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  #1  
Old 08-05-2014, 01:37 PM
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turbo boost

Should I not see more boost out of my truck. Pulling roughly 7000 pounds going 55 up.hills here in sc I might see 8 or 9 pounds of boost on my tow/economy setting.. so I took a couple pics empty 1st is economy setting 2 nd is street. Also whats the procedre to do a boost leak test. I got the cap and nozzle, how do I plug off the ccv
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Old 08-05-2014, 02:21 PM
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yeah you should. truck in sig, On a merge on to the freeway kind of acceleration, i am at 12-20, WOT i can hit 32. cruising at 70 around 4 and cruising at 55 about 1. I can hit 32PSI empty or loaded in any of my setting (tow, economy, race)

Your max boost will vary based on the tune and the truck. but even stock you should see more than 9 psi
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Old 08-05-2014, 02:38 PM
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My Max at 3000 rpms is about 20 as shown in the pic on street setting
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Old 08-05-2014, 04:48 PM
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yikes with that size injectors on a stock turbo should be between 30-40 psi

do you actually have 175/80's? who knows with sniper
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Old 08-05-2014, 05:15 PM
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I agree that's why I was asking. Figured it was a leak somewhere or the injectors
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Old 08-05-2014, 10:24 PM
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You have some type of leak. Check your up pipes also.
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Old 08-06-2014, 12:25 PM
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Well found one leak on the driver side boot in the valley. Fixed it and up to 23 at 3000 rpms on econmy. Still hear more leaks tho. Should the system hold.pressure.or.will it leak out naturally
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Old 08-06-2014, 12:55 PM
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Use a little bit of dawn with some water in a squirt bottle and pressure up they system and start spraying connections. Also spray the end caps on the intercooler. Then check your up pipes for soot
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Old 08-06-2014, 05:01 PM
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The up pipes leaking will cause pressure loss
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Old 08-06-2014, 05:40 PM
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Boost leak test only checks the intake side of the boost system so up pipes aren't checked with boost leak test but they will cause a drop in boost and higher egts. How much really depends on how bad the leak is.
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