Wössner forged high performance pistons Cooper S

model: Mini Cooper S K9123DA

bore size: 77mm/77,25mm/77,5mm

rod length: 131,5mm

pin dia.: 21mm

model:                        Mini Cooper S

engine:                       -

part no.:                     K9123DA

bore size:                   77mm/77,25mm/77,5mm

stroke:                        85.50mm

Wössner comp. ratio:  8.3:1

OE comp. ratio:           8.3:1

dome volume:            -1.3cm³

comp. height:             26.50mm

piston weight:             236g

rod length:                  131,5mm

pin dia.:                      21mm