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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Can I avoid fuel starvation with Fuel-it Stage 2 B.L. by using a bucket??



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      06-25-2019, 08:39 PM   #1
JonEQuest
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Can I avoid fuel starvation with Fuel-it Stage 2 B.L. by using a bucket??

I bought a Fuel-it Stage 2 bucketless fuel pump "new" but unused for a good deal from someone who sold his car. I am ready to install it now but have read that I may get fuel starvation on hard turns, etc. with a low tank (which worries me) and that my fuel pump controller may not be able to handle extra amperage. My questions are: Can/should I put this in the stock bucket somehow to avoid starvation? Also should I upgrade my fuel pump fuse size or do something else to prevent fuel system failure in the future?
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      06-26-2019, 10:05 AM   #2
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Quote:
Originally Posted by JonEQuest View Post
I bought a Fuel-it Stage 2 bucketless fuel pump "new" but unused for a good deal from someone who sold his car. I am ready to install it now but have read that I may get fuel starvation on hard turns, etc. with a low tank (which worries me) and that my fuel pump controller may not be able to handle extra amperage. My questions are: Can/should I put this in the stock bucket somehow to avoid starvation? Also should I upgrade my fuel pump fuse size or do something else to prevent fuel system failure in the future?
sell it and buy the bucketed version if worried about that or you could try the big fuel sock.


Search EOS n54 fuel pump controller. this controller will handle the higher amperage and be able to control more than 1 pump if you choose.
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      06-26-2019, 12:13 PM   #3
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Quote:
Originally Posted by Jeef View Post
sell it and buy the bucketed version if worried about that or you could try the big fuel sock.


Search EOS n54 fuel pump controller. this controller will handle the higher amperage and be able to control more than 1 pump if you choose.
Or run separate wiring to a relay that connects to a hob switch and turns on eith when you hit 4psi of boost or 15 if you buy that version of the Hobbs switch.

As for fuel starvation, my guess is that as long as you have at least 1/3rd a tank with the longer fuel socks you shouldn't have any issues, but if hour worried then sell the kit and get a bucket version. Or take your fuel buck apart and cust make it to fit the one you bought (not sure how easy that would be)
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      06-27-2019, 01:17 AM   #4
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I had an old 1980 Porsche 924 that would starve of fuel when u take a hard turn. Morning happens, it just stalls lol
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      07-08-2019, 11:19 AM   #5
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I decided to just install it and see what happens. I will plan to not let it get below 1/8 tank which is what everyone should do anyway. I don't track the car so I should be alright I guess. One thing that I wonder about is how the fuel goes from one side of the tank to the other and stays equalized? The two black hoses are just laying there. Nothing pumps fuel between the two tanks, is it just gravity and suction through the hoses?
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      04-05-2020, 08:40 PM   #6
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Quote:
Originally Posted by JonEQuest View Post
I decided to just install it and see what happens. I will plan to not let it get below 1/8 tank which is what everyone should do anyway. I don't track the car so I should be alright I guess. One thing that I wonder about is how the fuel goes from one side of the tank to the other and stays equalized? The two black hoses are just laying there. Nothing pumps fuel between the two tanks, is it just gravity and suction through the hoses?
How's it holding up? Any fuel starvation?
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      04-05-2020, 08:47 PM   #7
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My opinion: Bucketless is trash at anything under 1/4 tank. Its not worth the price difference between buckeltess/bucketed
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      04-06-2020, 01:38 PM   #8
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Holley hydramat can help solve your issues if you don't want to go a new pump route.
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      04-06-2020, 01:40 PM   #9
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Quote:
Originally Posted by JonEQuest View Post
I decided to just install it and see what happens. I will plan to not let it get below 1/8 tank which is what everyone should do anyway. I don't track the car so I should be alright I guess. One thing that I wonder about is how the fuel goes from one side of the tank to the other and stays equalized? The two black hoses are just laying there. Nothing pumps fuel between the two tanks, is it just gravity and suction through the hoses?
There is a venturi on the drivers side. You'll still get pumping from the drivers side over to the passenger side, just make sure the two hoses you referenced are actually on the passenger side.
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      04-06-2020, 02:59 PM   #10
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Quote:
Originally Posted by JM98 View Post
My opinion: Bucketless is trash at anything under 1/4 tank. Its not worth the price difference between buckeltess/bucketed
This definitely would not work for me as I calculate my E85 mixture based off an empty tank 15.9G + 10%.

Only way I would get a bucketless is if I went full e85 or had a flex fuel sensor.
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      04-07-2020, 10:15 AM   #11
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Quote:
Originally Posted by nicky dj View Post
This definitely would not work for me as I calculate my E85 mixture based off an empty tank 15.9G + 10%.

