What AFR Should I Target for E85? Why 10.5:1 Is Wrong
That magical 10.5:1 AFR everyone targets on E85 is costing you power and reliability. Real E85 varies dramatically in ethanol content, and your tune needs to adapt with it.
Is E85 Worth It for STI? Real Data on Power vs Complexity
E85 conversion on your STI isn't just about peak power gains. The real advantage is knock resistance that lets you run 2-3 degrees more timing advance, but only if you monitor ethanol content religiously.