ORIGINAL: supertib

there are 3 good reasons to change the Hyper tank... the mounting posts suck and allow too much flex which will cause fuel to foam, its very common to see air bubbles in the Hypers fuel line because its sucking foam....... 2nd reason is the tanks shape, its huge on top and very small on the bottom, which will cause the fuel pressure to change as the tank uses up its fuel, exactly what happens on a Savages fuel tank... The fuel pressure is idrectly related to the surface area of the fuel, more surface area means more pressure, less surface area means less pressure..... Which is why the best tanks are always square, the surface area stays constant from full to empty. The Mugen tank is square and holds very consistent fuel pressure.... You can tune around the Hyper tank( rich when full, lean when empty) just like you can with a Savage tank... but honestly why bother hassling when you can install a much better tank that will tune much more constantly from full to empty... As well the left side opening of the Hyper tank is ghetto and requires someone to hold the pipe side of the truggy to fuel the tank.... total PITA..its much easier to refuel with a standard front/back fuel tank....