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Porsche, BMW elevate considerations about excessive voltage points forward of Daytona 24
SportsCars

Porsche, BMW elevate considerations about excessive voltage points forward of Daytona 24

By Miles Cooper January 25, 2025
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Porsche and BMW have voiced considerations over the reliability of the high-voltage component of the one-make LMDh hybrid system going into this weekend’s Daytona 24 Hours. 

Their apprehension follows a spate of points which have stricken LMDh equipment and compelled components to be modified over the course of the pre-event Roar take a look at final weekend and the opening two days of the IMSA SportsCar Championship curtain-raiser at Daytona this week. 

BMW M Motorsport boss Andreas Roos described the issues, which prevented the #25 Rahal M Hybrid V8 for setting a qualifying time on Thursday, as “a little bit of concern”.

“Clearly it is not what you need to have in qualifying that the automotive stops on observe,” he mentioned.

“On the finish you at all times really feel higher when there is not any concern in any respect occurring in observe and testing.”

Porsche 963 programme boss Urs Kuratle mentioned: “I hope it is not a pandemic. 

“I do not know the whole variety of modified batteries however it’s positively too many, that is for positive.

“From the reliability perspective, it seems like we did a step backwards in comparison with final yr.”

Porsche, BMW elevate considerations about excessive voltage points forward of Daytona 24

#25 BMW M Staff RLL BMW M Hybrid V8: Marco Wittmann, Sheldon Van Der Linde, Robin Frijns, Rene Rast

Picture by: Andreas Beil

Porsche Penske Motorsport managing director Jonathan Diuguid added that the problems meant that the German producer’s manufacturing unit group is “not sitting right here with a pleasant fuzzy feeling concerning the race”.

Porsche revealed that on Friday afternoon it had met with representatives from the opposite LMDh producers, IMSA, and Bosch Motorsport and Fortescue Zero (previously WAE Applied sciences), which respectively produce the motor generator unit [MGU] and the high-voltage battery elements of the spec hybrid system. 

Kuratle defined that there’s “an enormous push right here on the observe and the house bases [of Bosch and Fortescue] again in Europe” to attempt to overcome the issues. 

Diuguid added: “We’re doing every part on our aspect to verify we perceive the issue and what we are able to management, attempting to work with the suppliers to get their enter and suggestions on what could be inflicting the problem, attempting to tick as many bins as we are able to.”

The producers haven’t revealed what number of occurrences of the HV concern there have been to date, however Diuguid acknowledged that in Porsche’s case it was “multiple”. 

The primary seems to have been within the second session of the Roar final Friday when the #7 Porsche 963 LMDh stopped on observe with Felipe Nasr on the wheel. 

The shopper 963s run by JDC-Miller MotorSports and Proton Competitors are additionally understood to have run into HV points through the Roar. 

BMW is thought to have skilled HV points on each its Rahal-run automobiles, although it’s unclear whether or not Acura, Cadillac and Lamborghini have been stricken. 

Diuguid revealed that the problems had been “not at all times the identical drawback”. 

“It hasn’t been tracked again to a sure batch, a sure manufacturing run or a sure set of situations,” he mentioned

Kuratle confused that the finger of blame shouldn’t be pointed on the battery. 

“It’s tough to outline the battery, the place does it begin and the place does it end? It’s an HV concern,” he defined.

It’s unclear why the hybrid points have arisen at this level as a result of the elements proved dependable of their second season of the GTP period in 2024. 

Diuguid defined there have been no updates for the brand new season, however admitted that “there are small variances which might be regular”.

“There are some new items, a [different] manufacturing batch,” he mentioned. 

IMSA has been contacted for a remark.

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