Engine Design Equations Formulas Calculator Compression Ratio

Engine Design Calculator
Automobile - Car

Solving For Engine Compression Ratio

Inputs:

BORE
STROKE
compression chamber volume (CCV)
head gasket volume (HGV)
piston deck volume (PDV)

Solution:

compression ratio (CR)

HAS NOT BEEN CALCULATED

Other Units:

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Select to solve for a different unknown

	volumetric efficiency
	cubic inch displacement
	cubic inch displacement
	air flow rate
	head gasket volume
	piston deck volume
	compression ratio
	fuel system injector size per horsepower

Where

VE	=	volumetric efficiency
CFM	=	engine air flow rate - cubic feet per minute
CID	=	engine displacement, size or volume - cubic inches
RPM	=	engine speed - revolutions per minute
NOC	=	number of cylinders
BORE	=	length
STROKE	=	length
HGV	=	head gasket volume
HGCT	=	head gasket compressed thickness
PDV	=	piston deck volume
DPD	=	deck to piston distance
VPD	=	volume of piston depressions
VPB	=	volume of piston bumps
SV	=	swept volume
CR	=	compression ratio
CCV	=	combustion chamber volume
ISH	=	injector size per horsepower
HP	=	horsepower

References - Books:

See 3 on reference page