8Pack, you have undoubtedly seen the extra fuel cell setup on cars before, that is why you are kicking around the idea of having that extra tank filled with higher octane fuel. The cars you see with this extra fuel system do it for reasons other than just having a higher octane alternative to switch to solely to have their engine running race gas.
This second fuel system on cars is to support N2O.
A separate fuel system dedicated to a nitrous kit; There are some really good fuel pumps out these days that are capable of flowing enough fuel reliably to support both an engine and a nitrous kit but it's still better to have a separate system. A separate system keeps the N20 system "self-contained". You're not throwing engine components and engine fuel supply variables into the list of factors that will affect a nitrous tune-up.
A small cell mounted at the FRONT of the car with a filter and pump is all it takes. Keeping the lines as short as possible keeps the fuel moving towards the rear of the vehicle as it makes it's way to the spray. This will help eliminate G-forces from being a negative factor so your idea of putting it in the trunk is not the best method.
The ability to be able to only run the good gas in your small cell and still be able to run cheaper, lower octane fuel in your main fuel cell is a positive reason for this setup. N2O systems need to be running high octane fuel at the point of squirt to prevent detonation. Are you at the point of detonation and NOT running nitrous? If yes, then you need to address that issue, especially if you're running your car all engine and not look for a High-Octane band-aid . If you legitimately need 110 octane for whatever reason, don’t put your secondary system in the trunk. If you need a second fuel system then you are going fast enough to have the G-forces affect flow.
I like how you are thinking outside the box though. Maybe you should get a 150 shot kit, maybe you could get 2 gallons to the mile then.
