Smarty Jr = Worst Fuel Mileage?

Hamdog16 · 07-05-2008, 10:22 AM

I just installed all the gauges that are listed on my signature. I still have to prime the fuel gauge to get that working right, at the same time I installed my Smarty jr on the 70hp level. I'm getting 4mpg less than I was at stock. This is driving the truck conservatively and not letting my boost get above 10-15psi. I was getting a consistant 19-20mpg stock without the programmer now I'm getting 16mpg. All of what I've read on here states that people have beening getting 2-3 mpg improvement. Is there another download I have to install in order to get an improvement in mpg? I know the few times I really got on the truck and the boost up to about 28psi smokes roles off the tail pipe. I know this could be a stupid question but could the fuel gauge have something to do with it? I checked all the fittings and no diesel fuel is leaking out of the connections. What could be the problem?

Oh and I just changed the fuel filter and oil about a 1000miles ago.

__________________
2005 Dodge Ram 2500 4x4 SLT QC, Auto, 5" Turbo Back FBD Exhaust, AFE Stage 2 CAI, Danin Optix EGT, Tranny, Fuel, and Boost gauges, Smarty Jr....

***TEX*** · 07-05-2008, 01:06 PM

hummmmm please let me know what you find out. i too am thinking about getting a JR for my 06

__________________
2006 Quad Cab-Short bed-4X4-CTD-SLT-Silver-Auto-3.73-Big Horn Pkg-AeroTurbine 4040XL-MBRP 5" Dual Wall Angle Cut Tip see garage for pics-Blue Cool Hose Kit-Amsoil 4510-ISSPRO Turbo Timer/Monitor-285 BFG AT'S-BMK 11 By Pass-Draw Tite Gooseneck Hitch-DiPricol Optix Gauges Boost,EGT,Trans Temp
Wife:2005 VW Passat TDI
Work: 2004 Pierce Contender with 8.3L Cummins---Fire Truck

**nfkfirefighter** · 07-05-2008, 01:09 PM

I dont know much about the smarty but i know i got better millage when i installed my ez.. the 40hp setting is the best for millage i think your on a setting a little to high... i dont know if that is the lowest setting but you have to play around and see what works for you.. as far as the fuel pres gauge im not sure if that would have anything to do with it?..

__________________
Tony Peterson - ACDC
Just My Toy

United States Air Force Firefighter! 03 White QCSB 6 Sp. H.O. isspros and a "few" mods from the site sponsors.. there the best! http://www.cumminsforum.com/forum/site-sponsors/ new lift pump and cp3 are in..

***dustin88d*** · 07-05-2008, 01:14 PM

hmm... Mine is on 70hp all the time. I didn't really gain much MPG but didn't loose any mpg. Then again I have never "babied" it a full tank either. Depending on my right foot, I get 13-15 mpg all in town driving.

__________________
2004.5, CTD, Reg. Cab, SLT, 4x4 off-road, 285 BFG ATs, 48RE, 4.10s, 5" TBE, 6" SS tip, AEM Dry Flow, silencer ring MIA,

Smarty Jr, Autometer, Pyro, Boost, Trans, Raptor 100

Last edited by dustin88d : 07-05-2008 at 01:19 PM.

D45 · 07-05-2008, 01:44 PM

Quote:

Originally Posted by dustin88d

hmm... Mine is on 70hp all the time. I didn't really gain much MPG but didn't loose any mpg. Then again I have never "babied" it a full tank either. Depending on my right foot, I get 13-15 mpg all in town driving.

I also run mine on the #2 Towing setting, which is 70 HP/140 TQ.

I noticed a 0.2 MPG increase, no where near 2-3 mpgs.

__________________
'04 Ram QC 3500 SRW LB 4WD; 305/555 HO CTD, LT315s, H2s, Fabtech 4.5", 2.25" Dirt Logics, MBRP 5" Straight Pipe Exhaust, AFE Bladerunner, IceBox Intake, Cool Hose....SMARTY JR

Hamdog16 · 07-05-2008, 02:06 PM

Did anyone notice a decrease in mpg? I baby it, and have gotten a 16 mpg on 2 tanks now. Before I was getting 19-20 mpg.

__________________
2005 Dodge Ram 2500 4x4 SLT QC, Auto, 5" Turbo Back FBD Exhaust, AFE Stage 2 CAI, Danin Optix EGT, Tranny, Fuel, and Boost gauges, Smarty Jr....

Danderson · 07-05-2008, 02:14 PM

Quote:

Originally Posted by Hamdog16

Did anyone notice a decrease in mpg? I baby it, and have gotten a 16 mpg on 2 tanks now. Before I was getting 19-20 mpg.

I haven't noticed any change in mpg improvement. It has enhanced the driveability so much,that when I return it to stock ocassionally,its a dog.

__________________
'07 2500 SLT,5.9,reg.cab.,G-56, 4wd,8' Northstar popup 24/7. Lorenz 2.25 SAW w/Carli long travel airbags. AFE Bladerunner. Smarty Sr. Revo.

