For hobbyists who need to tune tank capacity, the Serpent 804149 Fuel Tank Volume Inserts supply a simple solution. These injection-moulded nylon pieces fit inside compatible fuel tanks and let you alter internal volume to suit temperature or track demands.
The Serpent 804149 kit comes on a single frame with three distinct insert sizes, making it straightforward to change tank volume between sessions. Using a smaller insert can help keep pressure steady and reduce fuel surge during hot runs.
These inserts are suitable for several Serpent fuel tank layouts, including commonly used 75cc and 125cc sizes, providing adaptability for different car setups. Confirm clearance and mounting before final installation.
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