Stock boost? - Chevy and GMC Duramax Diesel Forum
11-16 LML Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission, Etc.

LinkBack Thread Tools Display Modes
post #1 of 16 (permalink) Old 11-15-2012, 11:22 AM Thread Starter
Senior Member
Join Date: Mar 2009
Posts: 556
Stock boost?

Tried searching. Can't find info on LML. What's the stock boost. With NP tune on my H&S I'm seeing 29PSI max. Is this the norm?


Sent from my Autoguide iPhone app

2012 Chevy 3500HD LTZ, Crew Long, Z71, EFI Live by No Limit Automotive and Performance, WCF 475 Over Stock, 5" Flo~Pro Turn Down Exhaust, Fass 150, WCF CP4 Delete, Sportsman CP3, Torque Converter, 275/70/18 M55 on Fuel Mavericks, White Line-x rocker panels, White line-x Bushwacker pocket flares, DDM Tuning HIDs 4300k, Hi/Lo Beams, Custom JetCraft sled deck, Nathan K3LA, Onboard Air Via Viair 400c/444c Compressors, Autometer Pillar, with Cobalt Boost, Pyro, Rail Pressure Gauges.
N49ATV is online now  
Sponsored Links
post #2 of 16 (permalink) Old 11-17-2012, 07:55 AM
Senior Member
Hydrant's Avatar
Join Date: May 2009
Posts: 278

07 GMC
Deleted and blocked

Stolen,recovered then traded

2011 Silverado 3500
Stock sold

2009 GMC
Hydrant is offline  
post #3 of 16 (permalink) Old 11-17-2012, 10:20 PM
DuramaxForum Veteran
DENALI HD3500's Avatar
Join Date: Feb 2011
Posts: 1,294
29psi is the max boost that the H&S will read, you may get higher boost with a hot tune, and need an aftermarket boost gauge to see true boost.

2015 SLT CCSB Summit White on Jet Black sunroof/rear slider/driver alert/ cooled/heated leather/nav/ telescope/tilt steer... Z71 package .

Previous:2002 LB7 ECSB
2007.5 LMM CCSB
DENALI HD3500 is offline  
post #4 of 16 (permalink) Old 11-18-2012, 07:23 AM
Duramax Lifetime Supporter
blunova's Avatar
Join Date: Jul 2012
Location: butler, pa
Posts: 2,642
Ive seen 30 with my lbz

2015 Gmc slt loaded, cognito ucas, keys bilstein 5100s,nitto dura grapplers 275-60-20,sonoma red metalic,coca dune leather, gm tri fold toneau cover,factory spray in liner,zone steering stabilizer
1969 ss nova back halved 604 ci big chief, rossler 400,8.42 on motor
blunova is offline  
post #5 of 16 (permalink) Old 11-18-2012, 10:12 AM
DuramaxForum Veteran
crossfire879's Avatar
Join Date: Jun 2010
Location: Fort McMurray Alberta Canada
Posts: 1,766
I hve seen 34psi on my mini maxx. That's running on hot

2015.5 Silverado 2500HD LTZ Z71 CC/SB STOCK..for now..

2012 GMC 2500HD SLT CC/SB Ultimate GFX Edition
EFI live by Kory Willis, Suspension Maxx 2.5" Leveling Kit, 2" Readylift Rear blocks, 35x12.5r20 Dick Cepek FC-II's, Eagle Alloys 20x9, Cognito UCAs, Cognito PISK, Kryptonite tie rod sleeves, H&S mini maxx, FASS titanium 150, 5" Flo Pro straight exhaust, Diamond Eye downpipe, XDP EGR delete, MA PCV reroute, AFE Stage 2 CAI, Autometer Cobalt pyro and boost gauges. GONE
crossfire879 is offline  
post #6 of 16 (permalink) Old 11-19-2012, 12:54 AM
Duramax Lifetime Supporter
LMLFanatic's Avatar
Join Date: Aug 2011
Location: Pearland, Texas
Posts: 924
Originally Posted by DENALI HD3500 View Post
29psi is the max boost that the H&S will read, you may get higher boost with a hot tune, and need an aftermarket boost gauge to see true boost.
I've seen mine go up to 33 on hot with my minimax.

2011 LML- H&S Motorsports CP3 over CP4 kit w/tunes from Kory Willis , 17x9 XD Misfits, 285-70-17 Cooper AT's, Spray on, tool box/50 Gallon Auxillary, tint all around, Ride Rite bags, Ride rite compressor system,H&S Mini Max, Cobalt Pyro, ready lift keys, 5" MBRP straight piped, Rare Part Tie rods, Cognito UCA's, Bilstein 5100's, Fass Titanium 150, ADP downpipe, EGR delete from ADP and Proflow up pipes and manifolds.

To be installed: Built Tranny from Calvins and custom compounds.

Gotta love being a Directional Driller.
LMLFanatic is offline  
post #7 of 16 (permalink) Old 11-20-2012, 09:44 AM
Junior Member
Stevethejeeper's Avatar
Join Date: Jul 2012
Location: Elk Grove, So. Lake Tahoe, CA
Posts: 71
Mine is stock w/AutoMeter boost and pyro. I have seen mine hit 30lbs. a couple times.

Quicksilver/Ebony Chrome Package
Fumoto drain valve, K&N drop in element, MagHytec rear diff cover
Anderson Ultimate 5th wheel hitch to pull our
2013 Brookstone Ruby 310LS (14,000 lb. gross)

Sold to our son:
2011 GMC 2500HD CCSB SLT
Stevethejeeper is offline  
post #8 of 16 (permalink) Old 08-19-2014, 10:45 AM
Join Date: Aug 2014
Posts: 6
very very old thread but....
i got a 2015 lml and a very poor fuel economy for the 2nd parts of my trip plus a humming soung Under the Hood like a exhaust sound
my obdii reader only tells me i have 12.5psi at full thottle with my 9000lbs trailer
what are the lml stock boost number please
walty is offline  
post #9 of 16 (permalink) Old 08-19-2014, 10:50 AM
Senior Member
Join Date: Jan 2010
Location: Long Island, NY
Posts: 491
Send a message via AIM to Djreversal
i think stock boost is in the 24-25 psi area
Djreversal is offline  
post #10 of 16 (permalink) Old 08-19-2014, 12:16 PM
Senior Member
NorskeNY's Avatar
Join Date: Mar 2011
Location: Oswego, NY
Posts: 665
Originally Posted by Djreversal View Post
i think stock boost is in the 24-25 psi area

That is what I usually see with the Edge CTS - max when pulling a fifth wheel.

2011 Chevy Silverado 3500HD LTZ CCLB LML SRW 4X4 Blue Granite Metallic.
Towing a 2012 Cruiser Patriot CF335SS fifth wheel.
Previous DAs:
2005 Chevy Silverado 3500 LT CCLB LLY SRW 4X4 Silver Birch Metallic
2004 GMC Sierra 2500HD SE ECLB LB7 4X4 Sand Beige Metallic
NorskeNY is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Chevy and GMC Duramax Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome