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Car Forum / Ford / Ford Trucks / September 20052002 Diesel with Superchip programmer
The truck is an automatic F-350. Has a Superchips tuner. Been told the truck will get better mileage on Stage I than with the stock setup. Is this true? Al > The truck is an automatic F-350. Has a Superchips tuner. Been told the truck > will get better mileage on Stage I than with the stock setup. Is this true? > > Al Once you get over the kick of having all that extra power, you'll get better mileage...i still like to put my foot into it sometimes...like to beat vettes and porches off the line at traffic lights...still a teenager at heart i guess. Watch the EGR temps though, especially if you're gonna haul or tow. Get a big, fat exhaust system and a low restriction air filter system to go with it and you'll be even happier (power and mileage) and less worried about EGR temps...an EGR gauge wouldn't hurt either. Highly unlikely unless you change your driving habits. Accelerate slower, drive slower, slow down slower... But if you did that, you would probably see the same improvement even without the tuner. > The truck is an automatic F-350. Has a Superchips tuner. Been told the > truck will get better mileage on Stage I than with the stock setup. Is > this true? > > Al With all due respect, your response reads as though you don't have a tuner and little or no practical experience. Changing the engine and transmission parameters by using a tuner does provide better fuel economy, especially when towing. Keeping in mind that once the adrenaline rush from the performance gain (i.e., being able to accelerate like a rocket) wears off the fuel economy gains are realized. More at issue are: (1) getting better air flow (intake and exhaust) to help both economy and performance, as well as EGR temps and (2) what's the ROI when you factor in the cost of the tuner and other mods to the fuel saving cost. If you don't do alot of driving and/or towing it may take a long time to realize the ROI. I can honestly say, from practical experience, that most performance mods on a diesel engine also result in better fuel economy...the same is not true for gasoline engines. > Highly unlikely unless you change your driving habits. > Accelerate slower, drive slower, slow down slower... [quoted text clipped - 6 lines] >> >>Al It's not my truck. We went about 150 miles yesterday with an empty trailer to pick up a car. Went there set at stage 1, came home stock, but with about 2000 pounds more weight. Got better mileage on the way up, but that would be expected. I was just curious. Al > With all due respect, your response reads as though you don't have a tuner > and little or no practical experience. Changing the engine and [quoted text clipped - 27 lines] >>> >>>Al >It’s not my truck. We went about 150 miles yesterday with an >empty trailer [quoted text clipped - 3 lines] >would be >expected. I was just curious. Lots of varibles here too because you could have had a slight head wind going and tail wind coming back too. You need to average it over the same run a few times to get a real world average/change. Even with my gasser I sometime get better coming back than going or the other way around with no changes. I applogize Big Al, my response was meant to refute the reply of 351CJ and not directly reply to your original question. Again, I appologize for the confusion. I still stand by my post regardless of the subsequent posts by SnoMan. > It's not my truck. We went about 150 miles yesterday with an empty trailer > to pick up a car. Went there set at stage 1, came home stock, but with about [quoted text clipped - 34 lines] >>>> >>>>Al >With all due respect, your response reads as though you don’t >have a tuner and little or no practical experience. Changing the >engine and transmission parameters by using a tuner does provide >better fuel economy, especially when towing. This can be true but the way they do this is by changing the timing of the fuel injection and timing is VERY critical for emissions control on a diesel. If it were possible to get better MPG and make good emissions, it would have came that way because auto makers are not stupid. I am not say to no do it as it is up to you but it will increase emissions and like someone else said, you need to watch EGT closely if you "chip it" a lot. >>With all due respect, your response reads as though you don’t >>have a tuner and little or no practical experience. Changing the [quoted text clipped - 8 lines] > increase emissions and like someone else said, you need to watch EGT > closely if you "chip it" a lot. It's not a matter of being stupid, it's a matter of satisfying the average customer, meeting the minimum federal requirements, and making a profit. I offer the following... It's counter intuitive and defies the laws of physics that increasing fuel economy also increases emissions. By definition emissions are the by product of the combustion process comprised of the gases and particulates. It's the inefficient engine that produces more emissions, not the efficient (i.e. better fuel economy) one. Additionally, tuners do much more than changing the injection timing. They fiddle with many engine and transmission parameters. It's the proper fiddling that produces the gains...one perceived downside is the stronger shifting...some folks don't like that, but it's actually better for the trans and the fuel economy. Big Al, What engine do you have? I have a 2000 with the 7.3L Power Stroke and it has the Superchips tuner. I know from personal experience that I get an additional 2-3 mpg's with the tuning installed, as long as I drive the same way. I drive very conservatively, which also helps with fuel consumption. The above mpg increase applies to towing or not. However, I am towing a very heavy trailer near the max of the F-550 stock ratings. If I am towing on perfectly flat roads, I leave the tuner in. If I encounter even moderately large hills, the tuner will make the engine overheat much quicker, so I generally return the truck to stock before towing. I have EGT and transmission gauges to keep an eye on the temperatures. By the way, my truck has a 4.88 rear differential. Charlie http://ChanginGears.com It's not my truck:) It has the 7.3L engine, 4.11 gears. Thanks for the info. Al > Big Al, > [quoted text clipped - 15 lines] > Charlie > http://ChanginGears.com |
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