Thread: Dual Fuel Hypothetical E85/Gasoline

So I have been contemplating ways to take advantage of E85 and its ability to run more timing and make more power without losing the convenience of petrol with its availability and fuel efficiency. I did the math and even though E85 is considerably less expensive than premium, if you truly lose 30% efficiency with it, you end up spending more on the E85.
So here's my idea and I am sure there is more than one way to potential do it; setup a second small fuel tank and pump and use it for E85. Then to use it, either find a way with a window-switch like used with nos or use performance-shift to engage it.
I heard that some of the GM truck guys use the Tow/Haul mode and dual injectors to do the same basic thing.

The tricky think for us would be the fuel delivery. When using dual injectors, usually one injector is setup well and the other one just squirts off to the side. So my idea is to get around that is to run one set of bigger injectors and tap into the fuel rails and have the 2 fuel pumps run at different rates.

So here's an article I found when trying to find info about the basic idea:
Ethanol-Injection Systems Explained - Tech Dept. - Car and Driver

I understand that there's probably a bunch of aspects to it I haven't considered; at this point it's all hypothetical, but it would be unique.
I also know that I'll probably get somebody to tell me to just run meth injection, but I don't want to deal with potential damage to the coating of my gen 3, and it also wouldn't provide nearly as much advantage as running E85.

Could try running an ssm90 lim and have 2 sets of injector holes

After looking at the picture of it on zzp's website, I do not understand how a person could run two sets of injectors with that.

It will never work well, set-up like that. When the E85 pump switches on, you will still have your fuel lines and fuel rail full of regular fuel. By the time you are actually running it on E85, your run will be over, and it will be switched back over to regular fuel pump.

The SSM90 intake has injector ports in it. The L67/L32 heads also have injector ports. Hence two sets of injectors.

If you get a ssm90 lower intake with ssm90 rails and still somehow kept your stock rails and injector ports and then sized your injectors so one set was 25 to 30 % larger it could be done. Then would just need to shut off one pump and turn on the other.