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heykenny731
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Post subject: hmmm $400 bucks and worse mileage  Posted: Tue Dec 02, 2008 1:29 am |
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Joined: Mon Dec 01, 2008 9:17 pm
Posts: 4
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Well... got my 3815.. downloaded all the updates.. programmed my 08 Dodge Ram 1500.. went out for a day of mileage testing.. same road, same distance, same speed 5 trips
trip 1 and 2 stock truck 23.8 mpg
trip 3 ,"performance tune" 22.6
trip 4 , "mileage extreme" setting.. 20.2 !!!
trip 5, "towing" setting.. 22.1..
So! I like the trans feel with the programmer, I like I can turn MDS if it's bugging me bad enough.. It did feel a touch stronger wide open throttle and high RPM.. but was no stronger at reasonable throttle and rpm... and so there I am.. out $400 bucks and getting less mpg...... Hmmm .. not thrilled 
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RON @ SUPERCHIPS
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Post subject: Posted: Tue Dec 02, 2008 9:12 am |
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Joined: Tue Jul 25, 2006 9:41 am
Posts: 18240
Location: SUPERCHIPS
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Tell us how many miles you ran on each mode.
Also, what grade of fuel have you been running?
Are you relying on the overhead Esti-meter?
One would really need to average their mileage over a few tanks of fuel.
Removing the tuning and changing levels is on accurate for overall MPG gains.
Whenever you reprogram the computer on the truck their is a relearning time for your driving habits typically 50-75miles.
Ron
_________________ RRAPP@SUPERCHIPS.COM 1-888-227-2447 8-5 EST. Email me directly if your having ANY trouble with the forum. Not able to LOGIN, email me with your Username that you registered with.
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heykenny731
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Post subject: Posted: Wed Dec 03, 2008 1:30 pm |
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Joined: Mon Dec 01, 2008 9:17 pm
Posts: 4
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RON @ SUPERCHIPS wrote: Tell us how many miles you ran on each mode. .... my test loop is not quite 22 miles
Also, what grade of fuel have you been running?... 92 in all cases, even when it was stock
Are you relying on the overhead Esti-meter? yes
One would really need to average their mileage over a few tanks of fuel. ....The fact that I've been able to get consistent readings over and over when the truck was stock leads me to believe my method is ok for testing mods
Removing the tuning and changing levels is on accurate for overall MPG gains. ... uhhh what?
Whenever you reprogram the computer on the truck their is a relearning time for your driving habits typically 50-75miles.
well , that may be... but it either has improved programming or it doesn't... one would think I would notice a change in the 40 some odd miles it takes to do my test loop
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heykenny731
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Post subject: Posted: Wed Dec 03, 2008 1:34 pm |
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Joined: Mon Dec 01, 2008 9:17 pm
Posts: 4
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just for the heck of it I will drive it for a few days and see if my bad attitude cools off before I jump the gun and request a return autho
maybe the ability to turn off MDS is worth the money.. I'll see what my feelings are in a few days
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RON @ SUPERCHIPS
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Post subject: Posted: Wed Dec 03, 2008 1:53 pm |
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Joined: Tue Jul 25, 2006 9:41 am
Posts: 18240
Location: SUPERCHIPS
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One would have to drive the truck for a few tanks full of fuel to get a good average with all of the different conditions.
In my opinion you would need to do more thorough testing.
Ron
_________________ RRAPP@SUPERCHIPS.COM 1-888-227-2447 8-5 EST. Email me directly if your having ANY trouble with the forum. Not able to LOGIN, email me with your Username that you registered with.
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heykenny731
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Post subject: Posted: Wed Dec 03, 2008 5:17 pm |
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Joined: Mon Dec 01, 2008 9:17 pm
Posts: 4
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RON @ SUPERCHIPS wrote: One would have to drive the truck for a few tanks full of fuel to get a good average with all of the different conditions ..
that's the thing... there wasn't different conditions.. same day, same fuel, same road, same distance, same speed same same same
if i couldn't reproduce the results on the stock settings time after time, I would think there was a flaw in the method... but that's just it ... it's consistent... runs one way stock... gets one mileage stock... gets worse with the tuner... consistently
but I will give it a few days, to see if my mood improves
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RON @ SUPERCHIPS
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Post subject: Posted: Thu Dec 04, 2008 9:30 am |
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Joined: Tue Jul 25, 2006 9:41 am
Posts: 18240
Location: SUPERCHIPS
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Let us know....
Ron
_________________ RRAPP@SUPERCHIPS.COM 1-888-227-2447 8-5 EST. Email me directly if your having ANY trouble with the forum. Not able to LOGIN, email me with your Username that you registered with.
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soupkids
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Post subject: Posted: Sat Dec 06, 2008 12:05 am |
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Joined: Sun Sep 09, 2007 10:54 pm
Posts: 94
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I m,anaged to gain 2-4 mpg depending on conditions.
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bighemitex
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Post subject: Re: hmmm $400 bucks and worse mileage Posted: Mon Oct 05, 2009 2:35 pm |
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Joined: Wed Jan 14, 2009 12:49 pm
Posts: 125
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i'm sure by now you have probably seen gains because you let the tune mature on your pcm, you can't just go switching tunes multiple times and expect the pcm to respond well. i think the tunes on my truck mature and settle after around 400 miles and that's when you start seeing gains, i think they initial gain alot of people feel when installing a tune is actually the pcm being reset by the tuning process after a while the tune takes, then settles and you see the full benefit.
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