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Old 18 Jun 2010, 10:19 (Ref:2714231)   #65
MulsanneMike
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Originally Posted by gwyllion View Post
I don't understand all your confusion.

The ACO announced in 2008 that the LMP1 will get less power engines with smaller displacement and confirmed that decision in 2009. See http://www.endurance-info.com/article.php?sid=6771 for the engine details:
  • diesel: 3.7 liter, max 8 cilinders, twin turbo
  • petrol: 3.4 liter, max 8 cilinders, atmospheric
  • petrol: 2.0 liter, max 6 cilinders, single turbo
MulsanneMike recently pointed out that the latest draft of the rules he received drop the maximum number of cilinders restriction: http://www.mulsannescorner.com/2011ACOVersion4.jpg

According to Sam Collins the R18 "is to be fitted with a six cylinder twin turbo diesel engine, possibly mated to an energy recovery system." If this is true, obviously this will be clean sheet designed race diesel engine. It is just impossible to get 520+ bhp from a stock V6 TDI.

Others have suggested that Audi will a petrol engine. I argue that then a petrol turbo engine will the preferred option.

Yes, would appear to be the case. But then these aren't the official regulations, just the latest draft:

http://www.mulsannescorner.com/2011ACOVersion4.jpg
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