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

What Boost valve

Old Jun 10, 2009 | 11:57 PM
  #1  
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Default What Boost valve

What kind of boost valve are you guys running? I am upgrading to efi live and want to know what boost valve to get. I have a ppe is that good? or is somthing else better? Or do you even need one?? Thanks
 
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Old Jun 11, 2009 | 04:17 AM
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danny told me he hit 35psi without a boost valve. sounds crazy to me. so ask him. but i'm probably gonna keep mine on there when i make the efi live switch. and mine is the PPE.
 
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Old Jun 14, 2009 | 09:23 AM
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Bump..... anyone else???
 
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Old Jun 18, 2009 | 05:24 PM
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PPE does the work just fune, i ran it for a while, still trying new things to the air system
 
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Old Jun 25, 2009 | 02:43 PM
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yeah i was wondering the same thing snoman. how much boost are you hitting with the ppe?
 
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Old Jun 25, 2009 | 09:43 PM
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ive been past 35 psi with my boost valve.

but that boost valve got me thinkin on what happens on the other side of the turbo
 
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Old Jun 27, 2009 | 10:10 AM
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Originally Posted by 2500HeavyDuty
ive been past 35 psi with my boost valve.

but that boost valve got me thinkin on what happens on the other side of the turbo
i feel the same way
 
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Old Aug 14, 2009 | 10:53 AM
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the kennedy boost valve is also a good one it is alot more but you can ajust according to your needs.
 
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Old Aug 14, 2009 | 11:31 AM
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I've seen three LB7 wastegate tabs (the closing tap inside the housing) break off. I'm not sure if it's a defect or what , but you might watch out for it. I've still got one of the housings I think, I'll take some pictures of it!
 
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