Joe Reitman · 07-05-2008, 02:26 PM

I will be watching thsi thread closely. I really like the idea of mpg improvement, but will not pay $495 for far less improvement than airing up my tires...

__________________
John 3:16, John 14:6. Silver 06 Mega Cab Dually G56 2wd 3.73, Traction Bars, Gooseneck, Iggee seat covers, Tekonsha Controller, Opti Lube Summer Blend, Mopar Tailgate Spoiler, Rokktech '03 KX250/310, '01 KX500

Heimz · 07-05-2008, 02:32 PM

The driveability ALONE makes it worth its pricetag. My truck accelerates like a bat out of hell and gets about the same mileage stock (.5-1.0) improvement. If I baby it for a hundred miles and fill up, I can easily reach 20mpg handcalculated. Not bad for over FOUR HUNDRED HORSEPOWER on an otherwise stock engine. Sheesh, people.

__________________
2006 2500 4x4 CTD
Folgers Can Leveling Spacer, Crushed Beer Can Add-A-Leaf, and Old English Remote Reservoir Shocks.

***madakira*** · 07-05-2008, 02:45 PM

Quote:

Originally Posted by Halibrand

The driveability ALONE makes it worth its pricetag. My truck accelerates like a bat out of hell and gets about the same mileage stock (.5-1.0) improvement. If I baby it for a hundred miles and fill up, I can easily reach 20mpg handcalculated. Not bad for over FOUR HUNDRED HORSEPOWER on an otherwise stock engine. Sheesh, people.

I am getting about the same. On a recent trip to Vegas from Southern California I hand calculated 21.4 mpg. That is from the beach all the way to the casinos. I even had to travel over the Sierras.

I am not sure of my mileage before the Jr, as i ordered the Smarty before I even bought my truck.

__________________
2004.5 Patriot Blue Quad Cab Cummins Laramie 4x4
Smarty Jr, 2.5" eveling kit 35" Mickey Thompson MTZ's

MikeyB · 07-05-2008, 06:49 PM

Hamdog,
Are you using the overhead or hand calculating for the fuel economy? I wouldn't trust the 'Guess-O-Meter'.

MikeyB

__________________
'03 2500 QC SWB 2wd, 305/555, NV5600, 3.73 LS, Airbox mod w/Amsoil Ea, Fogzilla mod, Adjustable boost elbow, PML diff cover, Westach boost/EGT gauge, Line-X, Sirius, Toyo OC AT 285/70/17 E, Daystar 1.5" lift, Monroe Reflex, Raptor RP100, SMARTY, Lazarsmith Intake

Motoracer057 · 07-05-2008, 08:45 PM

I ran mine on 70hp for a while and had mild mpg gains but a couple weeks ago I loaded the 100hp onto my truck and have seen some real nice mpg gains(hand calculated)

__________________
2007 2500 5.9 CTD...Smarty Jr, full straight pipe, BHAF, torque tube gutted, Silencer ring MIA, leveling kit with 35/12.50 Cooper STTs(more to come as soon as i can

)

07-05-2008, 10:22 AM	#1 (permalink)
Hamdog16 Cummins Fan Join Date: Dec 2007 Posts: 96 Hamdog16's Truck Pics	Smarty Jr = Worst Fuel Mileage? I just installed all the gauges that are listed on my signature. I still have to prime the fuel gauge to get that working right, at the same time I installed my Smarty jr on the 70hp level. I'm getting 4mpg less than I was at stock. This is driving the truck conservatively and not letting my boost get above 10-15psi. I was getting a consistant 19-20mpg stock without the programmer now I'm getting 16mpg. All of what I've read on here states that people have beening getting 2-3 mpg improvement. Is there another download I have to install in order to get an improvement in mpg? I know the few times I really got on the truck and the boost up to about 28psi smokes roles off the tail pipe. I know this could be a stupid question but could the fuel gauge have something to do with it? I checked all the fittings and no diesel fuel is leaking out of the connections. What could be the problem? Oh and I just changed the fuel filter and oil about a 1000miles ago. __________________ 2005 Dodge Ram 2500 4x4 SLT QC, Auto, 5" Turbo Back FBD Exhaust, AFE Stage 2 CAI, Danin Optix EGT, Tranny, Fuel, and Boost gauges, Smarty Jr....

07-05-2008, 01:09 PM	#3 (permalink)
nfkfirefighter AZ Chapter President Join Date: Sep 2006 Location: Tucson Arizona! Posts: 1,665 nfkfirefighter's Truck Pics	I dont know much about the smarty but i know i got better millage when i installed my ez.. the 40hp setting is the best for millage i think your on a setting a little to high... i dont know if that is the lowest setting but you have to play around and see what works for you.. as far as the fuel pres gauge im not sure if that would have anything to do with it?.. __________________ Tony Peterson - ACDC United States Air Force Firefighter! 03 White QCSB 6 Sp. H.O. isspros and a "few" mods from the site sponsors.. there the best! http://www.cumminsforum.com/forum/site-sponsors/ new lift pump and cp3 are in..

