PhilS Posted March 19, 2020 Report Share Posted March 19, 2020 Hi all, If ive done a good tune on 100 percent petrol 99 ron and add 10% meth to the tank, what's the approximate ball park figure I'd need to add to the fuel table.?i was going to try 5 percent everywhere and then adjust through trial and error. Car also runs methanol injection, would there be much difference if ran straight pump fuel 99 ron? Quote Link to comment Share on other sites More sharing options...
Adamw Posted March 20, 2020 Report Share Posted March 20, 2020 90% petrol with a stoich of ~14.7 + 10% meth with a stoich of 6.5 gives you a combined stoich of about 13.9:1. If you are tuned in modelled mode you can just change the stoichiometric ratio setting and it should take care of the change in fuel. If you are tuned in traditional mode then multiply the fuel table by 1.06 (6%) should get you in the ballpark. Quote Link to comment Share on other sites More sharing options...
PhilS Posted March 24, 2020 Author Report Share Posted March 24, 2020 Hi Adam , fantastic thanks for your help. Im using traditional method so applied the percentage across the entire range. Regards Quote Link to comment Share on other sites More sharing options...
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