Did a search and cant find much bout my question. What you be the compression or about the compression for JDM ITR pistons and USDM ITR pistons on a stock gsr head with skunk2 intake mainfold? Also what kind of RPM ranges do people see normally on a well qualitry build ls vtec with rods, rod bolts, new bearings, and high compression pistons?

 

LS Block with USDM ITR pistons and GS-R head should be in the 10.9:1 range, and the JDM pistons would be in the 11.3:1 range...


Jason