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For starters, DoD isn't VVT. DoD (displacement on demand) was the old name for cylinder deactivation. To answer your question, any tuner can modify VVT functionality to support a more aggressive cam. You're going to need a tune for that modification regardless, so that's not going to be a specific problem you have to deal with separately.
 
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Yea but I don't see many Cruzes in the 300whp range and the heads and turbo really hold us back look at our cfm to a Ford Fiesta st. Their motor is .2 liters bigger than ours but can easily achieve 380hp with a simple tune and turbo upgrade. Their airflow and head design has to be good and if I can get ours as good as that then I'm doing something others haven't.


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A fiesta ST making 380 horsepower on nothing but a tune and turbo swap wont be long for this world.

Maybe I'm off base here, but I don't think you have realistic expectations. Nothing in a stock Cruze is designed to handle 300 whp reliably. You also seem a bit green in terms of performance modding based on your VVT comments. Unless you want to throw codes and live in limp mode, getting your PCM tuned properly is absolutely necessary for major modifications.
 

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The tuning is the least of my issues to be perfectly honest. I have a personal GM tuner that helped write their coding and still help them with patents and will occasionally help GM engineers out. So tuning is the least of my worries. I just really need the hardware.


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You should start by talking with your personal GM tuner, because a good tune on your stock car can easily make an extra 25% more power and torque right off the bat. Otherwise you should get in touch with @jblackburn because he seems to know his stuff.http://www.cruzetalk.com/forum/5096-jblackburn.html
 
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