Hi to all
Just wanted to present to the community My
Predefined Compression Ratio Calculator

feel free to discuss, suggest and bug report

also I will be grateful if somebody post full spec sizes of 4b11 block/internals/head

 

Viii's and IX's have different headgaskets. The VIII has a 3 layer and the IX is 5 layer.

 

20gmr
VIII using both 3 and 5 layer gaskets
and homologation docs for viii says that 1.18mm gasket used

i have one MN158470 gasket, it`s from e8 and it`s 5 layer 1.18mm

 

MN158470 ... my mistu dealer doesn't have that part number ... they say it does exist...

 

may be only for FQ evo..

 

I have ordered it from japan
my JDM caps says:
MD346741 2000.12.1 - 2002.11.3 ALL <
MN155760 2002.12.1 - 2003.12.3 ALL <
MN158470 2004.01.1 - 2004.12.2 6FM/T SJGFZ < EVOLUTION-8/8-MR/9/9-MR(GSR),6

I`ll be glad if someone share exact size for other evo gaskets in form "part number x bore x thickness"
also interested in stock sizes of 1, 2, 4, 6, 6.5, 10 EVO pistons