We are running Radium’s FCST internal surge tank in our RA fuel cell. We have always felt the the FCST has revolutionized fuel handling in race cars and now we finally get to run one in one of our cars!
The FCST has all the terminals to run a lift pump and up to three main pumps. It also has AN fittings for fuel feed, return, and vent lines. Everything can be run super cleanly and safely with no worries about wires shorting or leaks.
The FCST drops right into Radium and Fuelsafe and maybe other fuel cells.
Here is the internal surge tank in the FCST. Fuel from the lift pump is pumped into the small surge tank which is kept full to the brim and feeds the main fuel pumps to prevent starvation during cornering, acceleration, and braking. If the lift pump sucks air, there is enough fuel to keep the main pumps fed for several seconds of full-throttle running at least. Having the surge tank inside the fuel cell is much cleaner and safer than having another tank and all the separate plumbing and wiring it entails without the fuel cells crash protection. The silver tube is Radium’s optional fuel level sensor.
2 comments
The fuel tank being rotted out is a worry in the back of my mind as I am getting prepared to get back into my S13 after it has been sitting for 15years. After doing some intial searching, I now have a hankering to swap out the rear floor and subframe to swap over to an S14 setup to have the mid-mounted poly tank. I’ve been planning for all these years to keep the car a street car, but upgrade and adapt it to modern standards/crash safety (I work in the collision industry).
If you were going to do all of that I would just get the additional safety of a fuel cell.