Which tuner for best MPG

[Hounddog]

Here's the criteria:

1. want the best bang for the buck

2. MPG improvement is number one priority both unloaded and loaded. HP/TQ are not really a factor since everything I'm towing now is no sweat for the truck.

3. Easy to use/set up with minimal chance of warranty issues.



Any help based on personal knowledge and use of a particular tuner is desired.



Thanks.

 

[JDiepstra]

I've never had a Smarty but they claim to be the only programmer that is truely undetectable. With your new 6. 7 and the all the issues I have read about them you are going to want to hold on to your warranty! Most dealers seem to enjoy voiding warranties, and maybe even get bonuses for doing so, so I'd be very cautious!

 

[HWork]

Does smarty have one for the 6. 7?

 

[Bob4x4]

Untill Dodge gets a handle on the 6. 7 keep it stock if you are looking to keep your warranty. Dodge is trying to contain their warranty cost. Your mods are a free ticket for them :-laf



Bob

 

[jelag]

Do not expect a mileage improvement that will justify the cost of the equipment..... Remember that MPG is a math formula based on weight, HP, wind resistance, driveline resistance and acceleration. . Its Science... ...

With a chassis dyno you can predict all of the above and flow chart MPG... . changing weight, wind resistance and acceleration will effect this formula the most, any other changes very little...

As an example my wife drives 10-15 mph slower than I do and accelerates in twice the time (slower) and she always get 12-15% better fuel economy driving the same vehicle...

I hope that those who have added performance enhancements to their vehicles will come forward and tell you the extra HP is a blast and its great pulling a trailer... . but the honest truth is that you won't see more than 1-2% increase in mileage if you can keep your foot off the throttle with all that extra HP... ... .

If you find a vendor offering great MPG increases ask him to offer you a money back deal based on a Dyno Run... .

 

[Bob4x4]

Do not expect a mileage improvement that will justify the cost of the equipment..... Remember that MPG is a math formula based on weight, HP, wind resistance, driveline resistance and acceleration. . Its Science... ...



With a chassis dyno you can predict all of the above and flow chart MPG... . changing weight, wind resistance and acceleration will effect this formula the most, any other changes very little...



As an example my wife drives 10-15 mph slower than I do and accelerates in twice the time (slower) and she always get 12-15% better fuel economy driving the same vehicle...



I hope that those who have added performance enhancements to their vehicles will come forward and tell you the extra HP is a blast and its great pulling a trailer... . but the honest truth is that you won't see more than 1-2% increase in mileage if you can keep your foot off the throttle with all that extra HP... ... .



If you find a vendor offering great MPG increases ask him to offer you a money back deal based on a Dyno Run... .

Pretty good way of spelling it out,but you left out volumetric efficency. That is where we can make improvements to get the power and keep much of the mileage. Those changes are expensive for the amount of gain but fun. On the 6. 7 they are also illegal.



Bob

 

[CATCRACKER]

ditto on the warranty

 

[Hounddog]

all thanks for the replies, the warranty is the big issue for me...

 

[DIESELMAN]

As an example my wife drives 10-15 mph slower than I do and accelerates in twice the time (slower) and she always get 12-15% better fuel economy driving the same vehicle... ... .

How in the world did you teach her to do that??? My wife is Binary, Full Throttle(1), Slam Brakes, No Throttle(0), there is no middle ground... .



DM