Last Updated: Feb 17, 2009
B-Series Compression Calculator v.950 BETA
  


This calculator is intended for use as a general estimate of your compression only.   Not all values are verified.

Honda Calculators : B-Series | D-Series | K-Series | H/F-Series | Horsepower | Transmission

Basic Compression Calculator | Advanced Compression Calculator | OBD-0 & OBD-I Check Engine Light Codes
Block Crank  
B16A - B17A B20B/Z
B18A/B Other
B18C - B16B
B16A/B B18A/B - B20B/Z
B17A Other
B18C
Bore (mm)
Stroke (mm)
Deck Height (mm)
Head
B16A/B - B17A - B18C5 B18A/B - B20B/Z
B18C1 Other
Combustion Chamber Volume (cc)
Piston
PR3 (USDM B16A) P30 (JDM B16A) P61 (B17A)
PR4 (B18A/B) P72-A0 (USDM B18C1) P72-00 (JDM B18C1)
P73-A0 (USDM B18C5) P73-00 (JDM B18C5) P3F (B20B)
PHK (B20Z) PCT (JDM B16B) Other
Dome (cc)
Comp Height (mm)
Connecting Rod
B16A B17A B18A/B - B20B/Z
B18C1/C5 B16B Other
Rod Length (mm)
Headgasket Thickness
OEM 3-layer 1-layer
2-layer Other
Thickness (in)
Bore diff (mm) *
Head Milling and Block Decking
Enter total amount head has been milled and block decked.
(in)
Maximum Operating RPM
Enter max operating RPM to determine mean piston speed and max piston acceleration.
(rpm)
Elevation
Enter operating elevation of engine to determine effective compression ratio.
(feet)
Boost
Enter boost pressure to determine effective compression ratio. (set to 0 for NA setups)
(psi)
Static Comp Ratio
: 1
Effective Comp Ratio
: 1
Displacement
cc
Calculate
Rod / Stroke Ratio
: 1
Piston-to-Deck Height
in
Mean Piston Speed
fps
Max Piston Acceleration
fps2
* for slightly better results, enter the difference between the bore diameter of the headgasket and the cylinder bore.
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