well the hole reason im switching to the fuel cel is to stop the fel from sloshing around the tank... if you compare the area of the fuel cell to the area of the tank. the cell is smaller so haveing one gallon in the tank will mean the fuel is 1 inch deep rather than 1/2 inch deep ( i dont know the real number but you get the idea?) plus the fuel cell has a sump and is baffled on the inside. i got the ten gallon cuz i want to be able to drive it far but still do some spirited driveing once i get there with it on the more empty side... im not too worried about passing emmisions or registration becouse the car already has tons of things to prevent it from gettin it.wats the purpose of getting a fuel cell if ur getting one that almost the same size as the stock one?
usually the purpose of running a fuel cell is so u only run the amount of gas for a days worth of runs. give or take.. but it aint safer cause now the tank is sitting inside of the car which makes it vunerable to emitting fumes inside the car.. simialr to how car batteries sit in the trunk has to be in a sealed box with a vent to the outside.
a couple of notes that i might want to add is if ur ever planning to run in any events that follow the nhra ruling ur gona have to put ur stock fuel tank back in.. nhra states in most fwd classes
Fuel cell prohibited. OEM fuel tank mandatory. No other container,
fuel cell, bottle, etc. may contain any type of fuel. See Section 4
and General Regulations 1:5
also in the area i live in a daily driven car with a fuel cell in it will not pass for registration. car has to be registered as a non-daily driven car and so forth. u might want to find out about that in ur area