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2004 to 2008 F-150 and Mark-LT 4.2L, 4.6L and 5.4L equipped F-150s and Mark-LTs. |
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Thread Tools | Display Modes |
#1
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Had a gryphon 89 octane tune done was wondering what the timing advance was compared to stock...
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#2
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But, I'm pretty sure there's no simple answer to your question. I suspect the timing has been adjusted across the entire RPM/load envelope to safely optimize the way the powertrain performs in accordance with the customers needs/goals. Is that answer clear enough? ![]() - Jack
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2024 F150 Platinum SCrew 3.5L PowerBoost FX4, Peragon Tonneau Cover, LineX Bed, 35% Window Tint on All Sides and Rear, Full Nose Paint Protection Film, Husky Mud Guards, Lasfit Floor Liners, VIOFO Dash Cam |
#3
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I can tell you at least one degree. (.5 advancement for every 1 octane increase)
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#4
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Also note that this is for spark advancement, not the actual timing belt advancement.
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