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I really wanted to do this on mine (have filler dump into surge pot) but the geometry didn't allow it. The top of my tank is 1/2" from the floor of trunk and I didn't want the fuel fill tube encroaching in that area.
I also thought a reed switch on a float would be cool to let you know if the pot was less that 2/3 full or so, but ended up KISS. Just another thing to worry about.
I've never ran out of fuel, or even starved it out, but I can see a long sweeper with less than 1/4 tank becoming a problem. It would have to be one long never ending sweeper to burn 1/2 gallon of gas.
Lets see... lets assume 8 MPG on the track, at 80 MPH. 1/2 gallon would get you 4 miles...that's a 3 minute sweeper. I don't think I'm too far off on MPG. you're not accelerating too much on a long turn. But then again, if it's that gradual of a turn to take 3 minutes, you could be running 200 MPH and using a lot more fuel.
You could always make the pot bigger, like 2 gallons. Then you could make a lap on just the pot's contents.
But if there's any back and forth, no problems. The fuel is in the middle.
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