5414
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Thanks for the translations. I didn't look at it right the first time. I agree with you guys and see now the year for the diesel race engine is around the '99, 2000 mark so too early to be the R10. But if Audi was only that efficient 5 or 6 years later it's still a good deal higher than the petrol engine cars. No wonder Audi and Peugeot were said to be making near 800hp.
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Old 21 May 2017, 06:41 (Ref:3734820)   #5415
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Toyota claimed "over 40%" for TS-040, they also claim 40% for last generation Prius (pfi) and 41% for last generatin 2.5 hybrid engine (Camry).

Graph doesn't reveal anything about new TS-050 engine, I think it's just old graph they showed for representation, that diesel and gasoline efficiency are about to meet.
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