E85?

[gone_fishing]

you can run E85 safely but you will not have more torque and horsepower then pure gas on our trucks.

 

The new 5.3 L83 motors are SAE certified 380 HP/416 lb-ft of torque on E85. This is an increase of 25 HP and 33 lb-ft of torque over gasoline.

http://gmauthority.com/blog/gm/gm-engines/l83/

[kstruckcountry]

Hate to bust your bubble bud, but the motors know what fuel you're putting in and will modify how they run based on it... You will get more power on e85, guarantee it.

 

That said, I hate ethanol simply because of what it is, an environmentally devastating fuel pushed into mainstream existence by farm lobbies and corrupt politicians and "scientists".

[02suburbanZ71]

Hate to bust your bubble bud, but the motors know what fuel you're putting in and will modify how they run based on it... You will get more power on e85, guarantee it.

 

That said, I hate ethanol simply because of what it is, an environmentally devastating fuel pushed into mainstream existence by farm lobbies and corrupt politicians and "scientists".

What kstruckcountry said. Especially about the last part

[WendysOrBust]

really you dont think i know anything.. well let me tell you.. you can run E85 safely but you will not have more torque and horsepower then pure gas on our trucks.. It does not have as much energy per gallon so there is no way it can make more power then pure gas can.. If you had a vehicle that was designed specifically for E85 that had way higher compression or supercharger or turbo with lots of boost then theoretically yes it could make more horsepower then pure gas but the reality is that flexfuel is designed to run on a range of fuels from pure gas to 85% alcohol 15% gas so its going to be tuned for the lowest octane your going to be putting in there, so because its not optimized for E85 theres no way for our trucks to make more horsepower.. then you still have all the potential issues of the alchohol even if it was optimized in terms of corrosion, absorbing water etc...

 

you can run E85 safely but you will not have more torque and horsepower then pure gas on our trucks.. It does not have as much energy per gallon so there is no way it can make more power then pure gas can.. If you had a vehicle that was designed specifically for E85 that had way higher compression or supercharger or turbo with lots of boost then theoretically yes it could make more horsepower then pure gas but the reality is that flexfuel is designed to run on a range of fuels from pure gas to 85% alcohol 15% gas so its going to be tuned for the lowest octane your going to be putting in there, so because its not optimized for E85 theres no way for our trucks to make more horsepower.. then you still have all the potential issues of the alchohol even if it was optimized in terms of corrosion, absorbing water etc...

 

 

 

You make this too easy. I appreciate your will to argue your side, but your serious lack of facts, and source is mind numbing. So I will knock down your two paragraph post above in one link.

 

http://gmauthority.com/blog/2013/07/lingenfelter-performance-puts-the-2014-silverado-on-the-dyno-with-video/

 

Link to video in link above;

 

 

 

I get why you are getting confused. What you say above is true, e85 does not contain as much energy per gallon as 87/91 Pure Gasoline (or even a blend) This is why when we run e85, our gas mileage goes down, because to produce the same spark MORE e85 is required.

 

HOWEVER, this does not translate to power, e85 does NOT have an octane rating of 85. Due to its higher quantity of alcohol to gas, real octane numbers of e85 are somewhere between 94-96 octane depending on the alcohol to gas mixture. Due to the higher octane rating much more timing can be ran, and also why e85 is such a popular choice in high horsepower cars. The higher octane rating allows it to be used in much higher temperatures and is more resistant to pre-detonation.

 

The beauty of the 2014 GMC/Chevy Flex Fuel trucks is that there is a sensor in the fuel pump that tells the ecu how much alcohol is in the tank. This allows the ecu to modify the timing tables on the fly depending on the alcohol to gas mixture.

 

This is why, in the video above the 5.3 produces an astounding additional 20hp and 20 lb/trq to the wheels, just by running e85.

 

From Wikipedia

 

 

 

Using E85 in a gasoline engine has the drawback of achieving lower fuel economy, as more fuel is needed per unit air (stoichiometric ratio) to run the engine in comparison with gasoline. The additional ethanol required for a stoichiometric fuel ratio helps compensate for lack of energy provided by ethanol's lower heating value (LHV), which is lower than the LHV of gasoline.

http://en.wikipedia.org/wiki/E85

 

 

In the same article as above, why you don't run e85 in agricultural engines;

 

 

 

Fuel systems and engines not designed or modified to use E85 may experience increased wear and may fail prematurely. Some (particularly older) fuel systems and those used in powersports and agricultural engines contain rubber seal elements which have excellent gasoline resistance but poor ethanol resistance. These systems generally can accept up to E10 without major degradation in service life of susceptible seal components.

[RyanbabZ71]

Around here E85 is rated up to 105 octane

 

 

Ryan

[WendysOrBust]

Hate to bust your bubble bud, but the motors know what fuel you're putting in and will modify how they run based on it... You will get more power on e85, guarantee it.

 

That said, I hate ethanol simply because of what it is, an environmentally devastating fuel pushed into mainstream existence by farm lobbies and corrupt politicians and "scientists".

