Chevy/GMC Duramax 01-04 LB7 Discussion of Chevy and GMC Trucks with LB7 Duramax Turbo Diesel Engines

new turbo

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  #1  
Old 12-09-2009, 12:35 AM
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Default new turbo

got me a custom 71mm turbo,new pedistal,down pipe... going to put it in next weekend... anyone have a turbo this big an how much boost do you get??
 
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Old 12-09-2009, 02:46 AM
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depends on what kind of turbo it is. does it have a compressor map?


that downpipe is gonna give you some trouble, if you dont have a long flex head socket wrench i suggest you get one thats about 18 inches in 3/8 drive and a 14mm crows foot will help with the nut on the passenger side of the down pipe.
 
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Old 12-09-2009, 09:59 AM
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ok does it take very long to switch out a turbo
 
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Old 12-09-2009, 01:22 PM
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the hardest part will be getting the downpipe and the up pipes unbolted. i went though two 12pt sockets getting all those pipes loose. they are really right.

i havent swapped a turbo before, but have been a bolt or two away when i was doing my heads itl be a breeze after geting the pipes out of the way.


off topic but, why do you have a 71mm turbo and no built trans?
 
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Old 02-04-2010, 08:04 AM
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just curios, how long did it take you to get the old one out.
 
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Old 02-04-2010, 11:25 AM
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depends on the year model because you have to get the downpipe out and the lb7 ones are a huuuuge pain in the *** to get out. i havent replaced mine yet so i dont know 100%
 
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