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| Re: EFI overall design: how does a slosh tank fill without overflowing? |
Subject: Re: EFI overall design: how does a slosh tank fill without overflowing?
by lamb_daiquiri on 2020/10/16 21:33:35
If you use a needle and float in the slosh (surge) tank to limit the fuel in and it has a bit of head space (volume above cut off) it shouldn't over flow. Your high pressure pump is just a circuit, even if the injectors are off it can't return more fuel than it's drawn out. The tank will still need a breather and depending on application that may need to plump into the emissions control circuit for fuel vapor whether it's a vent like on my 1200 or a charcoal canister or something else.
The other thing I've done is use a lift pump and a liquid level switch so it only pumps when the tank needs filling. This is useful if you've run out of fuel, you can fill the surge tank before turning the motor over.
Hope this helps.
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