W211 AMG Discuss the W211 AMG's such as the E55 and the E63

Octane and timing

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Old Feb 22, 2018 | 08:42 PM
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2005 e55 AMG
Octane and timing

Timing is power, we all know that. But as far as a baseline for these engines I am still learning. I normally run around 18-20* of timing and use a 50/50 mix of 100 and 93 octane. On 93 I used to run 16* timing.
Got a good deal on Torco 108 octane fuel and want to set up the tune for this. What can I use for timing numbers on the 108 and has anyone actually raced with higher octane. And by the way it is 10% ethanol as well.
IAT tops out at 115* at the end of the 1/2 mile while AFR gets a little richer, 11.2 11.0 with higher octane but that's OK.

Want to get the car dialed in for the next 1/2 mile event using the 108 fuel. Any input from real world experience .Thanks

Last edited by SICAMG; Feb 22, 2018 at 08:47 PM.
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Old Feb 23, 2018 | 12:22 AM
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E55 amg
Originally Posted by SICAMG
Timing is power, we all know that. But as far as a baseline for these engines I am still learning. I normally run around 18-20* of timing and use a 50/50 mix of 100 and 93 octane. On 93 I used to run 16* timing.
Got a good deal on Torco 108 octane fuel and want to set up the tune for this. What can I use for timing numbers on the 108 and has anyone actually raced with higher octane. And by the way it is 10% ethanol as well.
IAT tops out at 115* at the end of the 1/2 mile while AFR gets a little richer, 11.2 11.0 with higher octane but that's OK.

Want to get the car dialed in for the next 1/2 mile event using the 108 fuel. Any input from real world experience .Thanks
only way would be a custom dyno if you don’t want to blow your **** up
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