Please help
05-01-2013, 07:08 AM
#11
JK Enthusiast
Join Date: May 2010
Location: San Antonio, Texas
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Well I have an 08 with a 4" lift and 35"s I get 170 miles out of a full tank of gas so any mpg gain will be a big help but I would mostly run it on performance I have a dynomax SS muffler and cold air intake and I have done the viper throttle body mod
Which one is best for my set up
Which one is best for my set up
05-01-2013, 07:35 AM
#12
JK Super Freak
When you say you get 170 miles out of a tank, I have a few questions
1. Did you recalibrate your speedometer when you put 35's on? if not, your speedo is off and so is you odometer. The 170 miles being registered is way off and cannot be used to calculate your mpg whether using the computer or doing it by hand. You need to know what distance you actually traveled.
2. Assuming you did recalibrate your speedo (and I am thinking you did not), how many gallons of gas does each fill up take? If you wheel and have maybe crushed your tank a bit, you might not be getting accurate readings on full and empty.
Keep in mind that a programmer does a few things that are major and a few things that are minor.
Major things
1. recalibrate your speedo to adjust for gear changes and tire size changes
2. adjust your tire pressure sensors for airing down or not running them at all
3. Some allow for Rubi lockers to be used in 4-high
4. Reading and clearing DTC codes
Minor things
1. Performance tunes - yes, I said minor. The performance gains are not big. Yes, maybe notieable but you are shaving maybe 0.001 seconds off your best 0-60 time. The major reason why people feel a difference is through the speedo calibration which puts your shift points (for an auto) back in line to where they should be. If you haven't calibrated your speedo, your shift points are off and most likely making your Jeep feel sluggish.
2. MPG increase - this depends on what tune you run. Use the 93 octane tune and your mpg will probably decrease. Run the gas saver mode and it should increase. By how much? probably not more than 1 to 2 mpg if you are lucky but even then, it's hard to actualy quantify since there are so many variables like what roads you drive, how fast, wind, type of gas (winter vs summer blends), temperature outside, etc... But on average, expect little to no improvement from the actual tunes.
You may think you are seeing improvements, however, they are most liekly due to your speedo being calibrated properly.
I am no knocking tuners. I run the Superchips but I find I use it mostly for the other features. Something you can get much cheaper from an AEV Procal which sells for about $150 new.
As for the best possible performance mod you can do without putting in a new engine? It was said above....Re-gear!!!!!!
1. Did you recalibrate your speedometer when you put 35's on? if not, your speedo is off and so is you odometer. The 170 miles being registered is way off and cannot be used to calculate your mpg whether using the computer or doing it by hand. You need to know what distance you actually traveled.
2. Assuming you did recalibrate your speedo (and I am thinking you did not), how many gallons of gas does each fill up take? If you wheel and have maybe crushed your tank a bit, you might not be getting accurate readings on full and empty.
Keep in mind that a programmer does a few things that are major and a few things that are minor.
Major things
1. recalibrate your speedo to adjust for gear changes and tire size changes
2. adjust your tire pressure sensors for airing down or not running them at all
3. Some allow for Rubi lockers to be used in 4-high
4. Reading and clearing DTC codes
Minor things
1. Performance tunes - yes, I said minor. The performance gains are not big. Yes, maybe notieable but you are shaving maybe 0.001 seconds off your best 0-60 time. The major reason why people feel a difference is through the speedo calibration which puts your shift points (for an auto) back in line to where they should be. If you haven't calibrated your speedo, your shift points are off and most likely making your Jeep feel sluggish.
2. MPG increase - this depends on what tune you run. Use the 93 octane tune and your mpg will probably decrease. Run the gas saver mode and it should increase. By how much? probably not more than 1 to 2 mpg if you are lucky but even then, it's hard to actualy quantify since there are so many variables like what roads you drive, how fast, wind, type of gas (winter vs summer blends), temperature outside, etc... But on average, expect little to no improvement from the actual tunes.
You may think you are seeing improvements, however, they are most liekly due to your speedo being calibrated properly.
I am no knocking tuners. I run the Superchips but I find I use it mostly for the other features. Something you can get much cheaper from an AEV Procal which sells for about $150 new.
