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| 07.5-2010 LMM 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 Ect |
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12-24-2012, 09:39 PM
| eBay Motors #1 (permalink) |
| Junior Member  Join Date: Dec 2012 Location: Victoria, BC
Posts: 153
| Typical turbo boost? What's typical turbo boost pressure? This is my first dmax and seems to produce far less boost than my cummins did, I did have an actual mechanical boost gauge on my cummins where as I'm getting my reading thru my edge on my dmax, it doesn't produce a lot of boost, probably like 12-15 psi when I get in to it. It's got lots of power so I assume the turbo is working fine, just curious |
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12-24-2012, 10:56 PM
| eBay Motors #2 (permalink) |
| DuramaxForum Veteran  Join Date: May 2011 Location: Columbia, South Carolina
Posts: 1,285
| What year truck? My lb7 peaks at 27. Sounds like you may have a leak somewhere
__________________ TYLER LB7 2500 HD LT 6" ZONE, Cognito UCAs, 37" Toyo MTs, 22" Fuel Hostage EFI Live by ATP, Edge Insight CTS, S&B intake, Pro-Fab turbo mouth piece, PPE boost valve, Alligator CAT adapter, 5" Diamond Eye exhaust, 6" MBRB tip |
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12-24-2012, 10:59 PM
| eBay Motors #3 (permalink) |
| Junior Member Join Date: Dec 2012 Location: Victoria, BC
Posts: 153
| 2008, I've never actually put my foot to the floor, but my dodge definitely produced more going up the mountain |
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12-24-2012, 11:02 PM
| eBay Motors #4 (permalink) |
| DuramaxForum Veteran Join Date: May 2011 Location: Columbia, South Carolina
Posts: 1,285
| I can hit 15 easy just pulling out of a parking lot. I think my buddies lmm peaks at 35. Hit it and see what it makes.
__________________ TYLER LB7 2500 HD LT 6" ZONE, Cognito UCAs, 37" Toyo MTs, 22" Fuel Hostage EFI Live by ATP, Edge Insight CTS, S&B intake, Pro-Fab turbo mouth piece, PPE boost valve, Alligator CAT adapter, 5" Diamond Eye exhaust, 6" MBRB tip |
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12-24-2012, 11:03 PM
| eBay Motors #5 (permalink) |
| DuramaxForum Enthusiast  Join Date: Jun 2011 Location: Bellingham, Wa
Posts: 2,764
| smaller turbo probably(cummins). Really lay into it..
__________________ Gideon  01 LB7 EC/SB Ally 4x4 shop ornament DD: 1990 4runner completely stock 4x4 3.slow Big Thanks To Adrenaline Truck Performance, Alligator Diesel Performance, and Socal Diesel Last edited by Thebiggids; 12-24-2012 at 11:06 PM. |
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12-24-2012, 11:05 PM
| eBay Motors #6 (permalink) |
| Junior Member Join Date: Dec 2012 Location: Victoria, BC
Posts: 153
| Will do guys thanks, hey dirty lets see a pic of those hostages!! I just ordered myself those in 22 as well |
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12-24-2012, 11:07 PM
| eBay Motors #7 (permalink) |
| Junior Member   Join Date: May 2012 Location: Great Falls, Mt
Posts: 103
| I've had 34 on my lmm with a stock turbo according to my edge insight. Sent from my iPhone using AutoGuide.com Free App
__________________ 2007.5 Chevrolet Silverado 2500HD EFI Live by Idaho Rob K&N cold air intake MBRP dp back 4" exhaust Air Dog 2 165 Edge CS Insight Dick Cepek 17x9 GM8 Wheels |
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12-25-2012, 03:39 PM
| eBay Motors #8 (permalink) | |
| DuramaxForum Veteran  Join Date: Jul 2007 Location: ObamaNation-Under the Dictator's rule
Posts: 1,871
| Quote:
Check out the CFM differences between the Duramax and Cummins heads.....you'll see why they require more boost and generally smoke more. The old 12V Cummins heads are really pathetic.
__________________ Ham Radio= Global communications without airtime fees My Antenna-SteppIR Si Vis Pacem, Para bellum !!!! ======================== 07' Chevy Silverado HD --CC, SB 4X4 Duramax Diesel/ 6 spd Allison Auto (PTO high idle mod) --EFILive tuning by ...ME with 68MM 4094VA Garrett Powermax Stage 2 Turbo --SILVERLINE 4" Stainless Exhaust, Modded stock Airbox and LIBERATOR Stainless Downpipe --AMSOIL Synthetics and filtration bumper to bumper, including Bypass --DDM tuning HID's in Low and High Beams, 6000K Lows/4250K Highs --PPE rear Diff cover, PPE Deep Trans Pan, PPE High Flow Manifolds and Up Pipes --Danville 3" Y Bridge and big air intake kit / EGR delete | |
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12-25-2012, 04:19 PM
| eBay Motors #9 (permalink) |
 Join Date: Sep 2010
Posts: 4
| Do you have a boost fooler? I have one an the more you crank the knob the less it will read I'm running a mechanical guage now |
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12-25-2012, 04:34 PM
| eBay Motors #10 (permalink) |
| Senior Member  Join Date: Jun 2009 Location: South Alberta
Posts: 389
| Stock and my 90 horse tune my truck hits 25psi. 160 horse it will peak at 32psi. Sounds like you may have a boost leak somewhere.
__________________ 07 Red CCSB Classic LT. LBZ/6 speed Magnaflow DP, 5" MBRP Exhaust, 6" Black MBRP tip, All Season Trans Lines + PCV reroute + Tie Rod sleeves, Autometer Phantom II Boost/Pyro, PPE Hot +2, AD165, Edge Insight CTS Weathertech Floor Mats + Tinted front windows and eyebrow 6K HIDs (Lows, Fogs), Recon big rig ice lights + white lightning Tailgate bar + L.E.D interior lights + 2x Rigid off-road lights |
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