can you guys who are running close to 20psi tell me that max timing you see? I am still working with canned tunes and would like to run 21 or 21.5* timing on 93 octane but is this safe, common amongst you who run that much boost? Thanks

 

I was at about 20* at 20.5psi and had Eurocharged add a degree of toiming but want to be safe, anyone??

 

I have seen 19.6 psi boost, I only see 18.5 timing advance, don't know if that helps u, I'm running canned tune as well from EC
We get 94 octane up here Toronto Canada

 

I'd say you were plenty safe as my 20.5psi with 21* is more on the edge, Mark