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ducati fuel problems

He didnt say anything about it hindering his race efforts! All stoner said was the wind didnt help towards the end. Riders run out of fuel all the time, no need to even talk about it..
 
<div class='quotetop'>QUOTE (roger-m @ Jun 30 2007, 04:16 PM) <{POST_SNAPBACK}><div class='quotemain'>do you remember a few years ago when wigy wee (aint got a clue how to spell his name right) ran out of fuel just before the finish line and had to push his bike over.


Didn't Sete Gibernau do this a couple of years back. If I remember correctly he was leading the race, on the last lap and he ran out of fuel. I think Rossi took the victory.
Poor old Sete, he never seemed to have his share of good luck. Apparently, after the crash at Catalunya last year the ambulance was driving him to hospital and the ambulance crashed with Sete in it! Is he cursed or something?!
 
<div class='quotetop'>QUOTE (Rossi4Champion @ Jul 1 2007, 11:15 PM) <{POST_SNAPBACK}><div class='quotemain'>Didn't Sete Gibernau do this a couple of years back. If I remember correctly he was leading the race, on the last lap and he ran out of fuel. I think Rossi took the victory.
Poor old Sete, he never seemed to have his share of good luck. Apparently, after the crash at Catalunya last year the ambulance was driving him to hospital and the ambulance crashed with Sete in it! Is he cursed or something?!
i never really liked gibbers,i went off him after he complained about an out breaking maneuver by tamada,tamada got severely punished ,theres a few other reasons why i dont like him but thats for another thread.
but is was a shame to see him go out through injury.
 
<div class='quotetop'>QUOTE (Rossi4Champion @ Jul 2 2007, 12:15 AM) <{POST_SNAPBACK}><div class='quotemain'>Didn't Sete Gibernau do this a couple of years back. If I remember correctly he was leading the race, on the last lap and he ran out of fuel. I think Rossi took the victory.
Poor old Sete, he never seemed to have his share of good luck. Apparently, after the crash at Catalunya last year the ambulance was driving him to hospital and the ambulance crashed with Sete in it! Is he cursed or something?!

Nah that was something with the bike when he was on the Movistar team. It was hilarious. After the race the first crew guy interviewed went 'oh he ran out of fuel'. Second crew guy interviewed went 'first thing we did was release the fuel from underneath..there was plenty left'. Gresini (I think) then comes on and says there was no fuel. And yeah Sete was jinxed. Didn't you know?

Anyway the 21L rule is a maximum. They definitely put in less than that any time they think they can get away with it. And in fact everyone had enough for the race. I'd say if they ran out on the cooldown lap then they were running the race with their bike at the lightest it could possibly be. Hardly a disadvantage. Though I wonder if they'll be worrying about it come next race.
 
<div class='quotetop'>QUOTE (Bikergirl @ Jul 2 2007, 10:22 AM) <{POST_SNAPBACK}><div class='quotemain'>Nah that was something with the bike when he was on the Movistar team. It was hilarious. After the race the first crew guy interviewed went 'oh he ran out of fuel'. Second crew guy interviewed went 'first thing we did was release the fuel from underneath..there was plenty left'. Gresini (I think) then comes on and says there was no fuel. And yeah Sete was jinxed. Didn't you know?

Anyway the 21L rule is a maximum. They definitely put in less than that any time they think they can get away with it. And in fact everyone had enough for the race. I'd say if they ran out on the cooldown lap then they were running the race with their bike at the lightest it could possibly be. Hardly a disadvantage. Though I wonder if they'll be worrying about it come next race.

my sentiments exaclty.

laguna is notorious for fuel consumption and i remember the other teams were in awe at the fact that that duck could run as quick as it did without worries over fuel.

I just hope that it was good fuel management and not a slight ..... in ducatis armour which the other teams will see as a weakness.

Nicky though did the same so lets hope not

further to that just read on autosport news that ducati are playing with new fairing for later on in season

big fairing we all know works well in straight line but cannot turn that quick in tight turns

hopefully will be ready soon and see if it helps
 
Casey's comments about spinning it up more than usual would suggest that it was a higher then normal fuel consumption and therefore their calculation on the amount of fuel necessary was wrong. This to me says that they were not running a full tank but were running enough to complete the race and get his bike back to the pits and onto the podium carpet!
 
<div class='quotetop'>QUOTE (Bikergirl @ Jul 2 2007, 04:22 AM) <{POST_SNAPBACK}><div class='quotemain'>Anyway the 21L rule is a maximum. They definitely put in less than that any time they think they can get away with it. And in fact everyone had enough for the race. I'd say if they ran out on the cooldown lap then they were running the race with their bike at the lightest it could possibly be. Hardly a disadvantage.

Couldn´t agree more Bikergirl

<div class='quotetop'>QUOTE (TP70 @ Jul 2 2007, 05:13 AM) <{POST_SNAPBACK}><div class='quotemain'>Casey's comments about spinning it up more than usual would suggest that it was a higher then normal fuel consumption and therefore their calculation on the amount of fuel necessary was wrong. This to me says that they were not running a full tank but were running enough to complete the race and get his bike back to the pits and onto the podium carpet!

I don’t see how the calculation was wrong… riders need to finish races in best possible position, but after the checkered flag it matters not; if they cannot throw in a celebration lap, or aren´t able to smoke the tire (would be funny if in the middle of a smoke out they ran out of fuel)… but all this matters not for the race! Stoner finished with a good pace; nor Hopkins, Hayden or Pedrosa could manage. So the fuel calculation mechanic did his job perfectly ok, in fact, he helped out with a bit of less weight.
 
