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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 06-19-2010, 11:12 AM
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Default Help Better GAS Mileage

Hi, Im new here and just bought my first truck ever and have a question about after market Intake systems I just bought a 2010 Ram 1500 Hemi SLT Crew cab 2WD and want to get a little more Gas mileage and was told to get a KN Intake system or some other good intake system and I am on a budget new truck and all do you have any advice on how to get that better gas mileage don't get me wrong I know it's truck and I am seeing on the hwy around 19.8 mpg at 65 mph on cruise control but I think it could do better any help would be great thanks.
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Old 06-19-2010, 11:49 AM
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damm ur lucky man 19.8 mpg i getting 16 on a good day on highway. for gas increase i heard. i said i heard idk if its true but there a intake someone had that they got 1 mpg more. but i yet to see it.
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Old 06-19-2010, 11:52 AM
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Welcome to the forum! I'd definitely recommend an intake, but to maximize your efficiency look at getting a programmer and a free-flowing exhaust along with the intake
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Old 06-19-2010, 12:48 PM
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What he ^^^^ said. All those components work together to improve efficiency.
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Old 06-19-2010, 01:04 PM
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I agree to maximize mileage gains go CAI plus tuner and exhaust. If your truck has the factory duals you're 1/3 of the way there. You can swap out the muffler if you want more noise but you got large OD stainless tubing already. If you don't have the factory duals a swap out should be in your future plans.

While I haven't seen any definitive figures on Cold Air Intakes vs. under the hood (hot air) intakes most everyone here who've added one has gone CAI. Many different brands and just as many different opinions on what's best. You get what makes you happy and fits your budget.

After the above get the Diablo. Search through the forum and you can find several different postings showing dyno numbers of before and after putting in a Predator tune.

Now the con - The bad thing about a tuner, CAI and freed up exhaust is that you tend to play more on that right hand pedal and there goes your mileage gains. And let me assure you that unless you are THE most disciplined person on earth you will play. Nothing like hearing the intake sucking major air and the exhaust rumbling while that tuner helps the kick in the pants. Heck, I'm almost sixty and I'm still like a kid at Christmas every time I crank up. A smile hits my face and my foot hits the gas. Gotta love it!
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Old 06-19-2010, 02:09 PM
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Trust me, 19.8 on the highway is great. Most I've seen so far is 20.0. I'm told you will get some improvement with a CAI, performance muffler and a tune. From all the reading I have done you need to do all three.
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Old 06-19-2010, 02:15 PM
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Your driving style is the best way to ensure you get better mileage.

You can buy a CAI ($200+), a programmer ($300), and a new muffler ($100+ installed) and you might see 1-2 mpg better.

Lets say you are getting 20 mpg now and all those mods give 2 mpg better for 22 mpg. The lower end of the scale for all those mods is about $600. I know there are the DIY intakes and Ebay specials but you get what you pay for and the same with exhaust.

Gas prices vary across the country but we'll use $3/gallon since you are in CA. That means it costs you 15 cents per mile assuming 20 mpg and $3 a gallon. At 22 mpg you are paying 13.6 cents per mile. Assming you only paid $600 for your mods to get that 1.4cent saving per mile it would take you 42,857 miles before you recouped your initial investment.

My point is that if you are buying these for the sole purpose of fule mileage it is probably not worth it....BUT if you want to buy all those upgrades because you want more hp and a better sounding exhaust then by all means mod away. The majority of us on here have the modding sickness and once you start there is no cure!!
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Old 06-19-2010, 02:18 PM
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Well said "gabrieldy" !!!
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Old 06-19-2010, 03:32 PM
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I want to thank every one for there honest input and all the good information on the different mods and the pro and cons I guess will see what the future holds for my truck. Thanks to all and Happy Fathers Day
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Old 06-19-2010, 04:31 PM
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You will see better mileage too, when your truck hits the engine break in point, some where around 5,000 miles
My average mileage is 15.8 highway, but, my truck also weighs more than most, at 6300 pounds
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