As for the best possible performance mod you can do without putting in a new engine? It was said above....Re-gear!!!!!!
05-01-2013, 03:41 PM
#14
JK Enthusiast
Thread Starter
Join Date: Nov 2012
Location: Carolina
Posts: 413
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When you say you get 170 miles out of a tank, I have a few questions
1. Did you recalibrate your speedometer when you put 35's on? if not, your speedo is off and so is you odometer. The 170 miles being registered is way off and cannot be used to calculate your mpg whether using the computer or doing it by hand. You need to know what distance you actually traveled.
2. Assuming you did recalibrate your speedo (and I am thinking you did not), how many gallons of gas does each fill up take? If you wheel and have maybe crushed your tank a bit, you might not be getting accurate readings on full and empty.
Keep in mind that a programmer does a few things that are major and a few things that are minor.
Major things
1. recalibrate your speedo to adjust for gear changes and tire size changes
2. adjust your tire pressure sensors for airing down or not running them at all
3. Some allow for Rubi lockers to be used in 4-high
4. Reading and clearing DTC codes
Minor things
1. Performance tunes - yes, I said minor. The performance gains are not big. Yes, maybe notieable but you are shaving maybe 0.001 seconds off your best 0-60 time. The major reason why people feel a difference is through the speedo calibration which puts your shift points (for an auto) back in line to where they should be. If you haven't calibrated your speedo, your shift points are off and most likely making your Jeep feel sluggish.
2. MPG increase - this depends on what tune you run. Use the 93 octane tune and your mpg will probably decrease. Run the gas saver mode and it should increase. By how much? probably not more than 1 to 2 mpg if you are lucky but even then, it's hard to actualy quantify since there are so many variables like what roads you drive, how fast, wind, type of gas (winter vs summer blends), temperature outside, etc... But on average, expect little to no improvement from the actual tunes.
You may think you are seeing improvements, however, they are most liekly due to your speedo being calibrated properly.
I am no knocking tuners. I run the Superchips but I find I use it mostly for the other features. Something you can get much cheaper from an AEV Procal which sells for about $150 new.
As for the best possible performance mod you can do without putting in a new engine? It was said above....Re-gear!!!!!!
1. Did you recalibrate your speedometer when you put 35's on? if not, your speedo is off and so is you odometer. The 170 miles being registered is way off and cannot be used to calculate your mpg whether using the computer or doing it by hand. You need to know what distance you actually traveled.
2. Assuming you did recalibrate your speedo (and I am thinking you did not), how many gallons of gas does each fill up take? If you wheel and have maybe crushed your tank a bit, you might not be getting accurate readings on full and empty.
Keep in mind that a programmer does a few things that are major and a few things that are minor.
Major things
1. recalibrate your speedo to adjust for gear changes and tire size changes
2. adjust your tire pressure sensors for airing down or not running them at all
3. Some allow for Rubi lockers to be used in 4-high
4. Reading and clearing DTC codes
Minor things
1. Performance tunes - yes, I said minor. The performance gains are not big. Yes, maybe notieable but you are shaving maybe 0.001 seconds off your best 0-60 time. The major reason why people feel a difference is through the speedo calibration which puts your shift points (for an auto) back in line to where they should be. If you haven't calibrated your speedo, your shift points are off and most likely making your Jeep feel sluggish.
2. MPG increase - this depends on what tune you run. Use the 93 octane tune and your mpg will probably decrease. Run the gas saver mode and it should increase. By how much? probably not more than 1 to 2 mpg if you are lucky but even then, it's hard to actualy quantify since there are so many variables like what roads you drive, how fast, wind, type of gas (winter vs summer blends), temperature outside, etc... But on average, expect little to no improvement from the actual tunes.
You may think you are seeing improvements, however, they are most liekly due to your speedo being calibrated properly.
I am no knocking tuners. I run the Superchips but I find I use it mostly for the other features. Something you can get much cheaper from an AEV Procal which sells for about $150 new.
As for the best possible performance mod you can do without putting in a new engine? It was said above....Re-gear!!!!!!