Guys... I read all the archives and found nothing specific about this ... If I put .25 oversized, Civic Type R pistons on my USDM ITR engine, how much of an increase in compression ratio should I expect ?? Also, does anyone know how much my engine would be displacing with these pistons ?? I'd like to be running at least 12.x:1 CR and something close to a 1.9-2.0L displacement. What would I need to reach these goals (other than the larger pistons) ?? Thanks !!

 

The CTR pistons will get you just above 12:1
but to get the 1.9-2L displacement you have to resleeve your block and get
84+mm pistons