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07-05-2008, 01:06 PM	#2 (permalink)
*TEX* Diesel Head Join Date: Nov 2006 Location: TAYLOR TX/CARIBOU ME Posts: 2,340 TEX's Truck Pics	hummmmm please let me know what you find out. i too am thinking about getting a JR for my 06 __________________ 2006 Quad Cab-Short bed-4X4-CTD-SLT-Silver-Auto-3.73-Big Horn Pkg-AeroTurbine 4040XL-MBRP 5" Dual Wall Angle Cut Tip see garage for pics-Blue Cool Hose Kit-Amsoil 4510-ISSPRO Turbo Timer/Monitor-285 BFG AT'S-BMK 11 By Pass-Draw Tite Gooseneck Hitch-DiPricol Optix Gauges Boost,EGT,Trans Temp Wife:2005 VW Passat TDI Work: 2004 Pierce Contender with 8.3L Cummins---Fire Truck

07-05-2008, 01:14 PM	#4 (permalink)
*dustin88d* Cummins Nut Join Date: Aug 2007 Location: Indiana Posts: 494 dustin88d's Truck Pics	hmm... Mine is on 70hp all the time. I didn't really gain much MPG but didn't loose any mpg. Then again I have never "babied" it a full tank either. Depending on my right foot, I get 13-15 mpg all in town driving. __________________ 2004.5, CTD, Reg. Cab, SLT, 4x4 off-road, 285 BFG ATs, 48RE, 4.10s, 5" TBE, 6" SS tip, AEM Dry Flow, silencer ring MIA, Smarty Jr, Autometer, Pyro, Boost, Trans, Raptor 100 Last edited by dustin88d : 07-05-2008 at 01:19 PM.

07-05-2008, 02:06 PM	#6 (permalink)
Hamdog16 Cummins Fan Join Date: Dec 2007 Posts: 96 Hamdog16's Truck Pics	Did anyone notice a decrease in mpg? I baby it, and have gotten a 16 mpg on 2 tanks now. Before I was getting 19-20 mpg. __________________ 2005 Dodge Ram 2500 4x4 SLT QC, Auto, 5" Turbo Back FBD Exhaust, AFE Stage 2 CAI, Danin Optix EGT, Tranny, Fuel, and Boost gauges, Smarty Jr....

07-05-2008, 02:26 PM	#8 (permalink)
Joe Reitman Cummins Enthusiast Join Date: Aug 2007 Location: North Georgia Posts: 214 Joe Reitman's Truck Pics	I will be watching thsi thread closely. I really like the idea of mpg improvement, but will not pay $495 for far less improvement than airing up my tires... __________________ John 3:16, John 14:6. Silver 06 Mega Cab Dually G56 2wd 3.73, Traction Bars, Gooseneck, Iggee seat covers, Tekonsha Controller, Opti Lube Summer Blend, Mopar Tailgate Spoiler, Rokktech '03 KX250/310, '01 KX500

07-05-2008, 02:32 PM	#9 (permalink)
Heimz Cummins Fan Join Date: Jan 2008 Posts: 63 Heimz's Truck Pics	The driveability ALONE makes it worth its pricetag. My truck accelerates like a bat out of hell and gets about the same mileage stock (.5-1.0) improvement. If I baby it for a hundred miles and fill up, I can easily reach 20mpg handcalculated. Not bad for over FOUR HUNDRED HORSEPOWER on an otherwise stock engine. Sheesh, people. __________________ 2006 2500 4x4 CTD Folgers Can Leveling Spacer, Crushed Beer Can Add-A-Leaf, and Old English Remote Reservoir Shocks.

07-05-2008, 06:49 PM	#11 (permalink)
MikeyB Diesel Freak Join Date: Jan 2006 Location: Tomball, Texas Posts: 631 MikeyB's Truck Pics	Hamdog, Are you using the overhead or hand calculating for the fuel economy? I wouldn't trust the 'Guess-O-Meter'. MikeyB __________________ '03 2500 QC SWB 2wd, 305/555, NV5600, 3.73 LS, Airbox mod w/Amsoil Ea, Fogzilla mod, Adjustable boost elbow, PML diff cover, Westach boost/EGT gauge, Line-X, Sirius, Toyo OC AT 285/70/17 E, Daystar 1.5" lift, Monroe Reflex, Raptor RP100, SMARTY, Lazarsmith Intake

07-05-2008, 08:45 PM	#12 (permalink)
Motoracer057 Cummins Fanatic Join Date: Feb 2008 Location: Macon, Ga Posts: 135 Motoracer057's Truck Pics	I ran mine on 70hp for a while and had mild mpg gains but a couple weeks ago I loaded the 100hp onto my truck and have seen some real nice mpg gains(hand calculated) __________________ 2007 2500 5.9 CTD...Smarty Jr, full straight pipe, BHAF, torque tube gutted, Silencer ring MIA, leveling kit with 35/12.50 Cooper STTs(more to come as soon as i can )