MotoGP » 'Pleased' Valentino Rossi bins 'bad setup'


“We made some mistakes at Sepang II chasing a bad set-up. We changed the set-up, first the rear and then the front, and now I enter the corners pretty well again” – Valentino Rossi.

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TheHorseWithNoName

March 26, 2012 3:04 AM

I know alot of people on this forum get excited when VR says he is making progress (despite the constant unfounded claims of improved performance since joining Ducati). Let us not forget that Jerez is much shorter than Sepang. This means that if the performance gap between VR and Stoner remained constant, the time gap would be smaller. So essentially, VR is in a similar position to what he was at the beginning of last season and throughout the 2012 preseason. Not close enough to challenge for wins or even podiums on a consistent basis.

Walt - Unregistered

March 26, 2012 3:14 AM

Has anyone else noticed that most of the photos of the GP12 during the test, show the rear axle adjusted to it's most forward position? This is very odd, considering Rossi's desire for more front end feel, and the whole reason for the major redesign over the off season.
Moving the rear wheel back would shift the weight bias forward, so it's very surprising that none of the photos show that. It would be interesting to see a photo of the rear axle adjustment late in the test, once the earlier, unsuccessful setup was abandoned.

TheHorseWithNoName

March 26, 2012 3:14 AM
Last Edited 975 days ago

It might be advisable to rein in that excitement until VR actually demonstrates he has the capacity to podium regularly without relying on one of the faster guys to fall off. Unless sixth is something to get excited about for a rider of his skills and record?

nick881 - Unregistered

March 26, 2012 3:16 AM

@TheHorseWithNoName

I'm not sure it is so straight forward to make a comparison between Sepang and Jerez like that. Yes Jerez is shorter but there is a different ratio of straights to corners, difference in number of high speed corners, slow corners etc.

I have forgotten now but didn't this article show that the gap to Stoner is less this year than it was last year?

In Ducati's press release Rossi actually says himself that he thinks his current pace will have him leading the 3rd group in a race. The first group is Stoner, JLo and Pedrosa. 2nd Group Spies, CLow and Dovi. Personally I think he is being a bit over cautious with that statement, I think he will be mixing it with the 2nd group. But only time will tell!

nick881 - Unregistered

March 26, 2012 3:23 AM

@walt

I'm not sure how moving the rear axle back in the swing arm would move weight forward? I think the crucial thing is where the swing arm mount is on the frame... Ducati actually shortened the bike quite a bit in the GP12 to try and improve the handling. Apparently Rossi and Hayden had very different wheel base settings during this test.

1motion

March 26, 2012 3:38 AM

shortening the wheelbase by moving the wheel all the way forward in the swingarm will make a quicker tighter turning bike and more stable if moved all the way back... but the gain or loss is minimal

as far as using brake heat to heat the tires they kind of already do in a way... the heat in the brake rotor will be transfered to the wheel which in turn keeps the wheel from drawing all the heat out of the tire... but again it would be minimal, tire warmers already get the tire carcass and wheel pretty warm, they are pretty much full temp within a lap or two... a lot of people dont realize that if your tires are warm but your rims are cold it will take a lot longer for your tires to come in as the wheel steals the heat until they even out... ive always thought there was something in the way that stoner lines up last that makes his tires come in quicker and be able to push harder the first lap... if he is the last one to stop rolling then everyone elses tires have been sitting static long

TheHorseWithNoName

March 26, 2012 3:39 AM

@ nick881

just had a quick look at motogp.com and there was no motogp testing at jerez last year, so that makes comparisons even more spurious! My comment isn't really aimed at you, being from the more rational of the VR fanbase, but more toward those who are claiming that Stoner and Lorenzo should be waking up in the middle of the night sweating bullets for fear of VR's 'improving' pace. Let's not forget that mythical 'racecraft' that will bridge any gap less than a second too.

1motion

March 26, 2012 3:41 AM

cont...

if everyone else has been sitting on the grid waiting for stoner then his tires would theoretically still be warmer... i dunno ijust have always figured he does it every single race so there has to be some reason behind it whether it works or its just in his head i dunno

riders used to complain about him taking his sweet time getting to his grid position

nick881 - Unregistered

March 26, 2012 4:00 AM

@HorseWithNoname

hmmmmm... I suppose the next best thing would be to look at the times from the 2011 Jerez GP, it was the 2nd race of the season but uh... Stoner was taken out by Rossi in a perfectly fair overtaking maneuver......

At least the qualifying was dry I think, the time difference between Stoner and Rossi was 1.4s.

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