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Wossner Pistons

Wossner Miata / MX-5 1.8 16v High Comp Forged Piston Kit (K9078)

Miata / MX-5 1.8 16v High Comp Forged Piston Kit.

Manufacturer kit reference: K9078

Technical specifications

Engine Code BP / NB
YOM From 1994
YOM To 2005
Bore Size 83.5mm , 83mm , 84.5mm , 84mm , 85mm
Stroke 85mm
Compression Height 31.2mm
OEM Comp Ratio 09:01
Number of Rings 3
OEM Rod Length 133mm
Clip Part Number CW20
Pin Size 20mm
Pin Part Number WP052
Cylinders 4
Valves Per Cylinder 4

Piston specifications by size

Piston reference Piston diameter Compression ratio Capacity
K9078DA 82.94mm 12:1
K9078D200 84.94mm 12:1 1928cc
K9078D050 83.44mm 12:1 1861cc
K9078D100 83.94mm 12:1 1883cc
K9078D150 84.44mm 12:1 1906cc

Piston diameter and cylinder bore are different measurements. Select the correct size and confirm the engine specification before ordering.

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