Red110 Posted January 13, 2019 Share Posted January 13, 2019 Hello all, a friend of mine wants to fit a 123 ignition in his 11H engine. Anyone can tell me which is the right setting for 95 petrol? In the 123 ignition workshop manual he only finds data for tuning with 85 and 90 petrol. Thank you :) Quote Link to comment Share on other sites More sharing options...
lo-fi Posted January 14, 2019 Share Posted January 14, 2019 Look at the difference in advance between 85 and 90, then add that to the figures for 90 should get you in the ballpark Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted January 14, 2019 Share Posted January 14, 2019 Be a bit careful, the octane figures may be referring to US PON rather then the EU RON figures, it is described here: https://www.etuners.gr/fuel/ Basically you can add 5 or 6 to a US octane rating to get an EU RON figure. So... your figures for 90 may well be perfect for 95 octane over here. Quote Link to comment Share on other sites More sharing options...
Red110 Posted January 19, 2019 Author Share Posted January 19, 2019 Thanks so much for the answers :):):) Quote Link to comment Share on other sites More sharing options...
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