[WEC Race] 2021 6 Hours of Monza

[NaBUru38]

The 2021 FIA WEC 6 Hours of Monza will be held on Sunday 18 July.


There's 37 entries (5 Hypercars, 12 LM2, 4 GTE-Pro, 16 GTE-Am)



https://sportscar365.com/lemans/wec/...sel-withdraws/


SCHEDULE

[Adam43]

Thread stickied.

Oooo, this is exciting. Sportscars. Monza. Woo.

[Napolis]

Off to test 007 at Paul Riccard on Tuesday. On to Goodwood with 004S and 007 LMH. Then on to Monza. Rock and Roll.

[Aysedasi]

See you at Goodwood!

[GingerPixel]

Wouldn't it be awesome if they took the chicanes out like they do for testing sometimes?

[Pandamasque]

It would. But that configuration of Monza is likely below the FIA safety grading required for WEC due to insufficient runoff in della Roggia. Unfortunately, it cannot be extended, as trees behind it are part of the national park, as far as I know.

[chernaudi]

Yep, only race track of it's stature that I know of that's in the middle of a public park. It means that if trees and such need cut or moved it can't happen without the approval of the local government, but then again, being in the middle of that park is a big part of why so much footage of testing and track days comes out of Monza.

[NaBUru38]

The Autódromo Hermanos Rodr?*guez, not to mention Albert Park and Detroit.

[Pandamasque]

Originally Posted by NaBUru38

The Autódromo Hermanos Rodr?*guez, not to mention Albert Park and Detroit.

Not sure about the first one (isn't it integrated into a stadium?), but the other two are temporary facilities, which don't coexist with a national park all year round, just like Monte Carlo or La Sarthe, which are built and taken apart after the event, or even Circuit Gilles Villeneuve, which becomes a public area in between the races.

[crmalcolm]

Very much a park circuit:

https://www.mexicogp.mx/wp-content/uploads/2019/10/03MAPA_Y_SERVICIOS_grande.png

[Aysedasi]

Originally Posted by Pandamasque

Not sure about the first one (isn't it integrated into a stadium?), but the other two are temporary facilities, which don't coexist with a national park all year round, just like Monte Carlo or La Sarthe, which are built and taken apart after the event, or even Circuit Gilles Villeneuve, which becomes a public area in between the races.

Not that much of Le Mans is taken apart after the event. Some armco at the beginning of the Mulsanne, the tyres at the chicanes, but not a lot else.

[canaglia]

as far I've been told by le mans residents, 24H le mans track is basically made of first section of bugatti circuit, extended further after dunlop chicane to tetre rouge entry + main state/regional road from tetre rouge to mulsanne corner + extra urban road from mulsanne corner to the entry of porsche sector + porsche sector to ford chicanes to get inside again circuit bugatti. Porsche sectors and the segment between dunlop chicane to tetre rouge are bugatti circuit private roads sometimes open, sometimes closed to traffic.
Monza track made of f1 track + inner layouts and the old oval is in the middle of monza park, a lot of times in the recent past there have been proposals to add more grandstands or change the layout (the last one back in 2017 or 2018 with a modified and slower curva grande) but since monza park and track is a critical asset for regional tourism, the situation is an eternal impasse because of huge political and economical interests involved.
Albert park is made of road streets around albert park lake.
Until early '00 even spa was a not permanent track with segment of the track from blanchimont to kammel straight made of public roads. Since 2007 after the restyling is a full private circuit.

[Aysedasi]

Originally Posted by canaglia

as far I've been told by le mans residents, 24H le mans track is basically made of first section of bugatti circuit, extended further after dunlop chicane to tetre rouge entry + main state/regional road from tetre rouge to mulsanne corner + extra urban road from mulsanne corner to the entry of porsche sector + porsche sector to ford chicanes to get inside again circuit bugatti. Porsche sectors and the segment between dunlop chicane to tetre rouge are bugatti circuit private roads sometimes open, sometimes closed to traffic.

Er yes, but very little of the circuit is actually 'taken apart' after the race. You can drive along the Mulsanne from the exit of Tertre Rouge all the way around to the very beginning of the Porsche Curves. AFAIK, aside from the removal of the blocking tyres, floppies etc. very little actually gets removed.

[canaglia]

Originally Posted by Aysedasi

Er yes, but very little of the circuit is actually 'taken apart' after the race. You can drive along the Mulsanne from the exit of Tertre Rouge all the way around to the very beginning of the Porsche Curves. AFAIK, aside from the removal of the blocking tyres, floppies etc. very little actually gets removed.

not surprising, being public roads the difference between the race days and the normal days guess are just tyres and sponsor boards afterall.
Also in monaco some of kerbs are normally left before/after the race, like the ones of grand hotel hairpin and on sides of tunnel entry.

