Andrew Gosling Shoots The Phillip Island Tire Test, Day 1


To test tires, you must have tires to test


Deeply unhappy at Sepang, on top at Phillip Island. Funny things, tires


Ducati competing in the Open class hasn't stopped Cal Crutchlow from getting some serious lean


Dani Pedrosa has lean angle covered too


Communing with the motorcycling gods. Valentino Rossi's pre-ride ritual


Real improvements at Ducati: fit and finish is improved. Seams now have virtually no gap


And the carbon fiber rear swingarm has been dropped in favor of aluminium


Waiting to be shod


99 problems, but Phillip Island ain't one


Ever the showman


As he matures, Dani Pedrosa is learning to relax. More smiles than five years ago


Moto2 are at PI as well, testing Dunlops. Nico Terol plays to the crowds


Ready


No Movistar. Yet.


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To test tires, you must have tires to test Deeply unhappy at Sepang, on top at Phillip Island. Funny things, tires Ducati competing in the Open class hasn't stopped Cal Crutchlow from getting some serious lean

Comments

Come on Andrew.... I cant see

Come on Andrew.... I cant see Valentinos' eyes :-)

Total votes: 14

I guess Cal got tired of his

I guess Cal got tired of his Spidi suits ripping open!

Total votes: 14

May I ask a dumb question...?

What is the technical purpose of the mesh over the ends of the exhaust pipes? I can't imagine the nesting of small animals is much of a problem in the sterile environs of the modern MotoGP garage.

Total votes: 12

Engine allocations

With just 5 engines to last the entire season, they can't afford to lose an engine to mishap. They don't want gravel entering the engine in a crash and causing damage they can't repair.

Total votes: 12

Thank you David

Of course, makes sense.

Total votes: 10

So David, now that Ducati

So David, now that Ducati have gone "open" and thus have more than 5 engines per bike does that mean the ends of the exhausts will be open too….? (muffled giggles from the back of the class)

Total votes: 12

Interesting...

Is that cables for working an EXUP type valve attached to the pipe under the tail unit of the Ducati that I can see?

Total votes: 12

No, I don't think so

Assuming you mean the cables running to the box right near the end of the exhaust, I think it more likely to be an exhaust gas sensor (O2?). An EXUP style valve wouldn't be so near the end of the exhaust adn, for that matter, would not be likely used in racing.

That said, I may be wrong!

Total votes: 9

Possibly?

Emergency butterfly block off system? Like an EXUP valve but different? I'm sure someone knows exactly what it is and why it's there. :)

Total votes: 9

I'm fairly sure it's not an O2 sensor...

Most, if not all, of the bikes in this class will be using a seperate 02 sensor for each cylinder and they usually only have a single lead coming from them.

The Aprilia RSV4 World Superbike machines have something very similar looking attached to their exhaust system, as do the ART bikes. Right where you'd expect to see a EXUP type butterfly valve, with two actuator cables coming out, just like my old K6 GSX-R.

Have a look at a partially built 2014 ART bike here...

http://www.gpone.com/images/ARCHIVIO/2014/Foto/SUPERBIKE/APRILIA/telaiop...

It's missing the two cables, but it's clearly visible directly below the footpeg.

Also, check out these pics of the Superbike...

http://www.asphaltandrubber.com/wp-content/gallery/2012-aprilia-rsv4-in-...

http://www.wallsave.com/wallpapers/1600x1126/superbikes/349020/superbike...

The Aprilia exhaust has all the headers joining up and exiting through a single outlet but the arrangement the Ducati uses, with each side of the vee having its own 2-1 pipe, you'd need a seperate butterfly valve for each bank of cylinders. Ideally situated near to the point where the two pipes have joined up. It's hard to tell exactly from the above image, due to the angle it was taken from, but it looks to me like that's right where it is.

Perhaps the site proprietor can request that Mr Gosling get in nice and close for a more detailed shot? ;)

Total votes: 8

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