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High performance products for the newer electronic controlled diesel engines.

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Pittsburgh power turbo question

How can pittsburgh power turbo's have no wastegate while the stock turbo on a 12.7 non egr turbo has one? Common sense tells me that with no wastegate you will overboost.

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The engineers use a waste gate so they can use the same turbo on different horsepower engines. It's a compromise.

The Pittsburgh power turbo has a larger turbine housing. It's 15% larger than the stock Detroit turbo. If you blocked the waste gate on the stock Detroit turbo then you would have to worry about over boost.

The turbo from Pittsburgh power will be fine on the engine until you get upwards of 800 horsepower then you might want to go to a stage 2 turbo.

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If you change turbos, do not go back to the waste gate type, I had a turbo to fail, under a reefer load, and could not wait for Bruce's turbo, I did install a non-waste gate turbo [not as good as PP's] and my engine water temp went down on hard pulls. If you have time do the PP!!

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What is your peak psi on a non waste gate turbo ? My concern is blowing a head gasket.


Mine is 50psi


Thank you. I am considering buying a non wastegated turbo. After installing turbo, did your boost psi go down, stay same ? Your boost at cruising speeds.


Cruising speed on level ground it did go down. It's usually between 0 to 2 psi running 58 mph. As far as top end boost it went way up. The 50 psi is with my ECM tuned otherwise it was around 40 psi stock. Old waste gate turbo played !@#$ to get to 30 psi.


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