23.5 MPG Duramax - Chevy and GMC Duramax Diesel Forum
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Old 05-12-2008, 07:30 AM   eBay Motors  #1 (permalink)
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23.5 MPG Duramax

Well I finished the Diesel Power Challenge last week. My best finish was 3rd in the MPG test, which is 150 mile trip up into the mountains of Utah.

I averaged 23.47 for the trip, even found out I had the A/C on the whole way

This was using an EFI Live tune that dynos 450-475RWHP on stock LBZ's that I sell to customers.

The 1st place truck was using compressed natual gas as well as diesel.
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2007 LBZ tow rig/Daily driver, stock engine 11.70 @ 115mph on #2, 677 HP, MPI Twins
23.5 MPG Diesel Power Challenge 2008
2002 LB7 Max'd Out 9.71@141+MPH on #2 fuel only, MPI Twins


EFI Live, Suncoast Dealer, Dmax Hotrod Parts
Adrenaline Truck Performance 208.484.3670
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Old 05-12-2008, 08:43 AM   eBay Motors  #2 (permalink)
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What kind of setup did the truck have? Like tires, exhaust, intake, tranny, etc....
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Officially sold the truck But bought an H2 that is getting a Dmax
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Old 05-12-2008, 10:29 AM   eBay Motors  #3 (permalink)
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Quote:
Originally Posted by 4x4Fantasy View Post
Was there another model there this time? Christine LeMaster was there last year (WHOA!) and was wondering how they organized it this year.

Was Tomac there at all?

Congrats on 3rd place!!
I ended up 7th overall, but 3rd in the mileage test. Here is a pic with me and the model (same as last year)
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File Type: jpg Diesel Power Challenge filter girl.jpg (94.4 KB, 353 views)
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2007 LBZ tow rig/Daily driver, stock engine 11.70 @ 115mph on #2, 677 HP, MPI Twins
23.5 MPG Diesel Power Challenge 2008
2002 LB7 Max'd Out 9.71@141+MPH on #2 fuel only, MPI Twins


EFI Live, Suncoast Dealer, Dmax Hotrod Parts
Adrenaline Truck Performance 208.484.3670
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Old 05-12-2008, 10:31 AM   eBay Motors  #4 (permalink)
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Quote:
Originally Posted by n0useforaname View Post
What kind of setup did the truck have? Like tires, exhaust, intake, tranny, etc....
I had 285/75/16 BFG A/T tires, MBRP exhaust, AFE intake, and a tranny I built.

Crew Cab 07 LBZ
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2007 LBZ tow rig/Daily driver, stock engine 11.70 @ 115mph on #2, 677 HP, MPI Twins
23.5 MPG Diesel Power Challenge 2008
2002 LB7 Max'd Out 9.71@141+MPH on #2 fuel only, MPI Twins


EFI Live, Suncoast Dealer, Dmax Hotrod Parts
Adrenaline Truck Performance 208.484.3670
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Old 05-12-2008, 02:06 PM   eBay Motors  #5 (permalink)
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Congrats on the outcome! How many tests did you have to do?
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2006 Silverado 2500HD LBZ CC SB
Exterior: Escalade Handles, Front windows tinted to match the rear, painted bumpers & mirrors, billet grille, 305/50/20 Cooper Zeons on BMF Novakanes Death Metal, Cognito Braces, Stainless Sleeves, Train Horns
Interior: 4 Kicker 10in Subs in 2 custom box's, Autometer Ultra lite II Pyro and Boost gauges, Aeroforce Interceptor Gauge, HID Lows & Fogs, Painted accents
Performance: EFI Live Tuned by Blackout Performance, Custom Blackout Performance S475 over stock twins, 45 over stock injectors, MBRP Turbo Back Stainless Exhaust (Straight piped), Raptor Lift Pump, AFE Filter, GMAX6 kit with Suncoast 1057 converter installed by Blackout Performance
1999 Ford F-550 PowerStroke ''Wrecker'' **Jerrdan bed, S&B Intake
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Old 05-12-2008, 03:28 PM   eBay Motors  #6 (permalink)
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Nice Job can't wait to read about it in Diesel Power Mag!!!
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2002 Chevy LB7 Crew Cab
Bone Stock for right now!! Looking to add some real power>
16 inch Helo Rims and 285 Nitto Terra Grapplers

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Old 05-12-2008, 03:43 PM   eBay Motors  #7 (permalink)
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^^ Haha yea they were great. How long do you think until this years comes on sale?! Can't Wait!!
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2002 Chevy LB7 Crew Cab
Bone Stock for right now!! Looking to add some real power>
16 inch Helo Rims and 285 Nitto Terra Grapplers

Thank you Duramax Forums
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Old 05-12-2008, 03:49 PM   eBay Motors  #8 (permalink)
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23.5 mpg...with A/C that's Awesome!!! Congrats!

What was 1st place mpg?
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PPE RACE
Modded OEM AirBox/PCV Reroute/4" MBRP into 5" MagnaFlow/ EGR BLOCKED
Isspro EGT/Boost gauges Cognito Leveling Kit/HD Tie Rods Pitman/Idler Support Brackets/Bilsteins
Pirelli Scorpion ATR 265/75/16 Coated OEM Wheels
Factory Oval Steps/Rhino Lining
Klein Air Horns (4)/ViaAir 150 psi 2g compressor
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Old 05-12-2008, 05:23 PM   eBay Motors  #9 (permalink)
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Rob- please tell us more about this EFI Live tune you sell to customers- what do you do- reflash the computer? Or do we have to have EFI Live to install this? I am assuming that most of use have hand held programmers or something like an Edge or Bully Dog that has a screen monitoring system. I currently get 12 mpg at 70 mph loaded at 5K. When empty I get 14 around town and 16 on the highway. It would be great to improve on this!!
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2006 2500 LBZ CCLB * NFAB STEP BARS * PPE MANIFOLDS/UPPIPES
35" TOYO OC MT'S 18" GEAR BIG BLOCKS * FABTECH 6" LIFT * FABTECH HD TIE RODS
S&B CAI * LOAD LIFTER 5000 AIRBAGS * PPE DEEP PAN * PPE SHIM KIT
4" STRAIGHT PIPE EXHAUST * MBRP 5" TIP * DIAMONDEYE DOWNPIPE
BANKS INTERCOOLER * RESONATOR HOLE PLUGGED * AIRDOG II 165
EDGE INSIGHT MONITOR * ALLIGATOR PERFORMANCE FULL EGR DELETE
EFILIVE DSP5 * BLACKDIRTYMAX PPE5 TRANS ML CONVERTER
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Old 05-12-2008, 08:52 PM   eBay Motors  #10 (permalink)
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I can reprogram your ecm, or sell you EFI Live with this tune included free to match your truck, and you can do it yourself. Tire size, speed limiter, egr delete, etc. The skys the limit with EFI.
__________________
2007 LBZ tow rig/Daily driver, stock engine 11.70 @ 115mph on #2, 677 HP, MPI Twins
23.5 MPG Diesel Power Challenge 2008
2002 LB7 Max'd Out 9.71@141+MPH on #2 fuel only, MPI Twins


EFI Live, Suncoast Dealer, Dmax Hotrod Parts
Adrenaline Truck Performance 208.484.3670
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