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Originally Posted by SALEEN S7R
What are the actual engine regulations for diesel cars in LMP 1 and LMP 2? I know that for a petrol LMP 1 car the engine regulations are either a 4.0ltr twin turbo or 6.0ltr n/a and for LMP 2 petrol its either a 2.0ltr single turbo or a 3.4 n/a but what are the regulations for diesel powered cars?
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Just read article 5.1 and appendix A.4 of
http://www.lemans.org/sport/sport/re..._ACO_fr_gb.pdf
Diesel is (currently) only allowed for LMP1 and the displacement limit is 5.5 liter is. Like supercharged petrol engines the restrictor size is fixed and the boost is regulated (depending on displacement).