Mahle rates their pistons for being a straight h22, with the stroke of the h23 crank however that compression ratio should change... So i am wondering what would this combination equal to.. Basically h23 block h23 crank h23 rods with mahle h22 pistons rated at 11.5 compression with an h22 head. Any help would be greatly appreciated!!
87.00 90.00mm 143mm 22mm 31mm 10cc 342g 11.5 H22220425D10

 

its going to be close to 13:1 compression

in a standard h22 those pistons are closer to 12:1 than 11.5:1

 

What about Using there 10.0 CR Mahle Gold Pistons with H23 Rotating Assembly? What CR Then?

 

the 10:1 pistons are right... 10:1 with an h22 crank, 10.6ish with a 95mm crank