Asked by Motors TV about that first stint when he was pushed so hard by Pirro, Bourdais told:
"We have two modes with the engine mapping, one to help overtaking, and the other for being sure we reach the checkered flag. On the second mode it is not possible to keep the Lola behind."
The way that first stint unfolded, it seems drivers weren't allowed to use that "engine boost" indeed. Maybe they weren't for the whole race. I think they were going as fast as they could
(especially the penultiem stint), but the car never left the safe zone mode.
The team repeated several times that new restrictor rules hurt them more with the big V12 than smaller engines
(like Audi's V10, but more specifically they seems to think the best diesel engine layout for the new rules would be a V8). Reduced restrictors an reduced turbo compression made them lose about 40HP if we believe them
(which we aren't, obviously, so let's guess they claimed back 15 to 20HP by tweaking and pushing engine development, making for an overall 20HP loss), and aero rules made them lose straight line top speed, but that factor is the same for everyone, so that is cancelled out. Sort of.
I don't think that 20HP loss should make them worry about their competition pace-wise, given the margin they had before. So my bet is that they really lost some pace, but volontary. Because they weren't going to use the V12 potential in terms of power with those rules, they tweaked it mostly toward fuel economy.
I'm still a bit mad at Audi not racing
(at least with one lab-car, as Peugeot did in 2008), especially because that missed race test
(the best test for a LM car before june) may hurt them later.
But Rockenfeller crashed the R15+ tub on turn 17 straight on the first test last monday (
), and seing the team apparently had no spares, it underlines that they really weren't ready.
Still, had they chosen to race it last saturday, they would be in a better position now even if they still crashed it, bacause they would have had two days to fly spares to the US and keep testing again.
Monday before the crash:
pic of the crashed R15
here