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99 dodge ram 5.9 gas real world mileage with superchips
Posted By: kenworth_goose
99 dodge ram 5.9 gas real world mileage with superchips - 10/14/14 01:48 AM
ok, been waiting to post until I got some real mileage figures. Ready to be shocked?
Bone stock without tuner and no power as well.
143 miles, 5.76 gallon that's 24.8 mpg!
Bone stock without tuner gutted convertor, no air filter, new plugs, new upstream o2, 127 miles,4.82 gallon, that's 26.3mpg!!!
New parts, gutted convertor, No air filter 87 tune,178 miles, 8.76 gallons. 20.31 mpg!!!
New parts, gutted convertor, no air filter, tow tune with 70 mustang and 16 ft trailer, 137 miles, 9.71 gallons, 13.1 mpg. 65-75 mph
91 tune, 83 miles, 5.35 gallons, 15.5 mpg!
every test was at 55mph with the cruise on empty except for the tow tune setting. Get ya some of that!!!!
If you own a newer vehicle and you don't have some kind of programmer, your crazy for not! The power difference is incredible!
I haven't tried the mileage setting as of yet but I will be soon.
Posted By: HotRodDave
Re: 99 dodge ram 5.9 gas real world mileage with superchips - 10/14/14 02:49 AM
Quote:
ok, been waiting to post until I got some real mileage figures. Ready to be shocked?
Bone stock without tuner and no power as well.
143 miles, 5.76 gallon that's 24.8 mpg!
Bone stock without tuner gutted convertor, no air filter, new plugs, new upstream o2, 127 miles,4.82 gallon, that's 26.3mpg!!!
New parts, gutted convertor, No air filter 87 tune,178 miles, 8.76 gallons. 20.31 mpg!!!
New parts, gutted convertor, no air filter, tow tune with 70 mustang and 16 ft trailer, 137 miles, 9.71 gallons, 13.1 mpg. 65-75 mph
91 tune, 83 miles, 5.35 gallons, 15.5 mpg!
every test was at 55mph with the cruise on empty except for the tow tune setting. Get ya some of that!!!!
If you own a newer vehicle and you don't have some kind of programmer, your crazy for not! The power difference is incredible!
I haven't tried the mileage setting as of yet but I will be soon.
Looks like you got your best MPG without the tuner 
Posted By: buildanother
Re: 99 dodge ram 5.9 gas real world mileage with superchips - 10/14/14 03:07 AM
It's what it looks like to me.
Posted By: sthemi
Re: 99 dodge ram 5.9 gas real world mileage with superchips - 10/14/14 03:11 AM
Yes,
That is what it looks like, I cant imagine being happy about loosing almost 10 MPG..
The superchips can stay on the shelf...that is just nuts...
If my 01 Ram got 20 MPG, I would be sending a thank you note to all the Chrysler engineers...
Posted By: HotRodDave
Re: 99 dodge ram 5.9 gas real world mileage with superchips - 10/14/14 03:20 AM
Set the cruise at 55 mph, don't go up any hills, slow down for traffic or get any head wind and your truck will get 20 mpg but no one drives that way. There are some mods I can tell you first hand will help you get 20 with more normal driving.
Posted By: SuperStockWagon
Re: 99 dodge ram 5.9 gas real world mileage with superchips - 10/14/14 03:37 AM
Quote:
If my 01 Ram got 20 MPG, I would be sending a thank you note to all the Chrysler engineers...
I've personally never experienced nor witnessed a full size truck with a 5.9 get 20+mpg in normal driving conditions..but I guess anything is possible,I'm thinking its just not the norm.
Hey KG is your 99 5.9 truck a 2wd?
Posted By: poorboy
Re: 99 dodge ram 5.9 gas real world mileage with superchips - 10/14/14 03:48 AM
My son's 99 5.9 4x4 pulled 18 something at 80 mph on several occasions after the new Y pipe and both O2s. I'd be happy with that, I don't usually drive that fast. Gene
Posted By: kenworth_goose
Re: 99 dodge ram 5.9 gas real world mileage with superchips - 10/14/14 07:06 AM
Quote:
Quote:
If my 01 Ram got 20 MPG, I would be sending a thank you note to all the Chrysler engineers...
