Toyota announces WRC plans

[TWRC]

BOS Dampers:
One question:
Mäkinen has quoted that he intends to use BOS dampers on the Toyota WRC.

In - i think it was 2008 - I did a research story trying to find out what went wrong with Subaru/Prodrive, and why Petter stopped winning after 2005.
There was off course several aspects, but one thing - that was confirmed also by other people than Petter, was that the BOS dampers was not up to scratch.
I believe the problem was that they overheated on the stages, which off course drives the performance in a negative direction.
Why this was not fixed, I do not know, but I know that Prodrive as a company wasn´t the worlds best payer off bills at that time, so if it was a lack of founds heading the BOS way, I am not sure.

Prodives own proof of not thinking that their BOS dampers was the best (or was it economical factors?), came when they entered in a later rally, to prove Petter wrong in that the 08-car was slow. The car was then on Öhlins.

It would be interesting to know why Mäkinen will choose Öhlins, and not one of the more straight forward choices like Reiger, Öhlins or Sachs.

If I'm not mistaken, Citroën has been using BOS or their own, but BOS-derived dampers for years, from the C2 S1600 to the DS3 WRC. What's intersting is PSA's turn to Öhlins as of late, but that's OFF here. As far as that goes, I think that with the right amount of money, all the mentioned companies are capable of delivering a damper that is competitive with the others.

[AMSS]

Mäkinen wants to use BOS because they have used them on their Gr.N Subaru, the main reason I think is Lasse Lampi is BOS importer for the nordic countries and Lasse has a long history with Mäkinen.
This is actually something alot of people wonder about as there in all fairness are more established suppliers out ther.. like the ones you mentioned for instance
Citroen buy various parts from BOS for their WRC cars and assembles them themselves(same as they used to do with Exe-Tc in the past until ~2010)

[Rallyper]

Dampers as a whole is kind of rocket-science, I guess. But - and it´s a but - the parts one of each other isn´t rocket science. So why dont they build their own dampers/suspension sets? To my knowledge there is so many technicians working with dampers on daily basis who could put together proper equipment, isn´t it?

[danon]

Toyota Yaris WRC - Test Italy 2015 Day 4 - https://www.youtube.com/watch?v=b1bWBACnqsw

[Lundefaret]

Toyota Yaris WRC - Test Italy 2015 Day 4 - https://www.youtube.com/watch?v=b1bWBACnqsw

Wow! That was something else, looks much faster. Set up looks good, maybe a little slow on the rebound from side to side, but looking WRC fast.
Some small driver errors at:
0:57 A little bit to early turn ins and to early apex points in the corners before leads to a to wide exit at 0.57 where the weight is heading in the wrong direction, leading to a bit much sideways force to late in the corner. But this is in minute detail.
1:05 Missing the apex point. Has trouble with the direction change of the weight/forces, so sideways force pushes the car away from the apex point, and delays acceleration. But if the inside is very bumpy, difficult to see in the film, this could be on purpose.
2:06 Turns in to early, and the corner is too long, so he ends up going straight to the outside missing the apex, and delaying acceleration. Maybe not a biggy, but this is how You loose to Ogier.
2:40 Hitting a bump on the inside of the hairpin, affecting acceleration in the most important part of the corner - the early exit. Leading me to think that it could be faster with a wider line trough the corner, keeping 30-40 cm away from the apex. This is why 1.05 could be on purpose. (Much better at 3.53)
3:14 Maybe a little too much body roll, and a little to little rebound on the body roll? Could have had som progression in the anti roll bar maybe?
The driving gets faster at the end of the video. Either a change of driver, or a progression of driving and/or set up.
All in all very good, and if it had not been for the video saying Camilli, I would have guessed Hirvonen - at least for the last part. Cool!

[danon]

Perfectly analyzed...

[Mirek]

Compared to previous days it's indeed like day and night.

[Rallyper]

For me it looked like they didn´t push at all the first days...? Maybe also on purpose. Which I couldn´t reccon.

[Eli]

Toyota Yaris WRC - Test Italy 2015 Day 4 - https://www.youtube.com/watch?v=b1bWBACnqsw

wow looks really pretty over there and also the roads, that's where they should do Rally Italia and not Sardegna.

[Andre Oliveira]

Again the K-AM 1422. Looks better than the K-AM 1411