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1994.5 - 1997 7.3L Power Stroke Diesel  

Programer,Intercooler,and MPG

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Old Nov 24, 2011 | 12:37 PM
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Programer,Intercooler,and MPG

My truck is a 1995 7.3 2wd 4.10 and auto. Its all stock except for a 4 inch pipe. the truck has 160k on it and ive owned it for 12 years. It has all the power i need for a dialy driver. thats the problem i drive about 50 miles a day. i am looking to get a little more MPG. Does anyone have rock solid proof that a tuner or chip would help. also would a intercooler help also if so what is the ceapest way to do that? i know a gear change would help. but the trans has never been rebuilt and thats my big concern. i do pull a couple different fifth wheel trailer at times. i currently get 16-17 average. have not check the winter blend this year yet. jackk
 
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Old Nov 24, 2011 | 12:57 PM
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Put a 6637 intake on it to let it get some air
With a chip you may see 1-2 mpg at most.
A IC will help with EGT's not mileage
 
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Old Nov 24, 2011 | 05:19 PM
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My old 97 4x4 f250 zf5 got better with a chip if I kept my foot out of it
My 96 f250 2wd auto is getting worse and worse but it's got 346k miles on stock sicks
 
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Old Nov 24, 2011 | 11:43 PM
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I'd upgrade to a 6637 intake and a 3" downpipe. Those two mods along with your 4" exhaust will get you the best MPG's.

Plus, either get rid of your cat or gut it...
 
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Old Nov 25, 2011 | 01:11 AM
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i think my best was 17mpg my 97 auto has an IC 3in dp 6637 intake and i only get about 17mpg
 
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Old Nov 25, 2011 | 09:07 AM
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I average 19 at almost exclusively 70 mph with the mods in my sig. I have 3.55s but with a 5 speed that puts my final rpms about the same as your auto with 4.10s. My truck liked the new air filter, downpipe, and proper fuel pressure the most. Gutting my cat made a noticeable difference too. Then after that I have small but noticeable increases with tuning, injectors, etc. I expect after guages and proper stage I tuning to see another increase.
 
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Old Nov 25, 2011 | 12:50 PM
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Ive got the 6637, 3 in DP, guted cat and muffler, no leaks and i only get 12...so idk what my problem is.
 
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Old Nov 25, 2011 | 12:58 PM
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Your right foot.
 
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Old Nov 25, 2011 | 01:09 PM
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Well, i do love the sound of my exhaust. Is that enough to cause that much of a drop lol?
 
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Old Nov 25, 2011 | 01:50 PM
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When I putty stack on mine was down to 10&12
 
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Old Nov 25, 2011 | 02:54 PM
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Great, i just ordered all the piping for my stacks, so looks like my mileage will suffer a bit longer.
 
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Old Nov 25, 2011 | 05:44 PM
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Yep. My mpg is back up to 18 but my mileage will drop again for awhile in a couple weeks when I do my stageI's, e fuel, and IC
 
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Old Nov 25, 2011 | 10:03 PM
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Yeah, my mileage dropped when I got my Stage I's. It wasn't great when I had stacks either...

My problem now is that since it started raining I can't take off from a stop quickly at all and I can't pass anyone on the highway because my truck won't move... WIsh I had posi. lol
 
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