Hello
I am new here and i want help from people here.

I have Ford escort RS 2000 mk5
I want do some modifications like installing turbo.

My first question is how can I calculate Gasket Volume( how calculate size of cylinder head cover gasket ) for compression pressure : 10,3:1 (this is without turbo) and 8,5:1 (this with turbo) .

Thank you for answer.