LB7 Performance Discussion of Chevy and GMC Trucks with LB7 Duramax Turbo Diesel Engines Related To Performance And Longevity

Stock turbo + Wastegate accuator + ppe boost valve = ??

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Old Jan 12, 2010 | 12:45 AM
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Default Stock turbo + Wastegate accuator + ppe boost valve = ??

Will a stock turbo hold up with a Wastgate Accuator and a PPE boost valve? Im trying to run as much boost as i can safely without having to drop 2 grand on a new turbo. Is this a smart decision and is there any other options?
 
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Old Jan 12, 2010 | 12:56 AM
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you may be able to do it, but you have to balance your intake temperature, which rises drastically outside of the turbo's optimal range, as well as drive pressure. You may be able to make more boost but could actually lose power.
 
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Old Jan 12, 2010 | 02:51 AM
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not worth it at all. i dont run a boost valve anymore cause i didnt like how it made the extra boost, and extra boost isnt always the answer, its actually a measurement o restriction and the more boost you push out of the stocker the more heat you will get and the less efficient it will get
 
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Old Jan 12, 2010 | 09:32 AM
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So what would be the most efficient and poweful set up for the stock turbo?
 
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Old Jan 12, 2010 | 10:51 AM
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im using a banks big head actuator, i have it set to 32psi before the IC
 
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Old Jan 12, 2010 | 10:55 AM
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Originally Posted by 2500HeavyDuty
im using a banks big head actuator, i have it set to 32psi before the IC
thats the ticket
 
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Old Jan 12, 2010 | 10:58 AM
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Originally Posted by hotcummins
thats the ticket

iirc banks only recommended like 6 turns or so on the actuator, i have like 16 on there
 
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Old Jan 12, 2010 | 10:59 AM
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is what banks is saying to you
 
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Old Jan 12, 2010 | 08:02 PM
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i havea stock turbo and wastegate with the ppe valve installed between them. i also have the juice w/ additude. on stage five i can push 32# of boost no problem i think thats about the max boost you can get out of a stock turbo becuase it wont go over that 32#. i dont want to go over that without headstuds anyways. i would hate to lift a head
 
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Old Jan 13, 2010 | 05:25 AM
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Originally Posted by cfarley0210
i havea stock turbo and wastegate with the ppe valve installed between them. i also have the juice w/ additude. on stage five i can push 32# of boost no problem i think thats about the max boost you can get out of a stock turbo becuase it wont go over that 32#. i dont want to go over that without headstuds anyways. i would hate to lift a head

ive pushed 37 out of my stock turbo for a while, it sounded cool but really didn't do anything. motor was fine too.

i was able to even push 32 psi with out a boost valve and with the stock waste-gate by dumping a lot of fuel in to the engine, again that really didn't help out either.
 
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