I've personally never experienced nor witnessed a full size truck with a 5.9 get 20+mpg in normal driving conditions..but I guess anything is possible,I'm thinking its just not the norm.
Hey KG is your 99 5.9 truck a 2wd?
I didn't buy the superchips tuner for the mileage, I bought it because my truck is an absolute dog without it. I could drive anywhere and hit a hill or very small grade and it would feel like you had the brakes on! It has the "death tune" in the pcm. When I bought the truck it used 1 quart of oil every 100 miles, had zero power, pinged like crazy. My bicycle could go faster than this thing would. I found the lower intake plenum gasket was blown in 5 different places. I ordered the engine kit from hughes engines. REplaced the spark plugs, upstream o2, gutted the convertor. The rest is history. This truck is a 4x4 3/4 ton quadcab with a 4.10 gear. With the programmer it will destroy the tires in an instant. Without you'd have to jack the rear up to get it to spin!
Posted By: gss
Re: 99 dodge ram 5.9 gas real world mileage with superchips - 10/14/14 07:45 PM
My 1 owner 99 2500 4x4 QC 3.55 has gotten a best of 15.1. It has the Hughes plenum kit, a high-flow cat, Mobil 1 10W30, and 80 psi in the tires.
You are getting 10+ MPG more than anyone I have heard of. There is a huge MPG thread on the Dodge Talk forum. Nobody is near 20 MPG. How do you explain your astounding gas mileage? Can you post a picture of your trip computer? Thanks
Posted By: HotRodDave
Re: 99 dodge ram 5.9 gas real world mileage with superchips - 10/14/14 07:54 PM
Quote:
My 1 owner 99 2500 4x4 QC 3.55 has gotten a best of 15.1. It has the Hughes plenum kit, a high-flow cat, Mobil 1 10W30, and 80 psi in the tires.
You are getting 10+ MPG more than anyone I have heard of. There is a huge MPG thread on the Dodge Talk forum. Nobody is near 20 MPG. How do you explain your astounding gas mileage? Can you post a picture of your trip computer? Thanks
He gets 20+ by driving 55 mph with the cruise on and level ground, I can do that to for a test or hypermiling or whatever you want to call it but you can not and should not drive that way on a normal basis, unless your time is worth almost nothing and you don't care if you waste everyone elses time.
Posted By: Grizzly
Re: 99 dodge ram 5.9 gas real world mileage with superchips - 10/15/14 02:05 AM
I'm sorry but I'm going to have call bs on this too.
I hypermile the crap out of my '01 360 4x4 1500 w/ 4.10's and the best I can get is 18 at 50 to 55mph. The converter is chopped out, it has a Flowmaster 40 and an electric fan.
Also I would have to see this 3/4 ton "spin the tires" (on dry pavement, I'm assuming) to believe it.
Posted By: NITROUSN
Re: 99 dodge ram 5.9 gas real world mileage with superchips - 10/15/14 02:58 AM
Kenworth Goose you are a funny guy.
Posted By: savoy64
Re: 99 dodge ram 5.9 gas real world mileage with superchips - 10/15/14 03:22 AM
its the metric speedo with imperial gallons-----just being funny...
Posted By: 300by500
Re: 99 dodge ram 5.9 gas real world mileage with superchips - 10/16/14 01:49 AM
I drove my 5300 lb. '84 2WD SRW D350 longbed crew with a stock original LA 360, no overdrive, and 4.10 gears to the Mopar Nationals and got 16.7 MPG driving a steady 63-65 MPH.
I think 3.54s in the Dana 70 would help a bunch....
Posted By: 79powerwagon
Re: 99 dodge ram 5.9 gas real world mileage with superchips - 10/17/14 10:46 AM
My namesake was good for 8mpg, no matter what.
