Will a bone stock motor produce more than 30 psi of boost?

[MMead]

I want to get the new Isspro 30 psi gauge from Geno's, but I'm afraid I wouldn't be able to tell what my max boost pressure is because the gauge won't register high enough. I read an article (I think in the latest TDR issue) that said boost on an 04. 5 stock truck was just under 30 psi. But then I see posts here that say guys are seeing well over 30 on their stock trucks. Does anyone know for sure what I should expect? (I have no plans to ever modify my motor so I won't need the 60 psi gauge in the future. )

 

[Tomeygun]

I want to get the new Isspro 30 psi gauge from Geno's, but I'm afraid I wouldn't be able to tell what my max boost pressure is because the gauge won't register high enough. I read an article (I think in the latest TDR issue) that said boost on an 04. 5 stock truck was just under 30 psi. But then I see posts here that say guys are seeing well over 30 on their stock trucks. Does anyone know for sure what I should expect? (I have no plans to ever modify my motor so I won't need the 60 psi gauge in the future. )

I say (from experience) get the 60 psi guage

1) you NEVER know if you will bomb in 5 years

2) the mechanical guages are most accurate in the middle (I heard)



So the 60 PSI guage should be more accurate at 30psi then the 35psi guage that is close to maxed out



PS - I have an extra Autmeter "ultra-lite" 35 psi guage if you are interested -- I as put before I would have never guessed I would need a 60psi guage!!

 

[JVolpe]

My 04. 5 600 completely stock spiked to 34psi and would sustain 28-32psi boost on WOT. I have 60psi boost for this reason.

 

[MMead]

What kind of pressure do you guys see cruising on the interstate around 70-75 mph?

 

[Tryingit]

On average my truck will run at around 6 pounds of boost on flat steady ground. Moderate hill runs up to 10-12.

 

[swexlin]

What JVolpe said. I have been able to spike about 32 lbs WOT up hill, and sustain in the mid-20s. These trucks run high boost, and hot EGTs right from the factory.

 

[SVenable]

I want to get the new Isspro 30 psi gauge from Geno's, but I'm afraid I wouldn't be able to tell what my max boost pressure is because the gauge won't register high enough. I read an article (I think in the latest TDR issue) that said boost on an 04. 5 stock truck was just under 30 psi. But then I see posts here that say guys are seeing well over 30 on their stock trucks. Does anyone know for sure what I should expect? (I have no plans to ever modify my motor so I won't need the 60 psi gauge in the future. )

I have seen 32 psi on the new IssPro gage. The 0-60 gage is easy to read and works great.

 

[Wiredawg]

I installed a 60 psi guage on my wife's truck and in staock mode, seems like it maxed out at 28 psi.



Wiredawg

 

[Top Cop]

Wiredawg>>

Sorta new to my Diesel and the fuel pressure gauge , the question is ,is 10 -11 psi ok running at 70 not pulling anything. @ IDLE SPEED I'm RUNNING ABOUT 13 PSI

Retired Air Force Also. 01 2500 SLT GREEN QC 2 WD, AUTO,all stock with the exception of a VAN aAKEN SMART BOX INSTALLED.

 

[mberry]

Top Cop,



Those pressures are good.

 

[DocDetonancour]

Rarely see over 20 at cursing speeds, even on a long pull. Doc

 

[Hokey]

Rarely see over 20 at cursing speeds, even on a long pull. Doc

"cursing speeds") Is that 150mph?LOL :-laf :-laf

 

[Dieselnerd]

Mine also goes to a little over 32 pounds stock. My X-Monitor stores the max values so you can look at it later. Normal cruising around 70 mph empty 6-8 pounds.

 

[drewRoberts]

Ive pegged my 35PSI out more times than I can cound and I'm bone stock. . . except some hacking on the intake down tube, air box and silercer ring

 

[bgilbert]

A 30psi boost gauge shouldn't be used on any year Cummins Turbo Diesel. Minimal run a 40psi gauge. I prefer the 60.

 

[DaveHess]

I bought the DC Service Manuals when I got my 2003. I don't remember the page number but when a DC Tech checks the boost, it should max out at 23-27 PSI. That's on a 2003. I've never seen more than 27 out of mine and it runs about 10-12 at 70 MPH. Just a thought... .

 

[Buddy's Ram]

I run about 6 psi cruising empty at 70. Before the mileage reflash my guage would spike to 32 and settle at 28. After the reflash it will sustain 34 psi until

I back out of it. Truck is stil stock witk 32K on it now. I have the 60psi DiPricol

guage.

 

[RonsRig]

When I check my max readings, I have seen 42 in stock mode. I cruise 70 at about 7-9.

 

[Top Cop]

_MBerry, thanks alot for the letting me know those number are good , now I feel better,

Thanks again.

Top Cop