Quote:
Originally Posted by ps2fixer
What's your source for the increase in fuel use?
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Engines normally retard timing to prevent spark knock, that's how it's done on Toyota's at least.
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Decades of experience has taught me these things. Typically, a boosted engine cuts spark timing under boost AND runs rich, to prevent knock. Because if you push your luck, you'll be replacing broken piston rings and/or fragged pistons.