'09 ACO rules

[HORNDAWG]

They're out! http://www.lemans.org/sport/sport/re...o_gb_2009.html



L.P.

[AU N EGL]

Let the debate begin.


Good eye Dawg

[Adam43]

Originally Posted by ACO on their KERS

Such a system must not be used to get more power but to reduce the fuel consumption.

Interesting, how do you define that? Make sure you don't have more power at the wheels than if it was the engine alone?

The energy recovery stuff is very much a first shot at it IMHO.

Originally Posted by ACO

Competitors who want to develop and use an energy recovery system must first notify the ACO and provide all relevant information concerning its operation, way of use, performances expected, the safety devices in place, etc.
The ACO must be kept informed throughout the development of the system and the car. It may demand to have all the information and to carry out all the checks it deems necessary.

They will keep an eye on how it goes.

[Dani Filth]

Originally Posted by ACO

Porsche 911 GT3 RS (997) (ACO homologation N°: LMGT2-03) :
For all the events excepted the « 24 Heures du Mans »
- To remove 25 Kg to their minimum weight.

[MulsanneMike]

3.4 - Bodywork :
3.4.1 -
c/
• On the complete area situated :
− Between a vertical and transversal plane 1200
mm rearward of the front axle centreline and the
rear trailing edge of the car,
− over a minimum width equal to the overall width
of the bodywork minus 300 mm, distributed
symmetrically about the longitudinal centreline
of the car,
With exception of the cockpit opening (open cars
only), all visible parts of the bodywork must be a
continuous unbroken surface without cut-outs. The
only openings permitted are:
− Air intakes for the engine (cf. Art. 3.4.5. c.),
− Air intakes for the brakes,
− Exhaust pipe outlets,
If other openings are necessary, they must not
protrude over the surface of the bodywork. Only
“naca” air ducts or outlets covered with louvers or
wire meshes are permitted.

Seems to limit what you can do towards the rear of the car...wonder what spurred this clarification....Acura?

There's also a clarification of 3.6.2 that might seem to make illegal Audi Spa wings. Depends on how you read it...frankly one way seems to endorse those!

Furthermore:

c.5 – The surfaces shall be flat and parallel to the
vertical plane passing through the longitudinal centre
line of the car.
c.6 – Apart from the fixations permitted by article
3.6.3.c.2. above, no bodywork elements must be
attached onto the end plates.

Might make this illegal:

http://www.mulsannescorner.com/ACO20...cept-MF001.jpg

[deggis]

I like this one:

The combustion engine and electric motor must be
controlled by the driver through the throttle pedal
(button “push to pass” forbidden)

Also maximum energy stored is 1 MJ, as far as I remember F1 rules say 300 kJ. But that "not to be used to get more power but reduce fuel consump." is quite funny.

Does LMS have its own rule book or where is the two race engine rule?

[AU N EGL]

Originally Posted by deggis

Does LMS have its own rule book or where is the two race engine rule?

No and Not happening

[Dead-Eye]

Originally Posted by MulsanneMike

Might make this illegal:

http://www.mulsannescorner.com/ACO20...cept-MF001.jpg

Is there a problem with your site? Seems like I can't access it.


What's the final word on GT1 engines in LMP1? How do the restrictor sizes compare to last year?

[AU N EGL]

What is printed in RED is a change from last year.

[The Badger]

Originally Posted by Dani Filth

Good , let the show begin .

[MulsanneMike]

Originally Posted by Dead-Eye

Is there a problem with your site? Seems like I can't access it.

Can't see any issues on this end...anyone else?

[Kai]

Yeah, your site was down for a while a few hours ago when I tried to go on it, but it's back up now so no worries.

[HORNDAWG]

I will second that there was a blip earlier today with your site, but it did clear up and is now working just fine it seems.


L.P.

[HORNDAWG]

Originally Posted by Dead-Eye

Is there a problem with your site? Seems like I can't access it.


What's the final word on GT1 engines in LMP1? How do the restrictor sizes compare to last year?

It looks as if they lose .7mm* in size but the coupes get a .5mm break vs. -2.9mm* and about 190mbar of boost for diesel, but the diesel coupe gets a .6mm break, while petrol n/a and turbo restrictors remain the same, but the coupe gets a .5mm increase (break). *Single restrictors


L.P.

[HORNDAWG]

Originally Posted by deggis

Does LMS have its own rule book or where is the two race engine rule?

I believe what you are referring to falls under the Sporting Regulations Art. 7.4.3 (on page 5)


L.P.

[deggis]

Yup, I missed that...

[CTD]

Originally Posted by ACO

The ACO may adjust the performances of a car using such a
system if the performance of the car in one lap is significantly
improved

Will this mean that if under Le Mans, Peugeot runs a lap 2-3 seconds faster than normal, ACO may turn down the boost of the car?

[CTD]

e.5 – A flat and horizontal plate may link the main
rollover structures. However, it must be an integral part
of the rear rollover structure, must not be removable
and must permit to lift the car with a strap.

Is this a step back to the roll hoops of the late 90's?

Found on:
http://www.racingsportscars.com/

[MulsanneMike]

Originally Posted by CTD

Is this a step back to the roll hoops of the late 90's?

Found on:
http://www.racingsportscars.com/

Note may. But potentially yes in execution. Again, I wonder who is driving these clarifications...Acura?

[CTD]

Could the Acura car be bending the rules so much!?

[AU N EGL]

Originally Posted by MulsanneMike

Note may. But potentially yes in execution. Again, I wonder who is driving these clarifications...Acura?

Mike did not the ACO contact ALL the manufactures currently racing to ask for their input into the new rules?

I thought that is what the ACO did this time around.

[HORNDAWG]

Some clarification on the 2011 engine rules from the ACO. here




L.P.

[deggis]

So single configuration (na) P1 engines then, boo Got my hopes up since Bear wrote something about multiple configurations.

[JAG]

Originally Posted by deggis

I like this one:

Also maximum energy stored is 1 MJ, as far as I remember F1 rules say 300 kJ. But that "not to be used to get more power but reduce fuel consump." is quite funny.

Does LMS have its own rule book or where is the two race engine rule?

Recent developments from Audi and Porsche, i.e. direct injection, are with a view, mainly, to improve fuel ecomy and reduce pitstops, this has paid off at Le Mans, but also shorter ALMS events.

I could imagine by 2011, with P2 engines, a hybrid system, and more durable tyres, we could see some amazingly long stints.

[AU N EGL]

Mich tires are already double and triple stinted in many cases.