The only thing I have to say to that is this:

http://www.microfueler.com/

http://www.microfueler.com/t-technology.aspx

"...The first year is provided at no cost with the purchase of a MicroFueler. Subsequent years are priced at $9.95 billed monthly or $99.95 annually in advance..."

That'* a lot of fuel per week, and does you no good if your going on a long trip. That'* my point. E85 is not available enough to use it all the time. Flex fuel cars can switch between E85 and gas. But how do we convert our cars over to that? It'* a great idea, but one that wont work, sorry. Unless there'* a station every few blocks, no one is going to go threw the expense. And unless there'* enough market, there'* not going to be a station every few miles. It'* a catch 22. It'* all about money.

I think they want to have MicroFueler stations, but of course it won't get anywhere with the gigantic oil companies in the way. Again, you're missing the point, it'* just another way to power your car without gas. Overhaul may be required if you want to do this, but the mere fact that people are trying different things should be noticed.

Don't spit on their trail just because you don't like where they've gone. Everything is about money, if you're going to make a product you obviously want to be paid for it. If we're in a Venus Project society, then that would be obsolete and only the best inventions would be produced. Give them credit for trying.

I'm not ripping on them for trying. But I believe even the best inventions will fail if they cost more then the value, or are not easy to use. Keep bringing up the alternatives.

Interesting.
Couldn't the switch back to gas be a simple as throwing a switch that disables the E100 pcm and activates the gas pcm (tuned for the bigger injectors of course)?

I guess that'* possible, but there are a lot of wires going in to a PCM, you would need a big switch.

I was thinking just power to begin with. Not sure what loads are placed on the harness & sensors or what behavior we'd get out of a two pcm setup but transistors have apretty high impedance when they aren't switched on so its worth trying imo should anyone want to try.

I'd be more concerned with fueling. Going from e85/e100 to gas, the injector pulses would be smaller and the car probably wouldn't start until gas actually reached the engin but going the other way I don't know what would happen if you had e100 injector pulses with gas in the fuel lines. Too rich to burn maybe and safe, or Kaboom (and I'm not talking about the cereal )

You wouldnt really have to worry about that much. If you have a return style system, the problem solves itself, but even with a returnless system, there isnt THAT much fuel in the lines, you switch to your ethanol tune, and you just run a little rich for a little while until you are running full ethanol. leave it switched until you are back to full gas in your lines.

For the money, I would just put a small volkswagon turbo diesel in the car and then you could run cheap biodiesel, if you are really looking for an alternative to foreign oil, want to save the planet, or just want to save some money over the next 10 years. Ethanol is just putting a bandaid on a broken bone. Ethanol is nothing near the answer to the fuel problem, no matter what we here in the midwest would like you to believe. It is just a football to keep people thinking they are winning the green war and taking money away from the middle-east.

I used to get tunes on a chip with a switch for my race cars. Look into chips.... Like superchips and whatnot, most manufacturers offer ones that can have multiple tunes and you can switch back and forth on the fly.

Really useful for situations where you need to change tunes often, such as racing.

Otherwise, you can just get a programmer with multiple tunes, but that is a little less convenient, since you have shut the car off and spend a couple minutes reflashing between fuels.