Superchips 6.0 Microtuner Thread
Elder User
Joined: Feb 2005
Posts: 931
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From: Cool, CA
Customz - welcome to my mileage world 
That is my complaint as well, I have NEVER gotten more than 14.8 or 15 mpg in this truck even empty for 250 miles on a flat freeway with no load and cruise control the whole way (65) late at night. I've just learned to accept it - still better than teh 10 - 11 I got with my 2000 F150.
That is my complaint as well, I have NEVER gotten more than 14.8 or 15 mpg in this truck even empty for 250 miles on a flat freeway with no load and cruise control the whole way (65) late at night. I've just learned to accept it - still better than teh 10 - 11 I got with my 2000 F150.
Postmaster
Joined: Sep 2004
Posts: 2,508
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From: Utopia
I am not complaining, nor am I searching for mileage from a 3/4 ton CC 4x4. I am just extremely curious about the variations from 6.0 to 6.0.
In HP mode, based on the torque curves provided by SCMT, minus the driveline losses, it looks like 505 HP and 785 TQ at the fly wheel.
In comparison, I've driven a 1994 Nissan 4-banger, 4x4, single cab, manual that got 14-15mpg and couldn't get out of its own way!
In HP mode, based on the torque curves provided by SCMT, minus the driveline losses, it looks like 505 HP and 785 TQ at the fly wheel.
In comparison, I've driven a 1994 Nissan 4-banger, 4x4, single cab, manual that got 14-15mpg and couldn't get out of its own way!
Postmaster
Joined: Sep 2004
Posts: 2,508
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From: Utopia
[QUOTE=Customz]I am not complaining, nor am I searching for mileage from a 3/4 ton CC 4x4. I am just extremely curious about the variations from 6.0 to 6.0.
In HP mode, based on the torque curves provided by SCMT, minus the driveline losses, it looks like 505 HP and 785 TQ at the fly wheel. If you use the power, your going to use the fuel!
In comparison, I've driven a 1994 Nissan 4-banger, 4x4, single cab, manual that got 14-15mpg and couldn't get out of its own way!
In HP mode, based on the torque curves provided by SCMT, minus the driveline losses, it looks like 505 HP and 785 TQ at the fly wheel. If you use the power, your going to use the fuel!
In comparison, I've driven a 1994 Nissan 4-banger, 4x4, single cab, manual that got 14-15mpg and couldn't get out of its own way!
Elder User
Joined: Feb 2005
Posts: 931
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From: Cool, CA
Couldn't agre with you more - use the power and use the gas. Maybe complaint was the wrong word - I should have used confused or baffled. I'm not expecting high mileage out of a 3/4 truck especially one that has an HP tune on it but I still can't get over the variations reported by other users on this site. Seems like I see between 11 - 22 mpg with the 6.0l reported here. In my case the mileage I get is what I have pretty much whether I use the SCMT or not. So if I don't get any worse mileage by leaving it on HP tune all the time, why not just leave it there?
Senior User
Joined: Oct 2004
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Originally Posted by MRKnight
Couldn't agre with you more - use the power and use the gas. Maybe complaint was the wrong word - I should have used confused or baffled. I'm not expecting high mileage out of a 3/4 truck especially one that has an HP tune on it but I still can't get over the variations reported by other users on this site. Seems like I see between 11 - 22 mpg with the 6.0l reported here. In my case the mileage I get is what I have pretty much whether I use the SCMT or not. So if I don't get any worse mileage by leaving it on HP tune all the time, why not just leave it there?
Just a thought...
Steve
Posting Guru
Joined: Feb 2004
Posts: 1,584
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From: Lake Mary, FL
These are just some of the variables that directly and indirectly affect fuel mileage (and whether or not or how much you will get a gain using a tuning device):
Gear ratio, tire size, driver habits, stock calibrations, tire pressure, whether or not it still has pilot injection, transmission type, trans gear ratio, altitude, modifications, fuel quality, fuel additives, vehicle weight, humidity, injector timing, vehicle height-frontal surface area (aerodynamics), oil temp, ambient temp, coolant temp, baro pressure, etc...
Whooo! Ric Flair sez that brick in the wind has a lot of variables!
Gear ratio, tire size, driver habits, stock calibrations, tire pressure, whether or not it still has pilot injection, transmission type, trans gear ratio, altitude, modifications, fuel quality, fuel additives, vehicle weight, humidity, injector timing, vehicle height-frontal surface area (aerodynamics), oil temp, ambient temp, coolant temp, baro pressure, etc...
Whooo! Ric Flair sez that brick in the wind has a lot of variables!
Last edited by Vic_Ferrari; May 25, 2005 at 12:54 PM.
Freshman User
Joined: Feb 2005
Posts: 32
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Just one more question
Ok, I'm almost ready to buy a Superchip to increase my mileage, but have one last concern.
What is the safest exhaust temps? cuz it seems that the superchips all increase it by quite a bit. Is there a long term effect that I should be worried about?
I'm pretty excited about the chip, the miss not so much. We're going to travel from CA to FL this summer and I'd like to have it in before then.
Any help is appreciatted.
What is the safest exhaust temps? cuz it seems that the superchips all increase it by quite a bit. Is there a long term effect that I should be worried about?
I'm pretty excited about the chip, the miss not so much. We're going to travel from CA to FL this summer and I'd like to have it in before then.
Any help is appreciatted.
FTE Leadership Emeritus
Joined: Jan 2003
Posts: 161,999
Likes: 75
From: 3rd Rock
Any tuner will increase the EGT.... SC increases the least!
Are you buying the Tuner from http://www.motorhaven.com/home.php
GREAT sale right now
Are you buying the Tuner from http://www.motorhaven.com/home.php
GREAT sale right now
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Freshman User
Joined: Sep 2004
Posts: 38
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the problem with the tuner is the restraint you have to have to not ruin you milage. increased milage is NOT going to happen. around town to use the 1800 to 2100 rpm range you have to practically gunn it from light to light, ruining mileage. good luck but your foot will be the milage killer. it has been so far with me.
i have the performance mode with no mods. no towing or hard driving so i'm not too worried about egt's.
i have the performance mode with no mods. no towing or hard driving so i'm not too worried about egt's.
Posting Guru
Joined: Feb 2004
Posts: 1,584
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From: Lake Mary, FL
Originally Posted by dahitman
the problem with the tuner is the restraint you have to have to not ruin you milage. increased milage is NOT going to happen.
Some people get mileage gains, wven when getting throttle happy....as long as it isn't ALL THE TIME.
It also depends on how your mileage was stock. Trucks that get great mileage stock close the gap between stock and modified mileage.
Cargo Master
Joined: Jun 2003
Posts: 2,203
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From: Carlsbad, California
My peak EGTs might be just a little higher than stock in tow safe, can't say for sure because I don't drive in stock mode anymore 
But the average towing EGT is probably a bit lower. It seems that the tuning along with the shift profile allows the engine to run in a lower gear a bit longer before shifting to the next gear and I think that this lowers EGT and strain on the motor.
In the Economy and HP tunes the maximum EGTs are higher than stock but not all that much. I think I saw top temps in stock tune of around 1070 or so on my test hill. In Economy tune I've seen 1150 and in HP tune I've seen around 1230 or something like that.
Well within the safe range and to be expected given that there's more fuel being squirted into the motor.
But the average towing EGT is probably a bit lower. It seems that the tuning along with the shift profile allows the engine to run in a lower gear a bit longer before shifting to the next gear and I think that this lowers EGT and strain on the motor.
In the Economy and HP tunes the maximum EGTs are higher than stock but not all that much. I think I saw top temps in stock tune of around 1070 or so on my test hill. In Economy tune I've seen 1150 and in HP tune I've seen around 1230 or something like that.
Well within the safe range and to be expected given that there's more fuel being squirted into the motor.
Originally Posted by amukia
Ok, so will the increased EGT temps mess my EXC up in the long run? Or is this the risk we take?
So do your RPM's rise or go down or stay the same? Anyone know?
Thanks for your help guys
So do your RPM's rise or go down or stay the same? Anyone know?
Thanks for your help guys
