Australian GP 2009 ( finally! )

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Agerasia
Agerasia
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Joined: 14 Jan 2009, 14:08

Re: Will new diffusers be installed before quali?

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Dukeage wrote:How long would it take to change a diffuser on an F1 car? It's not a quick job like changing a front wing but it sounds remotely possible to do between FP1 and FP2, especially if you are McLaren.
You'd probably go slower. As has been explained this is just one part of the jigsaw on an F1 car.
These cars are a fine balancing act between all components. It's not simply a case of whacking a new diffuser on (even if you could build one quickly).
"badically pressuring rosnerg " Ringo 05/10/2014

Shi Ruan
Shi Ruan
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Joined: 07 Oct 2007, 00:42
Location: Nantucket, MA, USA

Re: Aussie GP 2009--finally!

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ESPImperium wrote:
myurr wrote:Don't know if anyone else has mentioned this or even if anyone else agrees with me, but I think the engines this year sound terrible. It's like they're short shifting all the time, and I've noticed both KERS and non-KERS cars having weird sudden jumps in the revs which sounds really strange. I can understand that in the KERS cars as the power kicks in, but it was happening on the Brawns as well.

Does everyone else hate the engine noise this year?
Im gonna say something totally left-field here, but look at Rubhinos on-board camera when he set his P2 time in the last 2 mins of Quali 3. Look at his right thum hit a button and at the same time the engine revs leap in the audio, and about a second or two later his engine revs die again... Im gonna say theres a KERS system on that car, or both Brawn cars!!!

I'm pretty sure that is the p2p button they've had for a while... you know, run the engine ragged for a few moments and then return it to the normal, more conservative map.

Could be wrong though.
^----Raving Lunatic----^

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ISLAMATRON
0
Joined: 01 Oct 2008, 18:29

Re: Aussie GP 2009--finally!

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Shi Ruan wrote:
ESPImperium wrote:
myurr wrote:Don't know if anyone else has mentioned this or even if anyone else agrees with me, but I think the engines this year sound terrible. It's like they're short shifting all the time, and I've noticed both KERS and non-KERS cars having weird sudden jumps in the revs which sounds really strange. I can understand that in the KERS cars as the power kicks in, but it was happening on the Brawns as well.

Does everyone else hate the engine noise this year?
Im gonna say something totally left-field here, but look at Rubhinos on-board camera when he set his P2 time in the last 2 mins of Quali 3. Look at his right thum hit a button and at the same time the engine revs leap in the audio, and about a second or two later his engine revs die again... Im gonna say theres a KERS system on that car, or both Brawn cars!!!
I'm pretty sure that is the p2p button they've had for a while... you know, run the engine ragged for a few moments and then return it to the normal, more conservative map.

Could be wrong though.
Yes, advance timing and highest engine map, would be the best guess.

donskar
donskar
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Joined: 03 Feb 2007, 16:41
Location: Cardboard box, end of Boulevard of Broken Dreams

Re: Aussie GP 2009--finally!

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DaveKillens wrote:
The future is always uncertain, but so far it looks like we're going into a very interesting season.
I hope you're right, because we might be heading for the opposite - a very boring season with one (or possibly two) makes dominating.

Worse, we might find all these protests undermining FOTA's unity. I think FOTA is our best hope for a healthy F1 future.
Enzo Ferrari was a great man. But he was not a good man. -- Phil Hill

timbo
timbo
111
Joined: 22 Oct 2007, 10:14

Re: Aussie GP 2009--finally!

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alelanza wrote:
myurr wrote:Don't know if anyone else has mentioned this or even if anyone else agrees with me, but I think the engines this year sound terrible. It's like they're short shifting all the time, and I've noticed both KERS and non-KERS cars having weird sudden jumps in the revs which sounds really strange. I can understand that in the KERS cars as the power kicks in, but it was happening on the Brawns as well.

Does everyone else hate the engine noise this year?
Yes yes, i heard that in several cars, strangely enough the williams was one of them. However when Kimi used it along w/the on screen graph, it didn't seem very noticeable noise wise. That being said they only showed it for a very short period and it was barely touched during that time. It was also strange hearing LH's radio telling him his kers was fully charged, i would have expected he would have known w/o being told, so i guess big issues are still being worked out on that unit. Also, when the new graph came up i thought we'd finally be able to see braking intensity, i've often wondered why the graph is simply on and off...
I noticed that too. I think that is something with image/sound transmission.

ESPImperium
ESPImperium
64
Joined: 06 Apr 2008, 00:08
Location: Glasgow, Scotland

Re: Aussie GP 2009--finally!

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Heres my predictions for the first pit stops:

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Ive made up a rough idea made from a Excell document to make thatlist.

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ISLAMATRON
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Joined: 01 Oct 2008, 18:29

Re: Aussie GP 2009--finally!

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ESPImperium wrote:Heres my predictions for the first pit stops:

Image

Ive made up a rough idea made from a Excell document to make thatlist.