Only way I would get a bucketless is if I went full e85 or had a flex fuel sensor.
you drain your tank down to the last drop before you fill up? thats nuts

each slash on the gauge .79 gallons, i can calculate an exact mix no matter when i fill up easily, no way id wait to be bone dry before filling
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      04-07-2020, 11:21 AM   #12
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Quote:
Originally Posted by type-dRew View Post
Quote:
Originally Posted by nicky dj View Post
This definitely would not work for me as I calculate my E85 mixture based off an empty tank 15.9G + 10%.

Only way I would get a bucketless is if I went full e85 or had a flex fuel sensor.
you drain your tank down to the last drop before you fill up? thats nuts

each slash on the gauge .79 gallons, i can calculate an exact mix no matter when i fill up easily, no way id wait to be bone dry before filling
Nah typically 25 miles left, but that's well under a 1/4 tank.
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      04-07-2020, 11:24 AM   #13
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Quote:
Originally Posted by nicky dj View Post
Quote:
Originally Posted by type-dRew View Post
Quote:
Originally Posted by nicky dj View Post
This definitely would not work for me as I calculate my E85 mixture based off an empty tank 15.9G + 10%.

Only way I would get a bucketless is if I went full e85 or had a flex fuel sensor.
you drain your tank down to the last drop before you fill up? thats nuts

each slash on the gauge .79 gallons, i can calculate an exact mix no matter when i fill up easily, no way id wait to be bone dry before filling
Nah typically 25 miles left, but that's well under a 1/4 tank.
That's crazy. I like using the throttle too much. I fill up before I get to a 1/4 tank or sooner if I'm close to the e85 pump.

I won't ever go wot under 1/4 tank just because I don't like the possibility of starvation. I've ran down to the light before but not purposely.
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      04-07-2020, 12:32 PM   #14
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I'm conservative under a 1/4 tank, and luckily I have an e85 pump right next to my house. In fact I'm pretty conservative with e85 in general as in I do a regular gas pump every 3rd tank or so just to flush out the systrm. It's my daily driver for now, an '07, and my stock lpfp and hpfp are mint at their pressure readings.
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      04-08-2020, 10:17 AM   #15
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once you hit the - - - - - on the mileage range you still have like a gallon of gas.
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      04-09-2020, 12:16 AM   #16
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Quote:
Originally Posted by Jeef View Post
once you hit the - - - - - on the mileage range you still have like a gallon of gas.
Thats great if you have a bucketed fuel pump, not so much with a fuel mat. Not sure why anyone without a race application would run one. Even then, most racers go with a sump.
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      04-09-2020, 12:21 AM   #17
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Ill just leave this here.
Not recommended, but really some people worry much more than needed.
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      04-09-2020, 08:42 AM   #18
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Quote:
Originally Posted by JM98 View Post
Quote:
Originally Posted by Jeef View Post
once you hit the - - - - - on the mileage range you still have like a gallon of gas.
Thats great if you have a bucketed fuel pump, not so much with a fuel mat. Not sure why anyone without a race application would run one. Even then, most racers go with a sump.
Are you using the fuel sock that the pumps came with?
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      04-21-2020, 07:14 PM   #19
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Quote:
Originally Posted by JonEQuest View Post
I decided to just install it and see what happens. I will plan to not let it get below 1/8 tank which is what everyone should do anyway. I don't track the car so I should be alright I guess. One thing that I wonder about is how the fuel goes from one side of the tank to the other and stays equalized? The two black hoses are just laying there. Nothing pumps fuel between the two tanks, is it just gravity and suction through the hoses?
The fuel pump flows two ways, one to the Venturi which keeps the bucket full and the other to the main line. The Venturi has a much smaller hole so most of the other fuel flows to the car. I bought a walbro 450, $110 and a few connectors and made a stage two bucketed system. If anybody wants to know how, Pm me. It's been working great I'm running e50 on mhd 2+
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      04-21-2020, 07:28 PM   #20
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Quote:
Originally Posted by Jeef View Post
once you hit the - - - - - on the mileage range you still have like a gallon of gas.
Who told you that?
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      04-22-2020, 09:05 AM   #21
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Quote:
Originally Posted by type-dRew View Post
Quote:
Originally Posted by nicky dj View Post
This definitely would not work for me as I calculate my E85 mixture based off an empty tank 15.9G + 10%.

Only way I would get a bucketless is if I went full e85 or had a flex fuel sensor.
you drain your tank down to the last drop before you fill up? thats nuts

each slash on the gauge .79 gallons, i can calculate an exact mix no matter when i fill up easily, no way id wait to be bone dry before filling
Is there like a formula for the e85 and 93 mix?

i'm trying to go e50
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      04-22-2020, 09:20 AM   #22
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Quote:
Originally Posted by Sgop335 View Post
Quote:
Originally Posted by Jeef View Post
once you hit the - - - - - on the mileage range you still have like a gallon of gas.
Who told you that?
It's probably about 2.5 gallons
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