[LM24] NASCAR returns to Circuit de la Sarthe...

[broadrun96]

Originally Posted by canaglia

I barely followed nascar in my life but if actual nascar cars are still sticking to those caveman pushrod 5.8L V8, as far I know, teams used to have fresh engines at each race, unless if a engine was still healthy after a race in poor demanding short ovals like bristol.
Of course is quite unlikely that kind of engine could last 24 hours if set to revving up to >9000rpm all the time as they normally do.

Bristol ain't easy on the engines at all, the up and downs and high banking meant they were still torn down every weekend. With the last update I believe the engines are sealed and counted to start the season. Last I knew it was equal to 2 races per engine for the season so think that's 18 engines with an extra allowance for Daytona I believe. I have not seen Next Gen engine limits lately

Originally Posted by joeb

How many hours does a nascar engine typically go through before rebuilds? I have no clue, but this makes me think they may end up with an entirely un-nascar powertrain for the hybrid option. Possibly the unit that will be used in the new Caddy lmdh?

I was thinking possibly a powertrain test for the new Vette hybrid system but Caddy plus spec hybrid option as well

[Mike E]

Maybe, instead of G56 being all about new tech, it could just be run what you brung.

2023: NASCAR
2024: Moto GP
2025: F2
2026: Guy Martin on a bicycle, slipstreaming a truck

[canaglia]

Originally Posted by Mike E

Maybe, instead of G56 being all about new tech, it could just be run what you brung.

2023: NASCAR
2024: Moto GP
2025: F2
2026: Guy Martin on a bicycle, slipstreaming a truck

A motogp would probably get 400km/h on straight before first chicane

[Simmi]

A full spec Super GT at their fastest would have been amazing too.

[Mike E]

Or that...

[canaglia]

Originally Posted by Simmi

A full spec Super GT at their fastest would have been amazing too.

A toyota GR010 get kicked at LM by a toyota supra GT500 would be quite hilarious indeed

[isynge]

Originally Posted by Simmi

A full spec Super GT at their fastest would have been amazing too.

I seem to remember Sam Collins on a Midweek Motorsport (or other bit of coverage) opining that a JGTC car at its prime showing up at Le Mans or anywhere else against LMS / ALMS opposition would absolutely clean their clocks. If we could have that counterfactual I'd totally book tickets to see it.

[J Jay]

Originally Posted by isynge

I seem to remember Sam Collins on a Midweek Motorsport (or other bit of coverage) opining that a JGTC car at its prime showing up at Le Mans or anywhere else against LMS / ALMS opposition would absolutely clean their clocks. If we could have that counterfactual I'd totally book tickets to see it.

Quick correction - JGTC went up to 2004, before the Super GT rebrand and regulation update. Cars up to then would have been quick, but clearly behind the factory prototypes of the era.

The only real point of comparison are Fuji lap times when both series ran there in clear conditions. At their fastest, GT500 would have run the factory hybrids close. At Le Mans, I have my doubts that this would be directly replicated - GT500 run draggier than prototypes, even before taking low-downforce bodywork into contention.

If it were to happen with LMH/LMDh, I reckon GT500 would do the business, even taking into account a relative lack of top speed.

[isynge]

Originally Posted by J Jay

Quick correction

Apologies. I won't post again.

[canaglia]

Originally Posted by J Jay

Quick correction - JGTC went up to 2004, before the Super GT rebrand and regulation update. Cars up to then would have been quick, but clearly behind the factory prototypes of the era.

The only real point of comparison are Fuji lap times when both series ran there in clear conditions. At their fastest, GT500 would have run the factory hybrids close. At Le Mans, I have my doubts that this would be directly replicated - GT500 run draggier than prototypes, even before taking low-downforce bodywork into contention.

If it were to happen with LMH/LMDh, I reckon GT500 would do the business, even taking into account a relative lack of top speed.

Not so sure about this, there was an user here named japanese_samurai who used to post lots of stuff about super GT, he used to post lots of articles from japanese twitter and magazines, and, hoping to recall well, toyota/lexus were always the cars with the higest marked top speed at fuji (up to about 310km/h). Which isn't that slower compared to top speed rebellion R13 used to mark when it had over 700hp.
Not to consider that 007 and GR010 at LM are in the range of >320-330km/h, which isn't a crazy top speed afterall.
In my opinion if a GT500 would run at LM, it would lack of some top speed of course, but it would qualify under 3.20 without even pushing that hard.... in fast corners like porsche or tetre rouge would look like f1 compared to LMH, despite having almost the same weight.

[J Jay]

Originally Posted by canaglia

Not so sure about this, there was an user here named japanese_samurai who used to post lots of stuff about super GT, he used to post lots of articles from japanese twitter and magazines, and, hoping to recall well, toyota/lexus were always the cars with the higest marked top speed at fuji (up to about 310km/h). Which isn't that slower compared to top speed rebellion R13 used to mark when it had over 700hp.
Not to consider that 007 and GR010 at LM are in the range of >320-330km/h, which isn't a crazy top speed afterall.

