Design a six$-$liter, $8$ cyl engine that operates on a four$-$stroke cycle at $7000$ rpm $.$ Bore diameter $=$

$0\mathrm{.}1016$ m $,$ stroke $=\mathrm{.}0925m.$ Mechanical efficiency $=\mathrm{.}75$ and Volumetric efficiency $=\mathrm{.}85.$ find the

piston rod length, average piston speed, imep, brake torque, fuel used, AF and brake power, all

at design speed. All parameter values should be within typical, reasonable values and should be

consistent with the other values. State what assumptions you make $($e$.$g$.$ mechanical efficiency,

volumetric efficiency, etc$)$