2025 iRacing 24 Hours of Daytona

[Skid_Marc_]

2025 iRacing 24 Hours of Daytona

Date: January 17-19

Timeslots:

• Friday 22:00 GMT
• Saturday 7:00 GMT
• Saturday 12:00 GMT
• Saturday 16:00 GMT

(Registration opens 1 hour prior to the event)

Session

• Warmup: 30 Minutes
• Qualifying: 8 Minutes / 2 Laps

Cars: BMW M Hybrid V8 paint files attached and Trading Paints Link.

• GTP - Acura ARX-06, BMW M Hybrid V8, Caddilac V-Series.R, Ferrari P299, Porsche 963
• LMP2 - Dalarra P217
• GTD - Audi R8 LMS EVO II, BMW M4, Ferrari 296, Lamborghini Huracán Evo, Mercedes-AMG 2020, Porsche 911 GT3 R (992) *Maybe more*

**Please read!**

Information regarding drive Time and Team Registration

>> SCHEDULE <<

The above schedule has an "Availability" tab!

• Please color code the hours in which you are available to drive during the race!
• Please add the number of consecutive stints you are willing to drive (1, 2, or 3) in the bottom row of the chart!
• Please add the your prefered race time slot at the bottom row of the chart!
• Names have been added based on reactions in this thread and in Discord. If your name isn't listed, please just use an empty column add yourself to the list.

Please note that just adding your name in this thread does NOT guarantee a seat in the actual race. You MUST show up to group practice sessions before the event! The final teams will only be made up of drivers that practice and actively participate in this thread! The sooner we can confirm everyone who is racing, the sooner we can finish the schedule and finalize paints!

 

[Skid_Marc_]

I'll get time to clean this up later, but we're inside 4 weeks of the 24 Hours of Daytona, and with the holidays going on, I don't want to procrastinate too much.

I'd love to run a GTP car (despite the fact that they're a broken disaster right now), but otherwise I'll run the LMP2.

Personally, I'm not interested in running a GTD car at Daytona, and risk being in a GT3 only split. Anywhere else, but not Daytona and Le Mans.

 

[Skid_Marc_]

Also, the iRacing CONSPIT Endurance will be there the weekend of January 10th, so, for anyone interested, it will be a 6-Hour shakedown race.

 

[Noodleguitar]

GTP-only split it is then

 

[ByteAlex]

Hey sup! I'd also be interested in running the GTP class car (preferably the Porsche)

 

[Deb]

If we're leaning toward the Porsche GTP, I'll start practicing that because I have not driven the GTPs. What about it is broken?

 

[Skid_Marc_]

Just.. so much... I think we'd have enough drivers to run an LMP2 and GTP if people don't want to get/learn another car.

 

[Skid_Marc_]

@Deb iRacing has never properly moddled the Hybrid system in any of the cars (F1, LMP1, or GTP), the aero has never been great, and the tyres were shit when they released them last year.

Now the aero and tyres are broken in the complete opposite direction, with lap times around Spa in the wet ecliplsing real-life Super-Pole times by seconds, and apex speeds of 50-70kmh more than is possible IRL.

 

[Nejtun]

I would prefer LMP2, I only own the BMW GTP but I will get the Porsche if that ends up being the car of choice for the numbers we get.

 

[ByteAlex]

I don't mind driving either GTP, I'm just generally keen to try this class.

 

[Noodleguitar]

I don't mind driving any class for Daytona. I haven't driven (nor owned) a GTP before so I am somewhat curious though.

Running two teams might be a bit optimistic though.

 

[Noodleguitar]

Shall we go with the BMW GTP then? I'll buy it and do some laps on Sunday or somewhere next week to try it out.

 

[ByteAlex]

I'd personally prefer the Porsche GTP, but if the group decides for the BMW I'm also fine with that.

 

[Skid_Marc_]

BMW MGU-K Deploy mode, per iRacing's Tool Tip:

"There are two MGU-K deployment modes; race and qualifying. Race custs deploy at a % of projected speed at end of next straight in order to maintain target battery charge level. Qual holds the power in Overtake mode."

The two MGU-K deployment modes; "No Deploy", "Qual", "Attack", "Balanced" and "Build".

iRacing's tool-tips remain undefeated, completely unmatched in detail.

It seems if you put the car in "Qual" then you can't get it back out. Not sure what's happening there, but I would avoid doing that in the race. Only way I could get the car out of Qual mode was to exit the car and change it in the garage screen.

 

[Nejtun]

The BMW feels a lot more drivable than it did when it released and for me it was a lot faster than my times in the LMP2 where as a year or so ago I would run myself over with the LMP2 vs the GTP.
So far with the default iracing setups, I was doing:

1:32-33 in the GTP at 18 degrees C track, and 1:34-5 at 27 Degrees
1:37-38 in the LMP2 at 18 Degrees C and 1:39-1:40 at 27 Degrees
The tyres didn't seem to suffer in the GTP over an entire stint (70% lowest)

I would need to check again to confirm but I believe the in car settings for the GTP allow you to change MGU-K mode twice per lap, which would be fine if you could set each one to a button but you have to cycle through a mode you don't need to get to one you do. So, if you turn your rotary the wrong way then you are in trouble for a lap.

Balanced setting from start of stint to finish seemed to work out fine for me with the opening laps getting faster and faster until the engine worked out how much it could deploy without letting the battery drop far below 50% charge.
I am sure we can all figure it out during practice in the coming weeks!

 

[Noodleguitar]

I'd personally prefer the Porsche GTP, but if the group decides for the BMW I'm also fine with that.

I didn't mind any GTP car, but I've bought the BMW since Nejtun owned it and you mentioned you didn't mind driving either car earlier.

 

[Noodleguitar]

I'll be hosting a 2-hour private Daytona (day) session today at 18:00 GMT to do some GTP testing, in case anyone is around.

 

[Noodleguitar]

The battery mode didn't have as much effect on the speed as I initially thought. I left it at balanced for most of practice and the charge was kept nicely between 40-50%.

After that I tried attack mode, which definitely depletes the battery, but not at a very high rate. I believe it was roughly in the area of 20% charge over about 6 laps. Even qualifying mode doesn't make it go 100% to 0% in a single lap, unfortunately.

What the difference is between "No deploy" and "Build", I haven't figured out yet. As far as I could tell, both have a target percentage of 100 and do not use the battery at all.

TL;DR, keeping it at balanced is probably the way to go, unless you know you can get past someone with a minor boost. It might also be funny to give the car to the next driver with 0% charge left

 

[ByteAlex]

So who is gonna make the final call on which car it'll be so I can buy and try around?

Am I correct that currently 5 people have signed up for this?
Skid_Marc, Noddleguitar, Deb, Nejtun and me?

 

[Skid_Marc_]

Noodle, Deb and Bill have already bought the BMW, so I'm not gonna make them switch now. My friend Bill also wants to drive, so that's 6 drivers.