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Old 08-30-2021, 04:50 PM   #4
radz28
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Safe EQ for DI FI is something like .80-.85 or so. If you're using 14.108 as stoich, that's a range of about 11.286 to about 12.0 I believe. Lean is meaner, is what's said, but you could probably go as high as you are if your are running 93-plus octane booster, which I thought I remembered you saying. I imagine fuel where you are is probably okay to do that. I couldn't do that here, with the 91-swill we have. I think I've seen about .83-.84 on 91-plus octane booster (blended to about 93-94 octane).

You can't run too rich, otherwise you'll get knock with DI. DI is more efficient than port, so you can run leaner.
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