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It's taken me six months to figure out tuning on direct injection turbocharged engine. I have been very very conservative and for a long time I was using a PsychoSteve tune without a single problem (one of the people I believe knows his stuff without question.)
Anyways, my ECM was "locked i.e. certain factory settings are not accessible with the tuning software I had. I have since acquired the same software Vince uses and unlocked the fuel pressure tables, and some other useful things. The car at present is just under 300WHP with quite a bit more torque than I had previously. I have also upgraded the intercooler, downpipe to a (gasp) off road only catless downpipe. These are my only mods at present tune not withstanding.
The tune itself is much like the Trifecta tune, simply stating it has the aggressive tune and the eco tune. The eco tune is tamer, mostly because I use cam phasing and timing to give the engine the longest possible duration to take in air and least amount of time to get rid of it. This slows down the turbo, demand for fuel to keep the mixture in the right spot is also minimized. Theres so much I just don't understand completely about tuning yet I am not comfortable distributing tunes for other people at present. Besides, my tunes are slightly tamer than even superchips.
Anyways, because the engine can phase the cams, it is forced induction, small, direct injected, and I use all synthetic fluids, I put myself at 40mpg regularly now. My goal has been achieved. Sorry for the run away monolouge guys but If there is ANYTHING y'all would like to ask about direct injection, tuning or forced induction I'll do my best with it. And I will have updated pics for the car when the weather presents me with a brighter day.
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