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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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  #31  
Old 02-11-2011, 11:10 AM
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BLKSVT BLKSVT is offline
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Until you have lived through a blown motor from not dialing in with a wideband/AF gauge and trying to not seek getting a dyno tune....because you feel you can do it, because you've read soooooo much on the internet about how easy it really is. Well, then I say that 15k motor may prove to be an expensive lesson to learn.
I just don't understand why y'all wouldn't just buy a flex fuel vehicle to begin with?

But good luck and I hope it works for everyone trying to do it, my .02 of input is just that, I have no dog in this fight and can promise you I wouldn't be changing mine over to that even if gas gets to $7 a gallon.
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  #32  
Old 02-11-2011, 03:00 PM
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I agree that if you are gonna take things to the limit as in a blown engine, ya better be sure what you are doing, however, I don't corrolate the restraints of that particular mod with running E-30 in a modern non-ffv vehicle.

I'd love to have Dodge offer a FFV version of the 5.7. Looked twice at the 4.7 because of this capability, but, as has been the case in the last 10 years, I've always opted for the highest HP N/A engine available from 'the MFG of choice' in a RCSB truck. (N/A due to pricepoint, but them ol' Lightnings sure are sweet!)

Not sure how it will all play out,,, I have months worth of testing to do in different climates and conditions before I can definately say E-30 is or isn't right for me, my vehicle, my conditions, etc etc etc. If in the long run it proves to be a flop, I won't move on to E-85. (Results thus far have been very promising, but until I get 'months' worth of testing in w/different blend ratios and different temps, I can't swear to it as a cold, hard FACT)

Would still like to hear any results, both short and long term, from the OP.
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  #33  
Old 10-11-2013, 07:21 AM
Gottarpon Gottarpon is offline
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Thought I would raise this back up. More and More E85 everywhere and wondering is more 5.7s have made the switch.
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  #34  
Old 10-21-2013, 02:44 AM
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I just finished reading the section of my 2013 owners manual on E-85 use in the 5.7 Hemi Engine. It indicated that the use of E-85 could result in damage and void the warranty. Do not use gasolines containing Methanol or E-85 Ethanol. Use of these blends may result in starting and driveability problems and may damage critical fuel system components.

Owners Manual Page 523:

Do not use gasolines containing Methanol or E-85
Ethanol.

Use of these blends may result in starting
and driveability problems and may damage critical
fuel system components.
Problems that result from using methanol/gasoline or E-85
ethanol blends are not the responsibility of the manufacturer.
While MTBE is an oxygenate made from methanol, it
does not have the negative effects of methanol.
E-85 Usage In Non-Flex Fuel Vehicles
Non-FFV vehicles are compatible with gasoline containing
10% ethanol (E10). Gasoline with higher ethanol
content may void the vehicle’s warranty.

If a Non-FFV vehicle is inadvertently fueled with E-85
fuel, the engine will have some or all of these symptoms:
• operate in a lean mode
• OBD II “Malfunction Indicator Light” on
• poor engine performance
• poor cold start and cold driveability
• increased risk for fuel system component corrosion
To fix a Non-FFV vehicle inadvertently fueled once with
E-85 perform the following:
• drain the fuel tank (see your authorized dealer)
• change the engine oil and oil filter
• disconnect and reconnect the battery to reset the
engine controller memory
More extensive repairs will be required for prolonged
exposure to E-85 fuel.
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Last edited by Silvercreek; 10-21-2013 at 02:48 AM.
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  #35  
Old 07-01-2016, 08:58 PM
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I'm going to bring this up again. Basically e-85 is now cheap it +100 octane. And it's almost 1$ per gallon cheaper in Illinois. So who is running an e85 tune. All it does is burn super lean causing the sensors to go crazy trying to adjust everything. A good tune and it should be like race gas
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  #36  
Old 07-04-2016, 01:49 AM
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Quote:
Originally Posted by gysnst2 View Post
I'm going to bring this up again. Basically e-85 is now cheap it +100 octane. And it's almost 1$ per gallon cheaper in Illinois. So who is running an e85 tune. All it does is burn super lean causing the sensors to go crazy trying to adjust everything. A good tune and it should be like race gas
An update to this would be nice. Anyone have any further information?
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  #37  
Old 07-05-2016, 03:06 PM
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Quote:
Originally Posted by ram71351 View Post
An update to this would be nice. Anyone have any further information?
Well my .02$ is that E85 IS like 110 octane race gas that when you have a 2nd tune on standby to use with it you can get mad power. All the fuel system items in your 4th gen trucks WILL have seals that resist ethanol because of the 10% allowed rule.

Only thing you will really (possibly at that) need is slightly larger injectors to see the full benefit.
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