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123 ignition for 2.25

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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 :)

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Look at the difference in advance between 85 and 90, then add that to the figures for 90 should get you in the ballpark 

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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.

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Thanks so much for the answers :):):)

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