Holes in bottom of plastic fill bucket?
05-21-2016, 09:30 PM
#1
Holes in bottom of plastic fill bucket? I purchased a used 99-02 F-Body Racetronix RXP255 Fuel Pump Assembly with Racetronix Fuel Pump Wiring Kit (Hot wire kit) PN:FPA-001B & FPWK-017W and the plastic fill bucket was included with the fuel pump already setup inside the bucket. The plastic fill bucket has 3 holes drilled into the bottom of it, so mounting a fuel sock on the outside is out of the question.
Is this some sort of mod that is done and are the holes anything to be concerned about? Why were they drilled?
Is this some sort of mod that is done and are the holes anything to be concerned about? Why were they drilled?
05-21-2016, 09:36 PM
#2
I purchased a used 99-02 F-Body Racetronix RXP255 Fuel Pump Assembly with Racetronix Fuel Pump Wiring Kit (Hot wire kit) PN:FPA-001B & FPWK-017W and the plastic fill bucket was included with the fuel pump already setup inside the bucket. The plastic fill bucket has 3 holes drilled into the bottom of it, so mounting a fuel sock on the outside is out of the question. Is this some sort of mod that is done and are the holes anything to be concerned about? Why were they drilled?
The Venturi is that little straw tube coming out of the top of the stock pump and going through to the bottom of the bucket, it's designed to suck fuel up and fill the plastic bucket and keep it full so the pump is always submerged.. Even if the gas is close to being empty in the tank..
When you use some aftermarket pumps they don't have that feature and you basically have to drill holes in the plastic bucket so fuel can get in to the pump.
So sounds like someone had a non Venturi pump in that bucket at some point
05-21-2016, 09:41 PM
#3
You usually do that drill mod when using a non "Venturi" fuel pump.
The Venturi is that little straw tube coming out of the top of the stock pump and going through to the bottom of the bucket, it's designed to suck fuel up and fill the plastic bucket and keep it full so the pump is always submerged.. Even if the gas is close to being empty in the tank..
When you use some aftermarket pumps they don't have that feature and you basically have to drill holes in the plastic bucket so fuel can get in to the pump.
So sounds like someone had a non Venturi pump in that bucket at some point
The Venturi is that little straw tube coming out of the top of the stock pump and going through to the bottom of the bucket, it's designed to suck fuel up and fill the plastic bucket and keep it full so the pump is always submerged.. Even if the gas is close to being empty in the tank..
When you use some aftermarket pumps they don't have that feature and you basically have to drill holes in the plastic bucket so fuel can get in to the pump.
So sounds like someone had a non Venturi pump in that bucket at some point
05-21-2016, 10:20 PM
#6
It's just a factory design so the pump doesn't get starved for fuel when high speed cornering or running the tank down past Empty..
If your going to run it in that bucket I would drill some more holes at least around the whole bucket side walls..
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05-21-2016, 10:39 PM
#9
http://www.ws6project.com/user_stor/...ank-fuel-pump/
The biggest problem with LS1 installations is the factory bucket that the pump resides in. It is equipped with a "Jet Pump" that keeps the bucket full and the pump submerged when the fuel level is low. Typically when this style of pump is installed, holes are drilled in the bucket to keep it full since there is no way to connect the jet pump. When this is done the jet pump is disabled, pump performace is greatly diminished, the tank will not empty properly and there is a good chance of sucking air into the system. There is now an intank solution with the proper connection so that the jet pump can be connected and proper factory intended pump operation can be restored.
05-21-2016, 10:57 PM
#12
Which means when the fuel level goes below the top of that bucket then the pump inside is not being fed any fuel via the Venturi which is supposed to keep pumping fuel into that little bucket..
Pretend your floating in a sea of fuel on a raft, and you are a fuel pump.. Your in the raft and can't get any fuel, so the Venturi sucks fuel from the sea via a straw tube and fills the raft up so you can drink
05-21-2016, 11:01 PM
#14
"They" think you are going to put the walbro 255 (non Venturi) back into the bucket and go drive.
Which means when the fuel level goes below the top of that bucket then the pump inside is not being fed any fuel via the Venturi which is supposed to keep pumping fuel into that little bucket..
Pretend your floating in a sea of fuel on a raft, and you are a fuel pump.. Your in the raft and can't get any fuel, so the Venturi sucks fuel from the sea via a straw tube and fills the raft up so you can drink
Which means when the fuel level goes below the top of that bucket then the pump inside is not being fed any fuel via the Venturi which is supposed to keep pumping fuel into that little bucket..
Pretend your floating in a sea of fuel on a raft, and you are a fuel pump.. Your in the raft and can't get any fuel, so the Venturi sucks fuel from the sea via a straw tube and fills the raft up so you can drink
05-21-2016, 11:05 PM
#15
However every fbody guy who swaps to a non OEM pump deletes Venturi and does just fine.
There's numerous cars on here that do it..
You should be fine, I would just drill 5-10 more holes just so it will allow more fuel in
05-23-2016, 06:28 AM
#17
Sorry to interrupt, but the venturi is not the only way the bucket is filled. The return line feeds down into the bottom of the bucket. With not venturi hooked up, the pump is still submerged. And with the holes in the bottom rather than the side, it allows the pump to be submerged while not suffering from lateral fuel sloshing as bad.
You're fine to use that bucket.
You're fine to use that bucket.