T_init	400		Initial temperature at BDC  
p_init	1.5e5		Initial pressure at BDC     
La		0.08		Crank arm length            
Lc		0.2693	Connecting rod length       
S	      0.16		Stroke                      
D	      0.13		Bore diameter               
CR		15		Compression ratio           
N	      1500		Engine rpm                  
ER		0.5		Equivalence ratio