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Engine Size Calculator

Engine displacement table (CC's) - I've worked out most of the main ones used in air cooled VWs... I think...

 

Bore

77

83

85.5

86

87

87.5

88

90

90.5

92

93

94

96

100

Stroke

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

64

 

1192 1385                        

69

 

1285 1493 1585 1603 1641 1660 1679 1755 1775 1835 1875 1915 1998 2168

74

 

                1904 1968   2054    
76                               

78.4

  

                2017 2085   2176     

82

  

              2087 2110 2180   2276    

84

  

                2161 2234   2332    

86

  

                           

Formula for calculating Engine Displacement

BORE (mm) X BORE (mm) X STROKE (mm) X  0.0031416 = Engine Displacement in CC's

Example: 92 X 92 X 69 X .0031416 = 1835cc

To get the volume for one (1) cylinder in CC's, simply divide by four (4).

Example:  1835 4 = 458.69cc

Formula for calculating Deck Volume 

BORE (mm) X BORE (mm) X DECK HEIGHT (in.) X .01996 = Deck Volume

Example: 87 X 87 X .060" X .01996 = 9.06cc

Formula for calculating Compression Ratio

(Head cc + Deck cc + 1 Cylinder volume) (Head cc + Deck cc) =  Compression Ratio

Example:  (50cc + 9.06cc + 410.25cc) (50cc + 9.06cc) =   7.95 OR 7.95:1

            Or:  469.31 59.06 = 7.95 OR 7.95:1

 

Please note that this information is provided as a GUIDE ONLY we cannot be held responsible for any errors.