Boost Gauge
Post Fiend
Joined: Feb 2007
Posts: 14,541
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From: Dallas-Ft. Worth
Unless you upgrade your turbo and get a tune for it, the 35psi gauge will be fine. The stock turbo is capable of a max of maybe 30psi, but you really don't want to run it above 25. It's very inefficient above that and just super-heats the air. Oh, and unless you have a tuner or chip, don't expect to see much above 18.
Joe
Joe
Post Fiend
Joined: Sep 2006
Posts: 5,584
Likes: 0
From: Millbrook Alabama
Well, now that just depends, Do you plan on adding a turbo that will push higher thatn 35PSI? IF all boots are tight and wastegate actuator is tied shut you can push your stocker to 30ish Psi. but it aint good for it. any benefit of higher PSI is lost after about 26PSI on the stocker(it superheats the air) I wouln't think you would need a vac guage for anything as a diesel engine does not make a vacuum, thats why the manufacturers have to add a vac pump for the hubs and the a/c blend door.
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Senior User
Joined: Feb 2007
Posts: 229
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From: Rockmart GA N.W. GA
i ordered a WW last night and i will definatly be doing more upgrades, i just wanted to know how much boost to expect with a lot of mods. If its easy too get upto and over 35 psi then i will surely buy a 60 psi. When i had my 93 lightning i installed a T-Trim sc and was making 28 psi and that was very modded and maxed out. I know turbos can make more boost than superchargers but wasnt sure if I needed a 60 psi gauge. What is expected boost on heavily modded truck?
Post Fiend
Joined: Sep 2006
Posts: 5,584
Likes: 0
From: Millbrook Alabama
Originally Posted by FroggF350
i ordered a WW last night and i will definatly be doing more upgrades, i just wanted to know how much boost to expect with a lot of mods. If its easy too get upto and over 35 psi then i will surely buy a 60 psi. When i had my 93 lightning i installed a T-Trim sc and was making 28 psi and that was very modded and maxed out. I know turbos can make more boost than superchargers but wasnt sure if I needed a 60 psi gauge. What is expected boost on heavily modded truck?
Post Fiend
Joined: Feb 2007
Posts: 14,541
Likes: 2
From: Dallas-Ft. Worth
Stock turbo with WW should stay around 25psi max (with appropriate tuning). But it will sound very cool doing it... 
Joe
Joe
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Senior User
Joined: Feb 2007
Posts: 229
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From: Rockmart GA N.W. GA
im gonna buy the autometer phantom II gauges and it only comes in 35 and 60 psi so i`ll be buying the 60. thanks for the help guys!
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Senior User
Joined: Feb 2007
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From: Rockmart GA N.W. GA
Originally Posted by Izzy351
Unless you plan on a big turbo, stick with the 35.
Post Fiend
Joined: Feb 2006
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From: Middle Tennessee
Originally Posted by Izzy351
Stock turbo with WW should stay around 25psi max (with appropriate tuning). But it will sound very cool doing it...
Joe
Joe
