Diesel Tuner's Blog

How to Boost Test your Duramax

[fa icon="calendar'] May 6, 2016 9:00:00 AM / by Paul Wilson posted in Duramax Performance, duramaxtuner, Duramax, Duramax Power, Charged Air System, Boost Leak, intercooler, Trouble Shooting Duramax, Boost, Turbo, Boost Test

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So many truck come into our shop with high EGT's, turbo lag, excessive smoke output, and bad fuel mileage which are all symptoms of a boost leak. It is so common to devlop boost leak that we now require all trucks to have a boost test done prior to strapping them down on the dyno. What is funny, is that no one shows up knowing they had a boost leak. The reality is that even if you can hit peak boost, you may have a leak, especially if you have a variable vane turbo. Variable vane turbos will change vane position and other operations to try and achieve a disired boost number which may cover up a leak in the charged air system. 

 

 

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