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2016 Q50 Red Sport AWD. Fully loaded. Stock (for now..)
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Discussion Starter #1
Greetings.

On the GM DI (Direct Injection) side, we tune for .85 Lambda (~12.5 AFR based on 93 octane with 0% Ethanol/14.7 stoich) WOT on boosted applications (1.176 EQ Ratio). Does the VR30DDTT like the same AFR/Lambda? If so, the factory tune is SUPER RICH. I've been lurking on the JB4 forum and Burger targets 12.5 with their fuel wires (I will be glad when EVERYONE speaks Lambda...). I honestly dont like how they accomplish this. Reminds me of the early days when we used resistors to fool IAT sensors (tricking the ECM into adding fuel and timing) and MAF translators. And it looks like the timing curve is VERY conservative. I really need to see the KR PID. As soon as I get some "supporting mods" installed on this thing, Im digging into the tune...
 
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