Why wouldnt you assume that the average fuel per lap is 2 kg since that is the difference between the 2 Brawns and assuming they would have to come in on different laps and so Rubans 1 lap after JB? Difference between the 2 Ferrari's is 1.5.

Tech_Racer
Tech_Racer
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Joined: 28 Mar 2009, 19:28

Re: Aussie GP 2009--finally!

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ESPImperium wrote:Heres my predictions for the first pit stops:

Image

Ive made up a rough idea made from a Excell document to make thatlist.
Great list ESPImperium but I think the fuel burn rate is a bit higher - about 2.8 kg per lap. Also, sorting the list by grid order would be helpful.

Having the car weight information is fantastic! Although it has taken away a bit from the race. Maybe this information could be revealed after the start to enhance the race experience and commentary.

It looks like Heidfeld has enough for a 1 stop strategy.

I think the weight panalty is about 0.1s for 1 lap of fuel. That means that Alonso would be about 0.25s faster per lap (based on fuel load and Q2 lap times). That's not fast enough to pass at Albert park (not easily anyway). Cars behind Alonso are heavier again back to Buemi so expect a bit of a train forming behind Heidfeld.

kilcoo316
kilcoo316
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Joined: 09 Mar 2005, 16:45
Location: Kilcoo, Ireland

Re: Will new diffusers be installed before quali?

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xpensive wrote:You be surprised kilcoo, in 1990 the Arrows team changed their Porsche V12 for a Cosworth V8 between quali and race.
and how'd they get on?


As far as I recall, the mighty footwork team didn't exactly put down sustained efforts at points, never mind race wins!



They can change whatever they want - big changes mean no setup and therefore no points (unless there is a fluke of biblical proportions by the race engineer). You know that.

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gcdugas
3
Joined: 19 Sep 2006, 21:48

Re: Aussie GP 2009--finally!

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I am very eager to see just how easy it is to overtake. In Moto-GP if you have trouble in quali you can still easily move up the grid. This to me is what we should be watching for. Normally a car on the back row is sunk but if the cars can pass easily, then the Toyotas for example, should be able to get points. Lats see the ease in overtaking. What more could spice up the show and take the luck of getting balked out of the equation?
Innovation over refinement is the prefered path to performance. -- Get rid of the dopey regs in F1

ESPImperium
ESPImperium
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Joined: 06 Apr 2008, 00:08
Location: Glasgow, Scotland

Re: Aussie GP 2009--finally!

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Updated it a little with higher fuel useage rate and a little more on race distance etc...

Image

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machin
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Joined: 25 Nov 2008, 14:45

Re: Aussie GP 2009--finally!

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Again for those who refuse to understand, EVERBODY IS ON FUMES IN Q1 & Q2, it is only in Q3 that qualify with race fuel loads on board... It has been this way for the last 3 YEARS.
Its still interesting that they put so little fuel into Lewis' car though.... normally fast cars that start near the back put loads of fuel in knowing they'll be quicker than the people around them and will jump some of the others ahead when those cars ahead have to stop earlier...

Maybe I've answered my own query though... the above is normal for fast cars.. :lol:
COMPETITION CAR ENGINEERING -Home of VIRTUAL STOPWATCH

myurr
myurr
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Joined: 20 Mar 2008, 21:58

Re: Aussie GP 2009--finally!

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machin wrote:
Again for those who refuse to understand, EVERBODY IS ON FUMES IN Q1 & Q2, it is only in Q3 that qualify with race fuel loads on board... It has been this way for the last 3 YEARS.
Its still interesting that they put so little fuel into Lewis' car though.... normally fast cars that start near the back put loads of fuel in knowing they'll be quicker than the people around them and will jump some of the others ahead when those cars ahead have to stop earlier...

Maybe I've answered my own query though... the above is normal for fast cars.. :lol:
Could also be due to the changes in pit lane speed limit reducing the window of opportunity. Or the dynamics of the car (remember the bottoming out when running with heavy fuel loads). Or tyre wear causing a 2 stop to be optimum for the McLaren.

Tech_Racer
Tech_Racer
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Joined: 28 Mar 2009, 19:28

Re: Aussie GP 2009--finally!

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machin wrote:
Its still interesting that they put so little fuel into Lewis' car though...
This might be due to tire wear issues - I don't think Lewis will want to do a 1 stop strategy. About 19-20 laps is 'normal' for a 2 stop strategy so Hamilton is slightly lighter than that.

myurr
myurr
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Joined: 20 Mar 2008, 21:58

Re: Aussie GP 2009--finally!

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ESPImperium wrote:Updated it a little with higher fuel useage rate and a little more on race distance etc...

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The fuel usage figure that I saw was 2.42kg per 5km on average, with Melbourne being slightly higher at 2.48kg per 5km. Hope that helps. I'm sure you have, but don't forget to round down rather than leave it to eXcel to round up as it sees fit.