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Discussion Starter · #1 ·
Has anyone done the twin turbo and was able to find a tune that works when keeping all the emissions? I am in the need of a tune. I might just end up selling it to someone in a state that doesn't require the emissions at this point.
 

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From everything I’ve read, these little motors don’t play well with twins. You might contact duramax tuners and speak with them regarding the tuning aspect.
Single turbo vs twins has nothing to do with "playing well". All that matters is how much power you're going to make on stock internals, the rods are the weak point above 260-280whp.

Has anyone done the twin turbo and was able to find a tune that works when keeping all the emissions? I am in the need of a tune. I might just end up selling it to someone in a state that doesn't require the emissions at this point.
Im guessing you are looking at the SDP kit? They will modify the stock downpipe to keep it all emissions intact, you can run the stock tune when it needs to be tested. As for a custom tune to make power you're probably going to need to look north of the border. Check out Great white north diesel or Same day tuning, call them and see if they can help you out.
 

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Discussion Starter · #4 ·
Single turbo vs twins has nothing to do with "playing well". All that matters is how much power you're going to make on stock internals, the rods are the weak point above 260-280whp.



Im guessing you are looking at the SDP kit? They will modify the stock downpipe to keep it all emissions intact, you can run the stock tune when it needs to be tested. As for a custom tune to make power you're probably going to need to look north of the border. Check out Great white north diesel or Same day tuning, call them and see if they can help you out.
I have had the twin turbo from SDP on my truck for almost 3 years now and have not drove it as it has been sitting at custom shop that never could get a tune that wouldn't throw the MAP sensor code and put the truck into safe mode. I now have it at the GMC dealership to first install a whole new exhaust system since someone stole the entire exahust system front to back of the truck. I will see after that if the dealership can get the truck to not throw codes before I decide to probably put it all back to stock.
 

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I have had the twin turbo from SDP on my truck for almost 3 years now and have not drove it as it has been sitting at custom shop that never could get a tune that wouldn't throw the MAP sensor code and put the truck into safe mode. I now have it at the GMC dealership to first install a whole new exhaust system since someone stole the entire exahust system front to back of the truck. I will see after that if the dealership can get the truck to not throw codes before I decide to probably put it all back to stock.
Are you running the stock map sensor? Its only good up to 29-30 psi. You may want to look into the upgraded one from duramax tuner.
 
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