My brand new (at the time) 1990 D150 V6 5 speed got an honest 24mpg day in day out of commuting.
My 97 Dakota V6 auto 2x4 gets just over 18 in commuting.
Tuners are not magic, and if what the OP is saying is true, don't you think it would have become pretty much mainstream knowledge over the last 20 years?
Posted By: kenworth_goose
Re: 99 dodge ram 5.9 gas real world mileage with superchips - 10/17/14 03:48 PM
Quote:
My namesake was good for 8mpg, no matter what.
My brand new (at the time) 1990 D150 V6 5 speed got an honest 24mpg day in day out of commuting.
My 97 Dakota V6 auto 2x4 gets just over 18 in commuting.
Tuners are not magic, and if what the OP is saying is true, don't you think it would have become pretty much mainstream knowledge over the last 20 years?
I didn't say anything magic about the tuner and mileage! However the difference in power is MAGIC!!! I will be doing a video soon, my arm is still not back to full strength so it's hard to do things with it. But when I can I'm going to be some power videos and I'll put them on youtube and post a link on here. I'm going to do something with the stock setting and something with the 87, 91 settings. I can tell you I'm currently doing a city mileage test and it don't look good so far. And I'd have no explanation why there would be such difference in the city and highway mileage. I'll post #'s in a day or two.
Posted By: HotRodDave
Re: 99 dodge ram 5.9 gas real world mileage with superchips - 10/17/14 08:46 PM
Quote:
I'm sorry but I'm going to have call bs on this too.
I hypermile the crap out of my '01 360 4x4 1500 w/ 4.10's and the best I can get is 18 at 50 to 55mph. The converter is chopped out, it has a Flowmaster 40 and an electric fan.
Also I would have to see this 3/4 ton "spin the tires" (on dry pavement, I'm assuming) to believe it.
4.10s are killing you, running around with no load is making the engine fight vacuum to pull the piston down and friction is a lot higher. It is pretty funny to hear some put hyper-miling and 4.10 gears in the same sentence 
Posted By: HotRodDave
Re: 99 dodge ram 5.9 gas real world mileage with superchips - 10/17/14 09:00 PM
A chip should be able to net some significant MPG, I have watched the timing curve on my scanner on a lot of these rigs and base idle timing is frequently around 5* advance, WOT hardly sees over 25* and cruise conditions are lucky to get 30*. They seem to have killed the timing to get reduced NOX emissions. I have seen significant MPG increase from advancing the timing, you have to slot the crank sensor bolt holes and slide the sensor to the pass side of the block, you can get about 2* just doing that, you can get a couple more degrees by making the notch in the bell housing a little bigger in that direction. This will advance the timing through the entire curve. If you slide it enough to get 4* you may need some big washers under the sensors hold down bolts.
You can also use fuel injectors from a 4.6 or 5.4 ford, they atomize the fuel waaaaay better so the burn is faster and more complete. Just find a set of yellow injectors on an old ford or lincold in the JY with the same connectors, those ones work in the 92-99 magnum motors.
Another option is a small duration cam that builds cylinder pressure to speed up the burn.
Another problem is the air gets so hot from the intake belly pan that it retards the timing real bad as IAT goes up. Even with 40* ambiant air temps you will typically see 130-140* air flowing throught the runner. Try one of them lifter valley heat shields, an airgap intake or maybe a ceramic coating on the valley pan, anything to keep the IAT down. I tried a 2000 5.9 ram a couple years ago and in the winter with 10-20* air temp it was showing 120* after driving for a while then put on the complete K&N cold air intake and could squint real hard and see maybe 5* cooler intake temps.
Posted By: WO23Coronet
Re: 99 dodge ram 5.9 gas real world mileage with superchips - 10/18/14 01:40 AM
I also thought that the ignition timing was severely limited in the Magnum motors because of the problem of the belly pan on the intake blowing the gasket. The blown gasket would let oil in causing pinging and detonation. Mopars fix was to severely limit timing instead of fixing the gasket. Trucks already sold with the original decent timing curve received the "death flash" update when it would come into he dealership for service.
