what is the safest compression to run on DD on 93 octane tuned with hondata.

Im building an LS/VTEC and deciding on either JDM ITR OS Pistons (11.7:1 CR according to c-speedracing) or JDM B16 P30 OS Pistons (11.9:1 CR according to c-speedracing).

What would be better safer to run? I would like the CR of the P30 Pistons, but that might be too high when i build my head.

B18a Block with B17 head. Head is going to be stock for now. I also like the JDM ITR Pistons more because of the coating they have on the skirts and better oil flow they provide.

what do you think? 11.7:1 CR good enough for the street tuned on 93 octane gas with Hondata?

 

whatever the tuner in your area says he can tune for

 

You should be ok bro. Chris @ hookups tunes cars on shitty so cal 91 octane all day long on 11.5-12 compression. and gets great power out of them and reliable.