ACO Spec Vs. FIA GT Spec

[jhansen]

I tried to get an answer on this in the ALMS forum, but no luck. I'll try here.

If I understand correctly FIA GT is running to ACO spec this year. In fact, it was easy to see the 550's and 575's were running the narrower wings at Monza. But I'm not sure I understand the following two pictures:

Lambo ALMS 2004

http://www.americanlemans.com/galler...fying/7_lg.jpg

Lambo FIA GT 2005

http://www.project-lemans.de/index.p...7&key=16&hit=1


Is it me, or does the Lambo appear to have a narrower wing in the 2004 pic versus the 2005 pic? Both races were run under ACO specs. Were they allowed a larger wing this year in FIA GT? I recall one of the grumblings about the K-B Lambo was that it lost downforce due to the narrow wing. Any comments?

[jhansen]

Here is a better pic of the Lambo from the Monza test day:

http://www.project-lemans.de/index.p...5&key=14&hit=1

[Jeffrey-Lee]

Maybe the ACO rules changed for 2005? I believe the width of the rearwing on the FIA gt cars depends on the with of the windscreen base, hence the lambo has a wider wing than the Saleen.

[jhansen]

But that was the rule last year as well if I recall. The Pagani had a very narrow wing for the same reason.

[tblincoe]

for some reason the Lambo is allowed to run a bigger wing... i dunno.

[Asa]

Autosport magazine reported that the Lambo is allowed to run a bigger air restrictor this year, but no info about its wing size.

[Tom V]

Originally Posted by jhansen

Is it me, or does the Lambo appear to have a narrower wing in the 2004 pic versus the 2005 pic? Both races were run under ACO specs. Were they allowed a larger wing this year in FIA GT? I recall one of the grumblings about the K-B Lambo was that it lost downforce due to the narrow wing. Any comments?

When the Lambo made it's debut in FIA GT last year it already had the same big wing as the one they used in Monza last week. Nothing has changed there.

It's only for the ALMS races the wing had to be shortened. I remember reading an article at the time which explained why the wing had to be shortened but I forgot the exact reason.

[jhansen]

The Lambo did not have to run to ACO specs in the FIA GT last season. That's why it had a bigger wing. However, the K-B Lambo had to run the ACO spec wing in the ALMS and complained of low downforce. Fast forward to 2005. FIA GT is now running ACO specs. Look at the Ferrari 550's wings this year compared to last year. But the Lambo didn't change. I'm just wondering why.

Just to show the difference, Ferrari 550M in 2004:

http://www.project-lemans.de/index.p...45&key=6&hit=1

Ferrari 550M in 2005:

http://www.project-lemans.de/index.p...7&key=18&hit=1


Thanks project-lemans.de for the great pics.

[tblincoe]

after looking more at the different pics i can also see that the ACEMCO Saleens at Sebring had wider wings than the Konrad Saleens at Monza... i just dont get it!

[Jeffrey-Lee]

The Lambo did not have to run to ACO specs in the FIA GT last season.

No one had to run to ACO regs last season in FIA GT....

Everyone had the wide wings. Except the Maser, but that was an extra sanction.

[jhansen]

Yet nobody knows why it is still running the wide wing this year...

[paul-collins]

Maybe just no one's bothered to complain?

[SALEEN S7R]

Dont forget guys, the ALMS is still running to the ACO regulations as of 2003 if I remember correctly, this would explain why the rear wings differ in size to those of the cars in FIA GT and the LMES.

[tblincoe]

Originally Posted by SALEEN S7R

Dont forget guys, the ALMS is still running to the ACO regulations as of 2003 if I remember correctly, this would explain why the rear wings differ in size to those of the cars in FIA GT and the LMES.

i'm pretty sure that was just for LMPs and even so, i think that the wing size of the GT1/GTS cars haven't fluctuated over that time period

[lj79]

alms have the smaller wings too