Posted By: kenworth_goose
Re: 99 dodge ram 5.9 gas real world mileage with superchips - 10/18/14 03:30 AM
Quote:
Quote:
I'm sorry but I'm going to have call bs on this too.
I hypermile the crap out of my '01 360 4x4 1500 w/ 4.10's and the best I can get is 18 at 50 to 55mph. The converter is chopped out, it has a Flowmaster 40 and an electric fan.
Also I would have to see this 3/4 ton "spin the tires" (on dry pavement, I'm assuming) to believe it.
4.10s are killing you, running around with no load is making the engine fight vacuum to pull the piston down and friction is a lot higher. It is pretty funny to hear some put hyper-miling and 4.10 gears in the same sentence
I couldn't believe it would spin the tires either! but it does, with ease. The reason for the superchips was the death flash. I knew it would advance the timing. I will do the slotting of the crank sensor when my arm will allow. If I set the programmer on the 91 setting It won't ping with 87 in the tank with a bottle of octane booster. So my point is even with the programmer, the timing still isn't where it should be. My truck has always been serviced at the local dealership so we know it has the death flash.
Posted By: 70sixpkrt
Re: 99 dodge ram 5.9 gas real world mileage with superchips - 10/18/14 04:07 AM
My 2000 Ram 1500 4x4 5.9 Quad Cab with 105,000 miles gets 12.5 mpg on the highway and about 9-10 mpg on the street. If I can improve this, it would be wonderful.
Posted By: Grizzly
Re: 99 dodge ram 5.9 gas real world mileage with superchips - 10/18/14 07:26 PM
Quote:
Quote:
I'm sorry but I'm going to have call bs on this too.
I hypermile the crap out of my '01 360 4x4 1500 w/ 4.10's and the best I can get is 18 at 50 to 55mph. The converter is chopped out, it has a Flowmaster 40 and an electric fan.
Also I would have to see this 3/4 ton "spin the tires" (on dry pavement, I'm assuming) to believe it.
4.10s are killing you, running around with no load is making the engine fight vacuum to pull the piston down and friction is a lot higher. It is pretty funny to hear some put hyper-miling and 4.10 gears in the same sentence
At 55 I'm only turning 1700 rpm with 285 rubber. RPM wise, that's as good as it gets for the beer barrel and I'm at the lowest wind resistance that traffic behind me can tolerate.
If I had 3.55's I'd have to wind it up to 65-70 at which point the air really starts to catch a 5600 pound, 6 foot tall truck. Fuel mileage would be worse and it would downshift on anything but level ground.
I had 3.55's in a regular cab SB 2wd with a 318 and it could barely equal the mileage I'm getting with this one and had no off-line power at all. Non Magnum engine however.
After all the Dodges I've owned one thing is always the same: anything over 60 mph and you take at least a 3mpg hit; more like 5mpg.
I don't know how they do it, but the gms' I've owned, maybe 1, 2mpg penalty at the most.
360View has been through this in great detail, and I've taken alot of his suggestions on here over the years. The best one he gave was to keep the throttle blades as far open as you can without downshifting (on hills and such) to keep mileage up. It works: the overhead instant mileage reading backs it up too.
Posted By: moparmandjh
Re: 99 dodge ram 5.9 gas real world mileage with superchips - 10/18/14 10:51 PM
What is the death flash?
Posted By: stumpy
Re: 99 dodge ram 5.9 gas real world mileage with superchips - 10/18/14 10:59 PM
It's when the dealership reflashs your computer to detune the engine to save warranty repairs. I believe it was Dodge mandated.
Posted By: WO23Coronet
Re: 99 dodge ram 5.9 gas real world mileage with superchips - 10/19/14 02:52 AM
Read my previous post
Posted By: moparmandjh
Re: 99 dodge ram 5.9 gas real world mileage with superchips - 10/19/14 02:53 AM
Wow, superchip the only way around it? I would like to have one but can't justify the price.
