I have about 350-400 miles on my B20VTEC now. I've been driving it around getting it broken in according to monotuneusa.com and it has been going really well. I decided to do a compression check tonight. I'm using Arias 10.8:1 pistons with flat top valves and the head milled .004 and block decked .003 for a compression ratio of around 11.3-5:1. These are my numbers

245-250-245-250

What do you think?

 

thats about right..

 

Forgot to add, the car sat for about a half hour before doing this.

 

Anyone else?