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Volumetric Efficieny--how much "air" the engine really inhales vs. it's theoretical volume.
Brake Mean Effective Pressure--theoretical constant pressure that produces the power (lookup HP and P·L·A·N).
MEP = 150.8 × T / D
...where:
MEP = mean effective pressure, psi
T = torque, lb·ft
D = total piston displacement, cid
...note: mechanical efficiency = BMEP / IMEP ...there's a difference.
Last edited by gone-ot; 07-22-2011 at 11:19 AM..
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