LMDh (DPi regulations version 2.0) - Page 16

**joeb** · 31 Aug 2022, 13:27 (Ref:4124383)

Some video of the Acura testing at Road Atlanta recently.

https://twitter.com/HondaRacing_HPD/...81861888061440

hondafan37 · 3 Sep 2022, 17:19 (Ref:4124694)

Acura and Porsche are testing at Daytona

https://www.instagram.com/stories/le...4929165/?hl=es
https://www.instagram.com/stories/le...1929615/?hl=es

V8 Fireworks · 3 Sep 2022, 18:25 (Ref:4124699)

Quote:

Originally Posted by hondafan37

https://racer.com/2022/08/29/hondas-...indycar-roots/

Quote:

"We have pushed the limit of the rules,” Salters said. “We’re trying to make the most compact, most efficient [engine], and we have to match this to the electrified part. So we did lots of thinking about what we needed this is a pinnacle-level sports car, basically an LMP1 car underneath to be to be really honest with you.

“So we started to think what do we need? So you have to package this to give you the best racing and so we thought about that, and for us, a small-displacement, high-revving V6 engine is best option."

Interesting decision. It is at odds with the choice of Porsche and Cadillac to run large displacement V8s.

**Adam43** · 3 Sep 2022, 18:26 (Ref:4124700)

Worse than that, it’s at odds with your username

chernaudi · 3 Oct 2022, 16:30 (Ref:4128555)

I wonder how LMH and LMDH cars will be balanced going forward in IMSA and the WEC. This is given that reportedly (based on times from the Road Atlanta test today) that the LMDH/GTP cars are barely slower than the DPI cars. At Sebring, the LMH cars in the WEC event were a fair bit slower than the DPIs.

JT240Z · 3 Oct 2022, 17:30 (Ref:4128560)

Found this today. You folks may have already seen this, but it was good to read for me. Easier to understand the difference between LMH and LMDH.

https://a-e.li/reports/le-mans-hypercar-lmdh/

**FIRE** · 3 Oct 2022, 17:39 (Ref:4128564)

Quote:

Originally Posted by JT240Z

Found this today. You folks may have already seen this, but it was good to read for me. Easier to understand the difference between LMH and LMDH.

https://a-e.li/reports/le-mans-hypercar-lmdh/

The Phoenix Racing LMDh rumour is new to me.

**joeb** · 3 Oct 2022, 19:31 (Ref:4128581)

Testing pics from today via S365:

https://sportscar365.com/photography...anta-gtp-test/

Both Acura cars are there with one each from Caddy and BMW

BWM really wants to keep the car clean since they are low on spares after a testing crash in "mixed" conditions at the Glen.

https://sportscar365.com/imsa/iwsc/b...ns-glen-crash/

Racing Harz · 3 Oct 2022, 20:20 (Ref:4128588)

Quote:

Originally Posted by FIRE

The Phoenix Racing LMDh rumour is new to me.

They wanted to do LMDh - that´s the reason for their prototype-programm 2021.

**joeb** · 4 Oct 2022, 12:10 (Ref:4128650)

A couple of side by side pics with the outgoing and incoming Acura models

https://www.instagram.com/p/CjLMxbAN...d=YmMyMTA2M2Y=

broadrun96 · 4 Oct 2022, 12:24 (Ref:4128651)

For those who have Zuk's "invention" if you follow Road Atlanta there are a decent number of trackside videos for the 3 cars running this week.
Caddy is slightly different in note, Acura seems a bit louder, don't remember the BMW

**joeb** · 4 Oct 2022, 19:54 (Ref:4128684)

Testing update from Racer:

https://racer.com/2022/10/04/imsa-ge...the-lmdh-cars/

Seems the Shank car had an issue which led to a crash, but other than that, pretty good running.

