Quote:
Originally Posted by wnta1ss
From what I've read about these DI engines, duty cycle is not what we need to watch. Instead, it's pulse width. There is a very narrow time frame to inject the fuel correctly.
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This.
This is exactly why you want to make sure you tuner has done many many DI setups before going with them for FI. Have a weird mixture NA might mean your engine's nannys have time to save you for a bit. With FI the difference between someone who knows how to tune DI and someone that doesn't is fuel getting shot out of your cylinder from overcompensation and throwing off A/F mixtures (essentially making the mixture seem rich to the sensors, but lean in the cylinder itself)
Just got off the phone with my tuner... He took a look at my logs and said I don't need more fuel unless I plan on bumping up my boost as well. Which is cool considering some people are running out at 10psi as it is. He did mention that I can come back and get rid of meth, but would lose power because of the octane wall of 91 (thanks cali) I guess I'll go back to sitting on my hands instead :P