tp tunes for e85??
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Senior Member
Joined: Dec 2006
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From: Illnois
tp tunes for e85??
hi
was wondering, im planning on getting xcal2 with custom tuning from TP.
can you do a tune for e85 105 octane and above?
is it worth it? any drawbacks?
dont really care bout the mileage, no good mileage on that stuff anyway.
but im thinkin the 105 + octane would make for a good performance tune .
please enlighten me as to the e85 tune.
also custom 93 performance tune compared to just the e85 , no custom tune. major diff in the feel for seat of pants ??
was wondering, im planning on getting xcal2 with custom tuning from TP.
can you do a tune for e85 105 octane and above?
is it worth it? any drawbacks?
dont really care bout the mileage, no good mileage on that stuff anyway.
but im thinkin the 105 + octane would make for a good performance tune .
please enlighten me as to the e85 tune.
also custom 93 performance tune compared to just the e85 , no custom tune. major diff in the feel for seat of pants ??
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Joined: Mar 1998
Posts: 13,385
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From: Virginia
Yes, we can tune for E85, but it's not going to add a LOT of power. Also, the octane is probably not quite as high as you think - on average, it's closer to about 98 octane, sometimes a *little* bit more depending on who did the actual refining - you also need to remember that it also has a lower energy content.
The truth of the matter is that you can end up with a result ranging anywhere from about a 2% loss in power to, at maximum, about a 3% increase in power by tuning specifically for E-85 fuels as compared to tuning for pump gasoline - it's not like you just dumped in 106 octane racing gas and can tune for it and gain huge power.
I don't think you will actually feel a difference in the seat of the pants in tuning for E-85, simply because the power difference, either up or down, just isn't that much, a few percent one way or the other - and I don't think it's enough to actually be "felt" in a 2.5-3 ton truck like these F-150's.
There are some incorrect perceptions about E-85 and the power that can be obtained from it - people claiming that it's like using a 105-110 octane race gas and that you can add in a ton of spark and make a lot more power than pump gas are by and large misinformed - it just doesn't work like that (I wish it did!), it's not a miracle fuel. You will also usually see a bit of a decrease in fuel mileage due to the average 30% reduction in energy content in E-85 fuel compared to pump gasoline, by the way - you have to burn more of it to get the same amount of "work" from the engine due to it's lower energy content.
And of course, all of this says nothing about whether the vehicle has an E-85 compatible fuel pump, injectors, etc., as the fuel system must be up to snuff to use that fuel as well - if it's a 2004 or earlier F-150, chances are you may not have a fuel system that can take 85% ethanol content, as alcohol-based fuels are corrosive.
This is just some brief and generalized info - there are some exceptions here and there, but by and large, this is about what to expect.
Please feel free to call us if you'd like to go over this in more detail, OK?
The truth of the matter is that you can end up with a result ranging anywhere from about a 2% loss in power to, at maximum, about a 3% increase in power by tuning specifically for E-85 fuels as compared to tuning for pump gasoline - it's not like you just dumped in 106 octane racing gas and can tune for it and gain huge power.
I don't think you will actually feel a difference in the seat of the pants in tuning for E-85, simply because the power difference, either up or down, just isn't that much, a few percent one way or the other - and I don't think it's enough to actually be "felt" in a 2.5-3 ton truck like these F-150's.
There are some incorrect perceptions about E-85 and the power that can be obtained from it - people claiming that it's like using a 105-110 octane race gas and that you can add in a ton of spark and make a lot more power than pump gas are by and large misinformed - it just doesn't work like that (I wish it did!), it's not a miracle fuel. You will also usually see a bit of a decrease in fuel mileage due to the average 30% reduction in energy content in E-85 fuel compared to pump gasoline, by the way - you have to burn more of it to get the same amount of "work" from the engine due to it's lower energy content.
And of course, all of this says nothing about whether the vehicle has an E-85 compatible fuel pump, injectors, etc., as the fuel system must be up to snuff to use that fuel as well - if it's a 2004 or earlier F-150, chances are you may not have a fuel system that can take 85% ethanol content, as alcohol-based fuels are corrosive.
This is just some brief and generalized info - there are some exceptions here and there, but by and large, this is about what to expect.
Please feel free to call us if you'd like to go over this in more detail, OK?