Enduranceracer · 4 Oct 2022, 22:27 (Ref:4128692)

A recap from Day 1 and info about MSR Crash

https://www.youtube.com/watch?v=EYFJWVyMjjY

Coach Ep · 4 Oct 2022, 23:32 (Ref:4128695)

Quote:

Originally Posted by joeb

Testing update from Racer:

https://racer.com/2022/10/04/imsa-ge...the-lmdh-cars/

Seems the Shank car had an issue which led to a crash, but other than that, pretty good running.

Considering how much of a hot spot turn 1 was during the Petit, I betcha it was where the crash happened!

**joeb** · 5 Oct 2022, 13:26 (Ref:4128759)

Quote:

Originally Posted by Coach Ep

Considering how much of a hot spot turn 1 was during the Petit, I betcha it was where the crash happened!

I thought maybe a GT car snuck on track so the protos had to hit it

**joeb** · 5 Oct 2022, 14:16 (Ref:4128769)

Quote:

Originally Posted by Enduranceracer

A recap from Day 1 and info about MSR Crash

https://www.youtube.com/watch?v=EYFJWVyMjjY

Thanks for posting this, lots of good on track action.

Enduranceracer · 5 Oct 2022, 22:27 (Ref:4128828)

Anoher crash or the MS #60 ends Acura's test early

https://racer.com/2022/10/05/acura-e...y-after-crash/

Simmi · 5 Oct 2022, 22:40 (Ref:4128829)

Second shunt in three days for MSR. This time McMurry at the wheel. Both Acuras packed up slightly early as a result.

https://racer.com/2022/10/05/acura-e...y-after-crash/

Enduranceracer · 6 Oct 2022, 00:50 (Ref:4128835)

Video and pure sound from Road Atlanta Test.

https://www.youtube.com/watch?v=NDu-uPm1R5c

Coach Ep · 6 Oct 2022, 01:09 (Ref:4128837)

Quote:

Originally Posted by joeb

I thought maybe a GT car snuck on track so the protos had to hit it

T5 on Monday, T7 on Wednesday. And a Beamer at Watkins Glen recently. Kinda Messy all in all.

On a sidenote, I wish IMSA would revive the early spring Rd. Atl. sprint race.

Mike E · 6 Oct 2022, 17:44 (Ref:4128917)

https://youtu.be/NDu-uPm1R5c

https://youtu.be/wSutk4E-BQ8

https://youtu.be/kVuD9BYQ8es

https://youtu.be/LR6zLxB2__Y

**joeb** · 17 Oct 2022, 16:42 (Ref:4130621)

Details on how the hybrid system is going to be deployed are still not finalized from the series, but a small update from GM testing:

https://sportscar365.com/imsa/iwsc/k...ill-in-motion/

JT240Z · 17 Oct 2022, 17:03 (Ref:4130622)

This is definitely going to be an interesting year. So many technical challenges and so many unknowns. The more you follow the hybrid part, the more intriguing it becomes. With all of the hybrid components being the same for all manufacturers, any weak link could become a huge issue across the board. Reliability is one unknown that Daytona will tell for sure. Even a 24-hour "test run" cannot duplicate the possibilities that can occur during a real endurance race.

Will be interesting to see if they will require all LMDh cars to run under electric power in the pits. With that requirement, a hybrid component failure could sideline a team.

broadrun96 · 17 Oct 2022, 17:52 (Ref:4130628)

Don’t think it’s a stand alone hybrid system, think the engine needs to be running as well. It’s a different system than the old LMP1 electric launch but MUCH cheaper

JT240Z · 17 Oct 2022, 19:02 (Ref:4130632)

Quote:

Originally Posted by broadrun96

Don’t think it’s a stand alone hybrid system, think the engine needs to be running as well. It’s a different system than the old LMP1 electric launch but MUCH cheaper

Not sure but this is what was reported by Sportscar365:

Quote:

Sportscar365 understands that a decision on whether cars will be required to run on full electric mode while in pit lane was yet to be decided as of last month, with other key points still awaiting final confirmation from the sanctioning bodies.

From that, I would conclude that they can indeed run full electric mode.

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