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Custom Dodge Ram Performance Mods - Engine - 5.7 HEMI V8 Discuss modifying your Dodge Ram with Performance Parts and Accessories!
Factory Spec: 5.7-liter HEMI® V8 engine - 390 horsepower, 407 lb-ft of torque.


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  #1  
Old 12-30-2011, 02:22 PM
ptrudel958 ptrudel958 is offline
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Default Best bang for the buck$$$

what is best mods for save MPG with my 5.7 HEMI ?

cold air intake
dual exaust
power programmer

thanks
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Old 12-30-2011, 02:54 PM
GhostR1der GhostR1der is offline
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All 3

But then again you will be in the gas more to hear the new sound and feel the new power.
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Old 12-30-2011, 03:08 PM
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916Timmy 916Timmy is offline
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Programmer first! Biggest gain for the money, but all three together is best
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Old 12-30-2011, 03:41 PM
TNC TNC is offline
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Quote:
Originally Posted by ptrudel958 View Post
what is best mods for save MPG with my 5.7 HEMI ?

cold air intake
dual exaust
power programmer

thanks
Since our '11 and '12 trucks don't have a programmer yet, just go with the CAI and exhaust. You used the term dual exhaust, but it seems you get just about as much bang-for-the-buck with a simple, higher efficiency muffler swap...unless you're going full headers and all. That's what I did with my '12 Express, and I love it.
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Old 12-30-2011, 08:00 PM
ptrudel958 ptrudel958 is offline
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for exhaust have you ever compared different option? What gives the best return for money

the original OEM single line with a good muffler and remove the resonator.

the double line OEM as the sport model with a good muffler.

real double line with a two catalytic converter with a good muffler.

thanks
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Old 12-30-2011, 11:20 PM
pickupman2500 pickupman2500 is offline
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when i worked in a dyno shop different engines react differently to each style. to say which exhaust option works best would be rather expensive. but best for the money would be in order
programmer
exhaust
intake
with that said yes a programmer isnt an option right now.but with the exhaust a full exhaust headers back is the best but really expensive with minor results. so a simple muffler swap would work best. saves wieght and frees up exhaust pressure. but you must be careful to much flow will yield negative results. unless built for it most motors require a certain amount of back pressure.
intakes also provide different results.there are 3 types stock,short air, and cold air. they all do different things.
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Old 12-31-2011, 08:56 AM
ptrudel958 ptrudel958 is offline
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pickupman2500

thank you for your information it is very useful myself
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Old 12-31-2011, 08:59 AM
pickupman2500 pickupman2500 is offline
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no problem it is what i do. been building engines along time.
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Old 12-31-2011, 01:37 PM
CorDog009 CorDog009 is offline
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I've just got the programmer and muffler w/o cats now. Next is going to be LT headers and off-road Y. I'm thinking about ditching the spare tire to remove some weight, and make the truck a tad lighter=more mpg.
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  #10  
Old 12-31-2011, 05:32 PM
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TheSatinPumpkin TheSatinPumpkin is offline
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Quote:
Originally Posted by CorDog009 View Post
I've just got the programmer and muffler w/o cats now. Next is going to be LT headers and off-road Y. I'm thinking about ditching the spare tire to remove some weight, and make the truck a tad lighter=more mpg.
removing the spare is a start but below are some other options to consider
Taken from NA. Bold is what i have done.
1 lighter tires and wheels = can save you 100lbs - Done
2 remove tail gate = can save 69lbs to 110lbs - Done
3 remove spare tire and jack pieces can save 71lbs - Done
4 remove most gas in the gas tank [1/4 tank or less] can save 100lbs to 165lbs
5 remove window washer tank with water = can save 9lbs - Done
6 remove wipers = can save 1 1/2lbs
7 remove stock air intake system. = can save 2lbs - Done
8 run light weight pullys and short belt. save 1-2lbs - Done
9 remove fan and shroud with elec. fan = can save up to 10lbs - Done
10 remove passanger seat and cener seat = can save 80lbs - Done
11 lighter battery = can save 12lbs -
12 shorter exhaust system = can save 12lbs
13 remove any extra water from the radiator tank = can save 1-2lbs
14 remove sound system = can save 4lbs to 100lbs
15 remove sound proof material and carpet = can save up to 60lbs - Done
16 removed the front sway bar = can save 20lbs - Done
17 remove one leaf from each side. = can save up 25lbs - Done
18 remove A/C compressor, condenser, lines can save up to 74lbs - Done
19 remove hood liner = can save up to 3lbs
20 remove stock plastic wiper cowl = can save 3lbs
21 remove factory reciever hitch and bumper = can save up to 100 lbs - Done
22 remove all 4 fender wells = can save up to 15 lbs

add all these up and you got an average somewehere in the neighborhood of 8-900lbs!
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Last edited by TheSatinPumpkin; 12-31-2011 at 05:37 PM.
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