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  #16  
Old 01-24-2012, 04:43 PM
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Originally Posted by LHamilton_w View Post
I just hope the car's fast enough to give Audi a good challenge.
That is one funny joke
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  #17  
Old 01-24-2012, 06:25 PM
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The fin is per rule...part of the "solution" to the high speed yaw flipping problem....

Nothing you can do about that, just like the nasty green house of the DP of old....newer one is nicer, but the car is still horribly outdated....makes for good racing though...

Its not entirely a surprise if this is a 2 year program. 2014 will be another rule set again, and a new car is a big commitment....
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Last edited by RacingManiac; 01-24-2012 at 06:30 PM.
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  #18  
Old 01-24-2012, 08:06 PM
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Originally Posted by RacingManiac View Post
The fin is per rule...part of the "solution" to the high speed yaw flipping problem....
Thanks for that clarification RM... makes sense in both series.

Plus, great square footage for sponsors.
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  #19  
Old 01-24-2012, 09:23 PM
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That was F1's reason for running it....

Then F-duct happened...
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  #20  
Old 01-24-2012, 09:46 PM
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Originally Posted by RacingManiac View Post
Any similarity you draw really is just in your head....the greenhouse of the current crop of LMP Coupes are a lot smaller now than they were in the past, and much of the aero design philosophy has evolved quite a bit....
You don't see any resemblance in the shape of the windshield and the angle of slope coming down off the back of it to the GT-One? Try picturing it without the shark fin.
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  #21  
Old 01-25-2012, 02:42 AM
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Torsion bars as suspension springs?

And why do they have one electric engine in front and another in the back? don't the rules only alow for one electric engine beng used in one axle? Are they using the front one has a generator and the back one to propell?
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  #22  
Old 01-25-2012, 03:07 AM
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They are now evaluating which one, front or rear, to use.
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  #23  
Old 01-25-2012, 06:40 AM
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Originally Posted by ruim20 View Post
Torsion bars as suspension springs?
Same as a lot of recent cars, from R10 to R18 and the Peugeots...They offer less hysteresis and are easier to package in some cases...
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  #24  
Old 01-25-2012, 07:15 AM
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Same as a lot of recent cars, from R10 to R18 and the Peugeots...They offer less hysteresis and are easier to package in some cases...
They still use dampers?

And are the torsion bars used in the wishbone axles? Or is it another kind of setup?
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  #25  
Old 01-25-2012, 08:38 AM
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Originally Posted by ruim20 View Post
They still use dampers?

And are the torsion bars used in the wishbone axles? Or is it another kind of setup?
Mulsanne's Corner: 2003 Bentley Speed 8
Mulsanne's Corner: 2006-2008 Audi R10
Mulsanne's Corner: 2009 Acura ARX-02a
Mulsanne's Corner: 2006-2008 Porsche RS Spyder
Mulsanne's Corner: 2007-2009 Peugeot 908 HDi FAP

They are no different to how most typical pushrod suspension are actuated. But replacing the spring that sits usually co-axial with the damper, with a torsion spring(ie, a tube) sits on the axis of the bellcrank/rocker. The rocker is keyed/splined to the tube and the tube is keyed/splined to fixed ends to the chassis. F1 moved to torsion spring a long time ago(most cars anyway), Bentley Speed 8 in 2003 IIRC was the first modern LMP car to use torsion bar.

There are some peculiarity with the examples above. R10's rear corner dampers(ones sitting on the side of the bell housing, instead of the one up top) are "pull" damper, as in in compression they extend instead of contract, I'd imagine the choice was packaging. The Benley pic shows the front corner damper sitting above the monocoque, which is less common now as Peugeot and Audi solution tend to bury the dampers within the monocoque. RS Spyder solution is unusal as its dampers are all sitting in front of the monocoque.
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  #26  
Old 01-25-2012, 11:09 AM
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Originally Posted by RacingManiac View Post
Mulsanne's Corner: 2003 Bentley Speed 8
Mulsanne's Corner: 2006-2008 Audi R10
Mulsanne's Corner: 2009 Acura ARX-02a
Mulsanne's Corner: 2006-2008 Porsche RS Spyder
Mulsanne's Corner: 2007-2009 Peugeot 908 HDi FAP

They are no different to how most typical pushrod suspension are actuated. But replacing the spring that sits usually co-axial with the damper, with a torsion spring(ie, a tube) sits on the axis of the bellcrank/rocker. The rocker is keyed/splined to the tube and the tube is keyed/splined to fixed ends to the chassis. F1 moved to torsion spring a long time ago(most cars anyway), Bentley Speed 8 in 2003 IIRC was the first modern LMP car to use torsion bar.

There are some peculiarity with the examples above. R10's rear corner dampers(ones sitting on the side of the bell housing, instead of the one up top) are "pull" damper, as in in compression they extend instead of contract, I'd imagine the choice was packaging. The Benley pic shows the front corner damper sitting above the monocoque, which is less common now as Peugeot and Audi solution tend to bury the dampers within the monocoque. RS Spyder solution is unusal as its dampers are all sitting in front of the monocoque.
Thank you for that, had never given it much thought, i'm allways more interested in aero.
It does do wonders for packaging doesn't it, the Acura rear suspension is something else, the way they put the dampers inside the Engine/Gearbox casing.
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  #27  
Old 01-25-2012, 05:30 PM
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  #28  
Old 01-25-2012, 06:47 PM
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Originally Posted by 250gto boy View Post
That is one funny joke
Idk, with Peugeot out, seems like everything is Audi's for the taking.
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  #29  
Old 01-26-2012, 01:38 AM
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Quote:
Originally Posted by LHamilton_w View Post
Idk, with Peugeot out, seems like everything is Audi's for the taking.
I think they already have the crown or, even more, both WEC and Le Mans crowns. If they had a really strong contender like Peugeot was, they would push hard and could make some mistakes. With seemingly no equally fast car in the field they have a possibility to just go for a ride each time avoiding any force majeurs and bringin home top results. Having in mind their German origins, I doubt they will relax and mess everything up like others could do. On the other hand, don't know if we should expect an honest on-track battle between Audi cars like in 2011 or just 'take the whole podium' policy.
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  #30  
Old 01-26-2012, 02:21 PM
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Here's some exterior sound.

http://www.youtube.com/watch?feature...&v=eRECqhIZwIA
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