What is the stock boost psi for the lbz...

Hi The max i have seen is 23-25P.S.I. stock LBZ .

yeh mine was around 25!

Mine tops out at about 22 PSI.

If you use something like an Edge or other tuner with a monitor on it, you'll see something like 34-36 psi depending on where you live because they read boost from the MAP which includes atmospheric pressure which is ~14.7 psi at sea level. It's really around 20-26 psi above atmospheric.

Only had my boost gauge installed for a week, have seen about 24PSI. Average is 5 to 10 while normall driving.

Mine holds at 22-23 psi at WOT, but in some instances it'll spike 26 psi.

I thank all of you for your help...

Brad ;)

25 sustained 26 on spikes

If you use something like an Edge or other tuner with a monitor on it, you'll see something like 34-36 psi depending on where you live because they read boost from the MAP which includes atmospheric pressure which is ~14.7 psi at sea level. It's really around 20-26 psi above atmospheric.

Stock my analog boost reads 25 PSI, with the Edge on level 6 I have seen it hit 40, I have never seen my Edge at 40.

I have an 06 that has an Edge with Attitude on it, and the most that I have seen is 25psi. Max EGT's so far are only 1100*.

I have an 06 that has an Edge with Attitude on it, and the most that I have seen is 25psi. Max EGT's so far are only 1100*.

What level are you driving it on? Mine hits 32 on the Autometer guage in level 3. 40 is in level 6.

What level are you driving it on? Mine hits 32 on the Autometer guage in level 3. 40 is in level 6.


I've been driving it in level two mostly. I have used level three some as well. This is my first diesel truck, and I am so impressed with the power.:D I really can't afford to break anything though, as this is my tow vehicle and daily driver.

my edge monitor shows 22 to 25 on stock, 32 in level 3, and about 38 in level 5. all at wot.

I've been driving it in level two mostly. I have used level three some as well. This is my first diesel truck, and I am so impressed with the power.:D I really can't afford to break anything though, as this is my tow vehicle and daily driver.


you wont break anything in level 3, levels 4, 5, 6, the converter will slip when it is locked(speaking from experiance). Drive the poo out of it in level 3 and dont worry about it!!!!!!!!!

you wont break anything in level 3, levels 4, 5, 6, the converter will slip when it is locked(speaking from experiance). Drive the poo out of it in level 3 and dont worry about it!!!!!!!!!

Thanks for that info, I might have to drive it around in three a little more often. I might even check out the boost guage a little more often. It's hard to watch the guages when your giggling so hard.:D

Mine held 26 on the dyno and I have seen Spikes at 30 on the road. 25-26 is common for the LBZ.