You would be about 96 octane at that combo. Stock tune won't add any additional timing beyond 93 octane but would assist any knock you may be having. It's like being tuned for 93 but adding boostane. Helps knock but if not tuned for it your not getting extra power. Now if you got tuned for it they could ramp up timing and you'd definitely get more power.I added 3 gallon of ms 109 to 11 gallons of 93 Shell, after a mile or so it seemed to become more responsive and wanting to review easily, anybody try this on there untuned GT?
Lol. You would be better off (and much cheaper and cat safe) just putting 3-4 gallons of E85 in for the octane boost and cooling effects. ;).With 12.0 compression anything better than 91,93 octane pending the computer ability to spread the timing is a + especially down low in the rpms.
The factory stock tune adds timing up to 96 octane according to Ford, I`m going to try 96 when the track opens back up.I added 3 gallon of ms 109 to 11 gallons of 93 Shell, after a mile or so it seemed to become more responsive and wanting to review easily, anybody try this on there untuned GT?
If it is leaded fuel it'll mess with your o2 sensors...Sorry to piggyback off another thread - I'm going to the track tomorrow and they only offer 116 (and up) race gas. Will it hurt anything to put some of that in my car if I start to run low on fuel? Bone stock 2018 GT.
It does appear to be leaded, so I'll just run with a little more fuel than I planned. Thanks for preventing issues!If it is leaded fuel it'll mess with your o2 sensors...
WHere did you read that? Ford's timing limiting strategy and the limit on that is 91 octane. Any higher octane & you won't gain not even 1 horsepower on a stock tune.The factory stock tune adds timing up to 96 octane according to Ford, I`m going to try 96 when the track opens back up.