Quote:
Originally Posted by AshG
you need a swirl pot. to run efi properly. you have a low pressure pump and a high pressure pump.
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Stricly speaking you don't need a swirl pot if you have a well designed fuel tank. The issue lies with heavy cornering where you can get fuel surge. In carbs the float bowl can often act as a buffer and mask any fuel starvation. When using EFI any loss of fuel supply will lead to the engine stuttering as there is no buffer - a swirl pot is basically an extra buffer added into the system.
If your starting from scratch you can build in lots of baffles, a sump for the pickup and even a gated baffle system around the pickup. Another method you can use on an existing tank is fuel tank foam to prevent the surge although this cannot be used with 'moving arm' type fuel senders.