[TF110]

So what top speeds are we expecting here? I think thatll be in interesting statistic to look for in hypercar with Toyota and Glickenhaus. Of course stint lengths too

[Pandamasque]

In recent times LMP2s used to do about 315 km/h. I'd expect around 315-320 for LMH and 305-310 for LMP2, unless of course P2s did 315 with high downforce bodywork for whatever reason.

Originally Posted by Aysedasi

Not that much of Le Mans is taken apart after the event. Some armco at the beginning of the Mulsanne, the tyres at the chicanes, but not a lot else.

My point was that you can't go to Le Mans on a random weekend in March and watch a track day or a GT3 test day on the full 13km circuit like in Monza.

[Adam43]

Originally Posted by Aysedasi

Er yes, but very little of the circuit is actually 'taken apart' after the race. You can drive along the Mulsanne from the exit of Tertre Rouge all the way around to the very beginning of the Porsche Curves. AFAIK, aside from the removal of the blocking tyres, floppies etc. very little actually gets removed.

I know we are digressing, but it is quite interesting.

I’ve been in Monaco when they are preparing the track. Crikey that is a lot of work. Obviously not helped by the smallness of the place.

Not quite, but by comparison for Le Mans they just need to close the roads.

One thing I haven’t seen is the new arrangement at Arnage.

[canaglia]

Originally Posted by TF110

So what top speeds are we expecting here? I think thatll be in interesting statistic to look for in hypercar with Toyota and Glickenhaus. Of course stint lengths too

Provided that I ignore how toyota, alpine and 007 are free to use a low drag/downforce wings setting, similiar to monza, also portimao has a long straight anticipated by a fast corner.
During portimao onboard videos, toyota was reaching 315km/h as top speed, alpine 312-314km/h. Based by this, I think in monza hyp and alpine could be in the range of 320-325km/h.
About stint lenghts, here is a bit more difficult to predict... at example I thought that portimao stints were going to be shorter than spa considering that spa is a fast track with cars usually using high speeds for most of the time lap while portimao has 5 important start and stop corners.
Considering that monza has an average speed more comparable to spa than portimao, I guess there will be also similiar stint lenght:
about 48 minutes for alpine, 52-53 for toyota and I guess 007 will be able to stay on track 2-4 minutes longer, depending if will be able to run one or two extra lap.

[Adam43]

Makes sense that you use your fuel/energy quicker on tracks where you are on the throttle for longer.

[canaglia]

yes, but staying more time on high gearbox speeds, means also using for more time longer ratios that make torque release much more "diluted" compared to 1st or 2nd speed. Infact this + a low downforce setting is basically the reason why f1 cars at spa consume less fuel than slower tracks like abu dhabi, despite spa being 1,5km longer.

[Adam43]

mpg yes, but this is stint length in time not distance.

If you’re on full throttle 84% of the time you will use your fuel up twice as fast as if you are on full throttle 42% of the time.

[canaglia]

stint lenght is in time but related to torque "usage" according to new bop parameters. But anyway, evidence shown that hyp and lmp1 had lower consumes at portimao anyhow... I took spa as reference just because shares more similiarities with monza.

" If you’re on full throttle 84% of the time you will use your fuel up twice as fast as if you are on full throttle 42% of the time."

yes... in a world where all cars have a single speed with a close to 1:1 ratio...
You push throttle 84% of the time in 1st or 2nd speed and a racing car will likely do 300m with 1L of fuel, you push throttle 84% of the time in higher speeds and your car will consume less anyhow.

[Adam43]

Exactly, you’re spot on, if you deploy the torque more often you will use it quicker. I was avoiding going there

The stints were longer in distance at Spa (consumption l/100km, or KW/km) but shorter in time (consumption l/hour, or kW/hour).

[canaglia]

gave a quick eye on alkamel site and doing some quick math
(25 x 7,003 and 37 x 4,653)
toyotas had an average 172-175km long stint in both races.
Guess I can conclude that spa stint was shorter because spa is a faster track.
In theory monza stints could even be slightly shorter than spa as well.

[Adam43]

I agree. The other part of the distance and time triangle is speed.

Just for info, the stint lengths in time and distance are in the attachments of this post. https://tentenths.com/forum/showpost...&postcount=179

The Toyotas were similar in distance. For the LMP2 and Alpine it was a bigger difference. But, as you point out, the stint length in time is where there is more variation.