<div class='quotetop'>QUOTE (Bikergirl @ Jul 2 2007, 02:22 AM) <{POST_SNAPBACK}><div class='quotemain'>Anyway the 21L rule is a maximum. They definitely put in less than that any time they think they can get away with it. And in fact everyone had enough for the race. Can someone confirm this ? I was under the impression that the max fuel allowed was reduced, when they switched from 990cc to 800cc, so as to make the bikes slower. i.e. During the race, bikes run with all the allowed fuel but have to tune the engine down so that the fuel lasts the length of race. However, during qualifying, they run at max power. Hence most qualifying/practise top speeds are higher than race ones.

http://www.speedtv.com/articles/moto/motogp/36067/?page=4

http://www.speedtv.com/articles/moto/motogp/37209/?page=2
 
<div class='quotetop'>QUOTE (crvlvr @ Jul 3 2007, 06:39 AM) <{POST_SNAPBACK}><div class='quotemain'>Can someone confirm this ? I was under the impression that the max fuel allowed was reduced, when they switched from 990cc to 800cc, so as to make the bikes slower. i.e. During the race, bikes run with all the allowed fuel but have to tune the engine down so that the fuel lasts the length of race. However, during qualifying, they run at max power. Hence most qualifying/practise top speeds are higher than race ones.

http://www.speedtv.com/articles/moto/motogp/36067/?page=4

http://www.speedtv.com/articles/moto/motogp/37209/?page=2
i am pretty sure your right.
obviously qual speeds are higher due to less fuel and qual tyres but some of the teams were reported as having to de tune during race to conserve fuel

this was one of reasons why the other factory teams were so much in awe of the duck as the team could make the bike so fast and not even worry about the 21l fuel rule.

Ducatis remit was to make the bike as fast as possible and then worry about the handling and regulations

The Big fairing is so aerodynamic down the straights but that is compensated on faster turning tracks in high winds it takes more power to keep it on the track hence why stoner was spinning up more and by doing that he used up just a bit more fuel.

I think the fuel guy got it spot on , there is no need to carry more ballast than is nessessary , but if the wind got any higher he may of run out of fuel on last lap.

Big big decision. i would not have liked to calculate that.

Like i said earlier i did not initally want to think that it was the first ..... in ducatis armour but in hindsight it was just a spot on calculation
 
I wonder is slipstreaming can help significantly with the gas mileage. Even if so, Ducati riders would probably be the only ones who could take advantage of it. apprently, their electronic fuel mgmt system calculates how much fuel is left and how much of the race is left and auto programs the engine for max power.
 
<div class='quotetop'>QUOTE (crvlvr @ Jul 3 2007, 11:53 PM) <{POST_SNAPBACK}><div class='quotemain'>I wonder is slipstreaming can help significantly with the gas mileage. Even if so, Ducati riders would probably be the only ones who could take advantage of it. apprently, their electronic fuel mgmt system calculates how much fuel is left and how much of the race is left and auto programs the engine for max power.
thats quite passable but sounds like it could be dangerous,every time you open the throttle you never quite no how much your going to get
<

have you read about this anywhere or do you have a link ?
 
the lap times show that Stoner was consistent all the way through to the finish (low 1:38s with a dip into the 1:37s a couple times during the race). fuel was not an issue regarding where he placed.

all the data is on mo to gp dot com if you want to look at it.

<div class='quotetop'>QUOTE (roger-m @ Jul 3 2007, 04:01 PM) <{POST_SNAPBACK}><div class='quotemain'>thats quite passable but sounds like it could be dangerous,every time you open the throttle you never quite no how much your going to get
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have you read about this anywhere or do you have a link ?

i'm as skeptical as you are. so much so, that i'd say it's not passable.
 
<div class='quotetop'>QUOTE (roger-m @ Jul 3 2007, 04:01 PM) <{POST_SNAPBACK}><div class='quotemain'>thats quite passable but sounds like it could be dangerous,every time you open the throttle you never quite no how much your going to get
<

have you read about this anywhere or do you have a link ?

<div class='quotetop'>QUOTE <div class='quotemain'>“Electronics is just as important with the 800cc as with the 990cc bikes and we now write our own software programs with the Magneti Marelli electronics package. With our software the fuel consumption over the first half of the race is analyzed and is automatically reprogrammed so that we can have optimum power and minimum consumption over the final part of the race. We do not signal our riders to change programs because the job of the rider is to ride. Our desmodromic distribution uses less fuel at low and medium range than valve springs or pneumatic systems and our even firing order or ‘screamer’ engine uses less fuel that the ‘big bang’ version. Our aerodynamics also help to reduce fuel consumption.” here is the link (again) http://www.speedtv.com/articles/moto/motogp/37209/?page=2
 
<div class='quotetop'>QUOTE (crvlvr @ Jul 4 2007, 12:53 AM) <{POST_SNAPBACK}><div class='quotemain'>I wonder is slipstreaming can help significantly with the gas mileage. Even if so, Ducati riders would probably be the only ones who could take advantage of it. apprently, their electronic fuel mgmt system calculates how much fuel is left and how much of the race is left and auto programs the engine for max power.


<div class='quotetop'>QUOTE (roger-m @ Jul 4 2007, 01:01 AM) <{POST_SNAPBACK}><div class='quotemain'>thats quite passable but sounds like it could be dangerous,every time you open the throttle you never quite no how much your going to get
<

have you read about this anywhere or do you have a link ?

According to my telly guys it's true. They were talking at the beginning of the season that Ducati brought it some F1 people to do this for them. The electronics 'know' the length of the race, the amount of fuel available and how much of the race is done and calculate to give engine maximum fuel (and therefore power) at all times. It's certainly possible. It doesn't leave much over for celebratory laps perhaps but it gets the job done perfectly (at least it has so far this season).
 

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