Piston and rod size of the D14A3/A4/Z1/Z2

[saxophonias]

wow. So this means more compression for d14z?

[Law_]

Guess it is the contrary not?

[NIO]

wow. So this means more compression for d14z?

Yes, It is a little more compression but is more than d14a4.

Guess it is the contrary not?

No, it isn't contrary. It is almost flat. I regret that I didn't took pictures of the two pistons, but I was in a hurry for building the engine for the race season.

[Law_]

Great. maybe the slightly different compression would be better noticed on a mini me setup !

[saxophonias]

maybe this is how they are explained the small differentiations in c/r from 9.0 9.1 and 9.2 we have seen in honda manuals

[mynameisowen]

Man thats very cool news, I wonder how different it is. I would like to use a Y8 head and these Z2 pistons on my mini-me to bump up compression even further.

[Law_]

Man thats very cool news, I wonder how different it is. I would like to use a Y8 head and these Z2 pistons on my mini-me to bump up compression even further.

and remove a layer from the head gasket =)
and maybe remove some material from the head why not

[mynameisowen]

Man thats very cool news, I wonder how different it is. I would like to use a Y8 head and these Z2 pistons on my mini-me to bump up compression even further.

and remove a layer from the head gasket =)
and maybe remove some material from the head why not

indeed

[marty40]

1.3mm skimmed of my head

[Law_]

1.3mm skimmed of my head

How much should that raise compression? Compared to removing a layer from head gasket, is it different? How much space left between the valves and piston?Cheers