[Ondontii]

As far as I am concerned, OEM treats E85 like its methanol but.....

Ethanol is nothing like methanol and e85 has petrol in it. Methanol eats up those viton seals. Methanol absorbs massive quantities of water and rusts your fuel lines from the inside. etc etc. About the worse thing I can think of for ethanol is that like any akly, it wont lubricate (it will actually clean off) your cylinder walls so if you have a cylinder misfiring or not completely combusting, you will ruin your rings. Luckily we do have some gasoline in that fuel and you hopefully avoid driving your car with a misfire.

All those E85 % sensors are meant to help the car deal with various mixes of gasoline and e85.

When you build an E85 car, you dont need that stuff because you are ONLY putting E85 in the car unless you have a couple safe tunes that you can swap over to when you dilute the E85 (and I would avoid that for safeties sake).

As far as I know, Dodge Flex fuel cars in the early 90's used basically the same fuel pumps as the turbo cars but had stainless fuel rails (not really necessary) and 20% larger injectors then the turbo cars (also not necessary because they didnt have turbos and made jack for power.

The flex fuel cars were seriously overbuilt even in the early 90's. They had 300hp worth of fuel injectors for a 90 hp car. Honestly that is horrible engineering.

I dont think you follow their example, but you follow the example of shops building awesome E85 cars that run hapilly on the street.

If you feel to lazy to maintain your fuel system parts then you probably should avoid building your car alltogether.