Standard Z22SE piston weight

positive

Couldn't find anywhere the weight of the z22se standard piston, so measured one. 🙂
It was used before hence there was some oil and carbon buildup on it . Original weights probably 1-2g less.

Piston: 293g
Gudgeon pin: 100g
Circlip: 1g (each)
Top compression ring: 7g
Second compression ring: 9g
Oil ring (3 parts): 6g
Conrod with its 2 screws: 565g

vocky

thats handy to know, just had some yh rods balanced and they differed up to 2.5g between the four :eek:

positive

To be honest, I'm quite impressed with these numbers. I was thinking about to move to Wiseco pistons, but knowing how little the difference is, it is pointless now.