Lessening the dependency on oil bought from the Middle East and instead using US grown product.

 

Its the best of both worlds.

[fuse36]

 

You make this too easy. I appreciate your will to argue your side, but your serious lack of facts, and source is mind numbing. So I will knock down your two paragraph post above in one link.

 

http://gmauthority.com/blog/2013/07/lingenfelter-performance-puts-the-2014-silverado-on-the-dyno-with-video/

 

Link to video in link above;

 

 

 

I get why you are getting confused. What you say above is true, e85 does not contain as much energy per gallon as 87/91 Pure Gasoline (or even a blend) This is why when we run e85, our gas mileage goes down, because to produce the same spark MORE e85 is required.

 

HOWEVER, this does not translate to power, e85 does NOT have an octane rating of 85. Due to its higher quantity of alcohol to gas, real octane numbers of e85 are somewhere between 94-96 octane depending on the alcohol to gas mixture. Due to the higher octane rating much more timing can be ran, and also why e85 is such a popular choice in high horsepower cars. The higher octane rating allows it to be used in much higher temperatures and is more resistant to pre-detonation.

 

The beauty of the 2014 GMC/Chevy Flex Fuel trucks is that there is a sensor in the fuel pump that tells the ecu how much alcohol is in the tank. This allows the ecu to modify the timing tables on the fly depending on the alcohol to gas mixture.

 

This is why, in the video above the 5.3 produces an astounding additional 20hp and 20 lb/trq to the wheels, just by running e85.

 

From Wikipedia

 

http://en.wikipedia.org/wiki/E85

 

 

In the same article as above, why you don't run e85 in agricultural engines;

 

i care more about gas mileage and protection of my engine. It's not a race car it's a 4x4 truck. I drive over 100 miles per day. I don't want to have to fill up every day. Pure gas gives me the best results don't believe everything u read in the Internet.

 

 

Sent from my iPhone

using Tapatalk

[WendysOrBust]

i care more about gas mileage and protection of my engine. It's not a race car it's a 4x4 truck. I drive over 100 miles per day. I don't want to have to fill up every day. Pure gas gives me the best results don't believe everything u read in the Internet.

 

 

Oh man. Octane ratings, gas and ethanol properties, you know facts that cannot be argued because they are backed up by science. Same science the guys who put together your $50k truck used. So you don't believe any of these, but the gas station in Broken Arrow with Ol' Jimmy behind the cash register touting magical power behind pure gasoline, yea, facts right there man.

 

GET IR' DONE!

[kstruckcountry]

Lessening the dependency on oil bought from the Middle East and instead using US grown product.

 

Its the best of both worlds.

You're not going to become energy independent using a fuel with a 2:1 energy return. Where do you think all the diesel for the combine I run comes from?

 

More importantly, 700 gallons of water is required to grow a bushel of corn. Up to you to decide if fuel is a sensible use for something that requires so much to grow.

[POS VETT]

So, how does E85 reduce engine life when the engine was designed to use it?

 

Ethanol burns at a lower temperature and it's more resistant to knocking (higher equivalent octane number). Running "pure gas" means running higher temperature meaning higher thermal stresses. "Pure gas" also means very low octane number (anti knock is an additive, remember TEL & MTBE?) meaning your very high compression engine would have trouble keeping auto ignition (aka knocking) at bay. PCM would dump a lot more "pure gas" to cool the combustion chamber and pull back timing resulting in a more sluggish engine with higher fuel consumption.

 

I wouldn't run "pure gas" in my $100 push lawn mower.

[austingta]

More importantly, 700 gallons of water is required to grow a bushel of corn. Up to you to decide if fuel is a sensible use for something that requires so much to grow.

 

 

Very little corn is grown on irrigated land, right? Even here in Texas we try to grow it as a dry land crop, with wildly varying results year-to-year. I imagine it does take 700 gallons of water, sure.

[sdeeter19555]

 

 

Very little corn is grown on irrigated land, right? Even here in Texas we try to grow it as a dry land crop, with wildly varying results year-to-year. I imagine it does take 700 gallons of water, sure.

The biggest use of water is during turning the grain to alcohol.

 

There is more energy expended in planting/harvesting/processing corn than you ever get out of it.

 

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[Brian S.]

that article was typed up by a farmer lol. I'm an oil man.

 

 

You work for the oil industry? And as such have financial interest in seeing people not use E85?

 

It's well documented that E85 produces a significant hp/torque boost in the Ecotech 3 4.3l and 5.3l engines, and the engines were designed to run it. (different gaskets, fuel lines, sensors to adjust timing)

 

Even the last gen flex fuel engines get a little boost running E85, and they didn't adjust the timing as far as I know.

 

Whether E85 is better for the environment and a good idea is another story, but if you want what amounts to cheap racing fuel, E85 is it.

[02suburbanZ71]

E85 is worse for the environment- production wise but it burns cleaner during detonation

[00Silverado4x4]

E85 is worse for the environment- production wise

Why do you say that?