I was wondering how much ignition advance people are running with their boosted S2000s and how you chose to decrease ignition advance assuming you did. When I used to do old d series engines I used to go for between 0.5 and 0.7 degrees per psi of boost and never had a problem.

 

I would love to help out but AJ (s2konroids) did mine so best to drop him a PM

 

I have no doubt he will be along shortly

 

Monitor knock or knock counts, for a basemap -1 per 1psi of boost is a safe'ish figure but not optimal purely depends on car and setup.