09-22-2016, 02:39 AM
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#21 (permalink)
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Master EcoModder
Join Date: Dec 2014
Location: Butte, Montana
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Install a fast response probe EGT.
Run the absolute lowest temp posable to maintain speed. EG. I run 500° f in the flats 600° mild hill 750-800° f for mountain passes @60-65 mph
Wrap the turbo and exhaust manifold to retain more heat energy inside the system instead of cooking everything under the hood. .the wrap has reduced my under hood temps drastically. Reduction of 100° across the bord EG before 1psi=600° f after 1psi =500°f . Much faster spoolas well.
synthetic oil Everything P/S , M. trans , diff.×2, T-case, grease. DO your Preventative Maintenence synthetic mobile 1 appears to have reduced my EGT by 50-75°f EG 70 mph is normally 700-750°f now 600°f and virtually eliminated my cooldown time (from 1-5min to .25-1min to reach 300-350°f ), idle temp reduction of 25-40°f
If you want tall tires go with 255/85R 16(33×10.00R16) my medium 235/85R16 (32×925R16)
Short 215/85R16 (30×850R16) as compaired to a 245/75 R16 (30.5×9.5R16) if your truck is running 18"s just add 2"to the OD
Use the Defrost as little as possible in winter. This setting uses the AC compressor to dehumidify the air before blowing it on cold glass.
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Question for the 3rd gen owners .
Can the extra "cleaning "injection event with the exhaust valve open be programmed out of existence?
__________________
1st gen cummins 91.5 dodge d250 ,HX35W/12/6 QSV
ehxsost manafulld wrap, Aero Tonto
best tank: distance 649gps mi 24.04 mpg 27.011usg
Best mpg : 31.32mpg 100mi 3.193 USG 5/2/20
Former
'83 GMC S-15 Jimmy 2door 2wd O/D auto 3.73R&P
'79 Chevy K20 4X4 350ci 400hp msd custom th400 /np205. 7.5-new 14mpg modded befor modding was a thing
87' Hyundai Excel
83 ranger w/87 2.9 L FI2wd auto 18mpg on the floor
04 Mitsubishi Gallant 2.4L auto 26mpg
06 Subaru Forrester XT(WRX PACKAGE) MT AWD Turbocharged 18 plying dirty best of 26mpg@70mph
95Chevy Blazer 4x4 auto 14-18mpg
04 Chevy Blazer 4x4 auto 16-22mpg
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09-22-2016, 04:04 PM
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#22 (permalink)
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Master EcoModder
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Quote:
Originally Posted by slowmover
As travel trailers are tall ( this is huge; today's are higher due to slide outs).
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This explains a lot to me about my new Forester River product. I was wondering why the built it so high up, basically completely flat floor, deckover design, no wheel wells. I was thinking it was because of the new off-road style campers being popular with many people flipping the axles to gain ground clearance. Now I realize from what you said it's the only way to allow the entire wall to slide which mine does. That slide is the reason we bought this trailer, when opened up it makes a basically open floor 11'x17' aera, then 2 queens expand out of each end, Feels like a cabin inside.
So at least they skinned the bottom. I wonder if a slightly raised and skinned pickup wouldn't be a nice match and actually let a window of air go underneath. Axles, jacks, and tank drains are all still a mess under there though. I also don't think they could have used a higher profile AC unit up top either. I should just stop worring about mpg and accept it. Worst case it costs me $1000/yr in gas, probably more like $500 and any improvements in either truck or trailer won't save more then 1/2 that. In 11 years when I retire and plan on doing some more serious miles we can rethink our rig.
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09-25-2016, 04:24 PM
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#23 (permalink)
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Human Environmentalist
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Quote:
Originally Posted by gumby79
Question for the 3rd gen owners .
Can the extra "cleaning "injection event with the exhaust valve open be programmed out of existence?
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I'm a 2nd gen owner, so don't take my word for it, but I believe the '03-'04 3rd gens don't have any extra emission stuff and don't have a "cleaning injection event". That would only be needed for a DPF, right?
The '04.5 and on trucks add a cat, in which case I'm not sure if extra fuel needs to be dumped in to clean it or not.
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09-26-2016, 08:50 PM
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#24 (permalink)
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Banned
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The 305/555 motor is late '03 to early '04. Xmas of '04 and the 325/600 motor does have 3rd injection event.
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09-27-2016, 12:38 AM
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#25 (permalink)
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Master EcoModder
Join Date: Apr 2011
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I installed 3.42 gears on my 3rd gen 4x4. It was good for nearly 15% in my case.
I loaf around at well below ideal RPM's whenever there is little to no load.
__________________
2007 Dodge Ram 3500 SRW 4x4 with 6MT
2003 TDI Beetle
2002 TDI Beetle
currently parked - 1996 Dodge 2500 Cummins Turbodiesel
Custom cab, auto, 3.55 gears
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09-27-2016, 01:59 PM
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#26 (permalink)
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Corporate imperialist
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Did you start with 3.73 or 4.10 gears?
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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09-28-2016, 12:37 AM
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#27 (permalink)
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Master EcoModder
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3.73
Going from 4.10 would be dramatic.
__________________
2007 Dodge Ram 3500 SRW 4x4 with 6MT
2003 TDI Beetle
2002 TDI Beetle
currently parked - 1996 Dodge 2500 Cummins Turbodiesel
Custom cab, auto, 3.55 gears
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10-22-2016, 03:02 PM
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#28 (permalink)
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Banned
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Well, OP, didn't mean to scare you off by rambling all over the place on the topic of CTD mpg.
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11-12-2016, 03:00 PM
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#29 (permalink)
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Master EcoModder
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Any updates on this Wyodaniel?
I have still been kicking around trucks here. I found a 2004 I kind of like but it's the 325hp version and an auto. I also found a 2003 but it's the non HO and also an automatic which apparently is the 47RE not the 48RE. The 2004 I looked at is showing over 20 mpg on the overhead lie-o-meter which is promising as the dealer has been using it to move locations across town. That truck looks stock but the exhaust might be a bit bigger and I didn't see a cat with I think the 2004.5 should have right? It has an exhaust temp gauge as well which makes me think it may have been or currently is chipped. At least it still has factory ride height and 265 series tires. So many I look at are jacked up on 35" tires or more.
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11-15-2016, 10:40 AM
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#30 (permalink)
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EcoModding Apprentice
Join Date: May 2016
Location: Colorado
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Both of my dodges 98 and 99 have 355 gears. 411 was offered. Changing ring and pinion gears will cost you in the neighbourhood of 4000 bucks. Many vehicles benifit from lowering the final drive ratio, but your truck won't unless you have the 411 gearing. Check the sticker under the hood. Taller tires are a cheaper route. Think about a tunner like edge or equivalent. I think the 03 to 07 came with a cat. Remove that for less restriction. Getting into the 20 plus mpg range isn't hard. Look up dieseldave on this forum and prepare to be impressed.
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