Bill would have to confirm this, but if you told him you were using 94 octane gas, he would have written the tune for that, and it would include an adjusted timing curve. If it's already set where it belongs, then trying to advance it more will probably not do much since the spark knock sensing system will probably pull timing to keep detonation from occurring.
However, when you were running the canned tune, you were actually using a tune set up for 91-93 octane gas and it would probably do better with a bit of timing advance.
- Jack
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Fri, October 9th, 2009, 10:54 AM
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