Posted By: WO23Coronet
Re: 99 dodge ram 5.9 gas real world mileage with superchips - 10/19/14 03:41 AM
I think SCT also offers tuning for Magnums but its at least as expensive. The previously mentioned crank sensor mods would help.
I personally can believe the performance gains offered through a tuner for the Magnums, stock they are total pooches. I've had two of them, a 95 ext cab sb, and a 96 ext cab long box and both were gutless, like 0-60 times in the 12 second range (going by a stop watch), for comparison my 05 HEMI QCSB 4x4 (at least a few hundred lbs heavier) does 0-60 in the 7.8 sec range. The Magnum motor itself is good, look at the performance guys get out of stock engines by simply swapping to a distributor and a carb (talking engine swaps here), IMO it's from a decent timing curve. Also, look how fast the 92/93 Dakotas were with the original timing curve, yes alot lighter but c'mon, it doesn't account for the poor performance from later years
Posted By: d-150
Re: 99 dodge ram 5.9 gas real world mileage with superchips - 10/19/14 04:04 AM
i have sct tuner for a v-10 big difference in power,not much for mpg
Posted By: hulmule
Re: 99 dodge ram 5.9 gas real world mileage with superchips - 10/20/14 01:02 AM
84 Ramcharger 4x4 360 4 barrel. doing the math ... 10.9mpg ahhhhh . Everyone seems to think that the overhead computer is god. do the math for the people who think that the overhead is gospel . on the average its off 2-3 mpg.
Posted By: GO_Fish
Re: 99 dodge ram 5.9 gas real world mileage with superchips - 10/20/14 02:25 AM
Quote:
My 2000 Ram 1500 4x4 5.9 Quad Cab with 105,000 miles gets 12.5 mpg on the highway and about 9-10 mpg on the street. If I can improve this, it would be wonderful.
My 01 1500 4x4 5.9 quad cab gets around 13 mixed driving. Factory tune, no chip. Michelins pumped up hard and gentle throttle. Pushing the throttle hard drops the mileage quickly.
Posted By: HotRodDave
Re: 99 dodge ram 5.9 gas real world mileage with superchips - 10/20/14 08:49 PM
Quote:
84 Ramcharger 4x4 360 4 barrel. doing the math ... 10.9mpg ahhhhh . Everyone seems to think that the overhead computer is god. do the math for the people who think that the overhead is gospel . on the average its off 2-3 mpg.
My experience with them is typically within %5 but a few have been way out of whack by like %20. They seem to be off by consistent percentages not a fixed MPG. FWIW All my mpg numbers I give are hand figured.
Posted By: kenworth_goose
Re: 99 dodge ram 5.9 gas real world mileage with superchips - 10/21/14 02:00 AM
The figures I posted are filling with gas and checking with the miles driven. NOT the lieometer.
Posted By: ChinooK440
Re: 99 dodge ram 5.9 gas real world mileage with superchips - 10/21/14 02:38 PM
25 mpg out of a 360 powered ram....ya that,s real world alright
Some people don,t spell to well and some people are not to good at basic math and some people are just full of BS !
Posted By: kenworth_goose
Re: 99 dodge ram 5.9 gas real world mileage with superchips - 10/21/14 07:01 PM
I really don't care what someone may think! I've done the #'s, I'm very good at math. I can say the city mileage is around 13.5. My next test will be a combination of highway and city. I will do 50 miles of each and then figure the average.
Posted By: gss
Re: 99 dodge ram 5.9 gas real world mileage with superchips - 10/22/14 03:53 AM
Once again, show me a picture of your trip computer.
Posted By: kenworth_goose
Re: 99 dodge ram 5.9 gas real world mileage with superchips - 10/23/14 02:41 AM
Why you want to see the trip lieometer? And it's set on us but I can tell you it lies! BAD! That thing get up over 30mpg sometimes.
My latest in town mileage was a disappointment.
96 miles, 7.05 gallons of gas. 13.6mpg.
There is a really big difference between the highway mileage and the city. I guess it's what it takes to get this 6800lbs moving.