Running E85 with out Tuning??
Running E85 with out Tuning?? For some reason my dad being a farmer put e85 in his pickup and ran it, also because it was only $1.99. Obviously the engine light went off after some time. I was telling him how its not that hard to tune it for it, but he doesn't want to tune his pickup.
I got to thinking, it seems e85 uses about 30% more fuel. Would it be possible to simply run 30% larger injectors? Then it will be relatively close and the oxygen sensors will change the short term and long term fuel trims. Only thing i don't know about is how close it would be at WOT, but i could hook up my wide band to make sure it isn't running too lean.
Obviously it isn't ideal, but i think it would work, correct?
I got to thinking, it seems e85 uses about 30% more fuel. Would it be possible to simply run 30% larger injectors? Then it will be relatively close and the oxygen sensors will change the short term and long term fuel trims. Only thing i don't know about is how close it would be at WOT, but i could hook up my wide band to make sure it isn't running too lean.
Obviously it isn't ideal, but i think it would work, correct?
I have wondered this myself. If it would be possible to just change the injectors to meet the additional fuel demands.
One problem with e85 is that they change the blend. It can vary all the way down to e70.
One problem with e85 is that they change the blend. It can vary all the way down to e70.
I did a research paper on E85 for school last year. Not only do you have to compensate for the larger fuel load you also need to upgrade all your lines and everything. The ethanol is corrosive and will eat up all your stock lines unless the car is already flex fuel ready.
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From: Battlecreek, MI / Mansfield, OH
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From: Battlecreek, MI / Mansfield, OH
You would have to tune for larger injectors, and E85 AFR is not 14.7, its 9.76. Your O2 sensors are going to try to achieve an AFR of 14.7. So you would have to tune your O2 sensors also. I'm sure there is more to it than that, but that is what i do know for sure. So IMO no it will not work.
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YES!!!!!! This will work 100%!!!!!! We did this back in 2001 when we didn't have any tuning software and it worked awesome!!! You may still have some cold weather starting issues as a true flex fuel adds more fuel at low temps than on gas. Your trims will still do what they need.
You would need a set of injectors that flows roughly 36lbs/hr if you are going to run E-85 all the time. Otherwise, you could always put in some 33lb/hr's in and run it flex fuel!!!! This would be the best choice. Then, you could run regular 10% all the way up to E-85 and your truck will do the work as long as your MAF and O2's are good.
Or, we could tune it up to be flex fuel.
Any way you do it, give us a call and we can get you setup.
Thanks,
Mark
You would need a set of injectors that flows roughly 36lbs/hr if you are going to run E-85 all the time. Otherwise, you could always put in some 33lb/hr's in and run it flex fuel!!!! This would be the best choice. Then, you could run regular 10% all the way up to E-85 and your truck will do the work as long as your MAF and O2's are good.
Or, we could tune it up to be flex fuel.
Any way you do it, give us a call and we can get you setup.
Thanks,
Mark
We sell a ton of 30% bigger injectors so e 85 works on a stock tune. Especially for Ford guys. They never tune!, The o2 sensor only measures the o2 it does not care what fuel you run. JMO
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sorry but what's the point of running E85 without tuning for it? Isn't running it from a performance stand point the fact that you can run more timing with E85..... If your not going to run more timing than why do it?
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There is no benefit to switching for performance in a NA situation anyways. It would purely be for saving money. Unless you can take advantage of the octane.
Now if your not set up to utilize the octane than your going to lose about 25% of your fuel economy. So e85 would need to be atleast 25% cheaper to be cost efficient. Does if make more power yes, is it cleaner yes, is it renewable yes.
I would run it if there were more pumps around me but its not cost effective yet.
The site change3e85.com sells a flex fuel module that plugs up in minutes they say they have sold over 100k of them. I would guess there maybe enough play in your factory fuel injectors to make it work without replacing them, how ever you may be crossing over the comfort threshold for injector duty cycle.
Now if your not set up to utilize the octane than your going to lose about 25% of your fuel economy. So e85 would need to be atleast 25% cheaper to be cost efficient. Does if make more power yes, is it cleaner yes, is it renewable yes.
I would run it if there were more pumps around me but its not cost effective yet.
The site change3e85.com sells a flex fuel module that plugs up in minutes they say they have sold over 100k of them. I would guess there maybe enough play in your factory fuel injectors to make it work without replacing them, how ever you may be crossing over the comfort threshold for injector duty cycle.
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From: Battlecreek, MI / Mansfield, OH
There is no benefit to switching for performance in a NA situation anyways. It would purely be for saving money. Unless you can take advantage of the octane.
Now if your not set up to utilize the octane than your going to lose about 25% of your fuel economy. So e85 would need to be atleast 25% cheaper to be cost efficient. Does if make more power yes, is it cleaner yes, is it renewable yes.
I would run it if there were more pumps around me but its not cost effective yet.
The site change3e85.com sells a flex fuel module that plugs up in minutes they say they have sold over 100k of them. I would guess there maybe enough play in your factory fuel injectors to make it work without replacing them, how ever you may be crossing over the comfort threshold for injector duty cycle.
Now if your not set up to utilize the octane than your going to lose about 25% of your fuel economy. So e85 would need to be atleast 25% cheaper to be cost efficient. Does if make more power yes, is it cleaner yes, is it renewable yes.
I would run it if there were more pumps around me but its not cost effective yet.
The site change3e85.com sells a flex fuel module that plugs up in minutes they say they have sold over 100k of them. I would guess there maybe enough play in your factory fuel injectors to make it work without replacing them, how ever you may be crossing over the comfort threshold for injector duty cycle.
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I you have followed the threads of people that have done it theirs gains are in the 5hp range. I would love for it to be more I would but it doesnt work that way. Do you gain more horse power when your car that is made to run on 87 gets filled with 93. No. Sure a tune will help and you can gain a little bit of power.
Im not trying to kill any dreams of upset anyone, But your real benefit would be a Higher CR or FI setup. Try to search the threads I know there are some around post gains from e85 on a NA setup. It dose smells much better that gas.
Im not trying to kill any dreams of upset anyone, But your real benefit would be a Higher CR or FI setup. Try to search the threads I know there are some around post gains from e85 on a NA setup. It dose smells much better that gas.
I you have followed the threads of people that have done it theirs gains are in the 5hp range. I would love for it to be more I would but it doesnt work that way. Do you gain more horse power when your car that is made to run on 87 gets filled with 93. No. Sure a tune will help and you can gain a little bit of power.
Im not trying to kill any dreams of upset anyone, But your real benefit would be a Higher CR or FI setup. Try to search the threads I know there are some around post gains from e85 on a NA setup. It dose smells much better that gas.
Im not trying to kill any dreams of upset anyone, But your real benefit would be a Higher CR or FI setup. Try to search the threads I know there are some around post gains from e85 on a NA setup. It dose smells much better that gas.
So, you need to do a little testing or just look at the whole curve and not just peak numbers.