I think we're actually in agreement. I said compared to LMH/LMDh, GT500 will be a few seconds faster. I would have said 3:20 at a push, below that on occasion, which would put them just behind the 919/R18 at their pomp.

[NaBUru38]

What if a Super GT500 had the same fuel flow limiter as the Le Mans Hypercars?

[canaglia]

Originally Posted by NaBUru38

What if a Super GT500 had the same fuel flow limiter as the Le Mans Hypercars?

LMH don't use fuel flow anymore, power/torque curve is mandated by bop and max power is in the range of 670-700hp. Unlike GT500, fuel efficiency and in general fuel consume isn't a problem anymore since max stint is given by a max amount of allocated energy a stint measured through torquemeters placed on shaft/shafts... as consequence of this absolute value taken as reference, it doesn't matter how much fuel a car consumes as long it stays in that limit (infact toyota and glickenhaus have similiar stint length but toyota manages to do that with 20lt smaller fuel tank).
Actual GT500 cars should be in the range of 90kg/h, something more something less according to regulations or to success handicap system, years ago when they were close to 100kg/h they had power close or above 650hp... it's impossible to say current power output but I think that despite a decreased fuel flow rate, toyota and honda NRE engines are still in that range of power since they constantly upgraded their pre-chamber ignition technology across the years.

[joeb]

I can't find the source at the moment, but some in Nascar aren't happy that Hendrick gets to run this project as they think it amounts to additional testing. They were also mad they had to find out about this via press release.

[Adam43]

In getting to grips with the hybrid system I can see that. It will also be beneficial overall for the series for testing that, but just getting used to it could be a help to Hendrick.

The only possible solution is to open it up to a proper class and allow them all to run.

Too many Orecas and Ferraris? This is your solution. Too many stock cars.

[joeb]

Quite candid story about the displeasure of Toyota and Ford in NASCAR working privately with GM on the G56 entry.

https://www.motorsport.com/nascar-cu...olet/10306058/

[Adam43]

Ha, I bet it caused some, er, surprise. Nice that Toyota were actually at Sebring when it was announced. Did seem to come from nowhere for them.

I vaguely remember an interview on RLM not long after the announcement and being transparent and all learning from it came up.

There is only one possible solution though. Make it a class and have at least three cars, one of each.

[Mike E]

Originally Posted by Adam43

There is only one possible solution though. Make it a class and have at least three cars, one of each.

Obvious really

[Hawkwood]

Originally Posted by Mike E

Obvious really

Obvious and logical, so definitely won't happen

[AstonGeoff]

I think the selection committee has enough of a problem without adding 3 auto entries for NASCAR!

[Mike E]

Originally Posted by AstonGeoff

I think the selection committee has enough of a problem without adding 3 auto entries for NASCAR!

Set up a NASCAR pit between Indianapolis and Arnage. The crews can jump over the wall there for pit stops. Easy.

[canaglia]

or... being G56 an invisible class, just give a 5 hours turn to each of them...

chevrolet -> 16-21
ford -> 6-11
toyota -> 11-16


everyone gets same visibility + no moving chicane or rocket on straight during more risky and dangerous night hours.

[FIRE]

Let them do a 500 mile race at Le Mans, winning manufacturer gets the entry.

[skycafe]

During the RLM coverage of the race, Hindy interviewed Roy Carroll, who owns and sponsored the Riley entered GTEPro Ferrari 488, that ended up 5th in class. They spoke about the race, but also about the Hendrick Camaro entry for G56 next year. Carroll is good friends with Hendrick. Richard Childress is doing the engines for the Camaro entry, a friend of Hendricks and Carroll. Also, obviously interested in the money that will flow into this project, ss he owns a Nascar team.

Hendricks was at LeMans for the race.

Jimmy Johnson was mentioned in the RLM interview, but by Hindy in a sort of 'wouldn't it be great' comment, and Carroll agreed.

Carroll is a Ferrari collector-he doesn't know how many he has (!)-abd races Ferrari Challenge in US. Also, obviously, lots of funds.

https://greensboro.com/sports/greens...7675e609e.html

[joeb]

Originally Posted by skycafe

During the RLM coverage of the race, Hindy interviewed Roy Carroll, who owns and sponsored the Riley entered GTEPro Ferrari 488, that ended up 5th in class. They spoke about the race, but also about the Hendrick Camaro entry for G56 next year. Carroll is good friends with Hendrick. Richard Childress is doing the engines for the Camaro entry, a friend of Hendricks and Carroll. Also, obviously interested in the money that will flow into this project, ss he owns a Nascar team.

Hendricks was at LeMans for the race.

Jimmy Johnson was mentioned in the RLM interview, but by Hindy in a sort of 'wouldn't it be great' comment, and Carroll agreed.

Carroll is a Ferrari collector-he doesn't know how many he has (!)-abd races Ferrari Challenge in US. Also, obviously, lots of funds.

https://greensboro.com/sports/greens...7675e609e.html

Thanks for the info, I did hear part of that interview and was surprised how that entry came together. It is not very often we see a wealthy person sponsor a car and not drive in it themselves!

On the nascar front, i did hear that Jeff Gordon was also in attendance at Le Mans.