Bucket vs bucketless

[pbondar]

N54 Bucketed fuel pump upgrade - "Stock Series"

Horsepower Supported: Single Shot: 600WHP on Racegas ethanol blends below E50 525WHP on Ethanol blends above E50 Double Shot: 700WHP+ on Racegas ethanol blends below E50 650WHP on Ethanol blends above E50 Available Pump Upgrades: Primary: Walbro F90000295. No check valve means unsuitable as...

performancefuelingsolutions.com

N54 Bucketless Fuel Pump Upgrade - "Stock Series"

Horsepower Supported: Single Shot: 600WHP on Racegas ethanol blends below E50 525WHP on Ethanol blends above E50 Double Shot: 700WHP+ on Racegas ethanol blends below E50 (750 with 285 upgrade) 650WHP on Ethanol blends above E50 (700 with 285 upgrade) (If you need more power, we suggest the PFS...

performancefuelingsolutions.com

Can someone explain the pros and cons of the two options..this is for an E89 35is with TTE500 turbos running on UK 98 RON fuel pls?

 

[bakerdou]

To summarize,
bucket-less pros is more flow
no need to share outlet flow with bottom venturi, which used to fill the bucket, so 10-20% total flow difference for same pump go with bucket/bucket-less.

bucket-less cons is less safety margin
when in track or long right sweep of any kind, if the fuel level is low(say 1/2), the bucket-less setup make the fuel in the tank move away from pump pickup, which results in fuel starvation.

Some of the problems and solutions such as hydramat with bucket-less have been discussed alot in some threads.

Bucketless sucks - I keep running out of gas at 3/4 of a tank.

I have the Fuel-It stage2+ bucketless LPFP. I keep running out of fuel when cornering hard even at 3/4 of a tank.... Does anyone here run a hydramat and did it fix your problem when cornering hard ? I really don't feel like spending 170$ on one and taking a chance to still have fuel starvation...

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