Racetronix pump emptying fuel bucket?
#21
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He knew what he was talking about. You were incorrect and resort to cursing him out about it. How is there any discussion about that?
I have seen many issues with fuel pump installs and fixed them and answered many tech calls about them also. The first course of action is not blame the customer though nor bring their technical knowledge into question. Verify the part is operating correctly first. Insulting them or cursing at them doesnt help. Since you did not know how the module works it went downhill from there. You do now it seems, but hind sight is always 20/20 i guess.
I have seen many issues with fuel pump installs and fixed them and answered many tech calls about them also. The first course of action is not blame the customer though nor bring their technical knowledge into question. Verify the part is operating correctly first. Insulting them or cursing at them doesnt help. Since you did not know how the module works it went downhill from there. You do now it seems, but hind sight is always 20/20 i guess.
#22
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To set the record straight here the outlet port of the module must be looped back into the return for this test to work.
The venturi will not function unless the fuel pressure is close to the integral regulator's factory pressure set point of 58PSI. The venturi system has a finite replenishment capacity so much of the return fuel must be reintroduced back into the bucket.
If the fuel volume exiting the bucket exceeds the combined volume of the return fuel + venturi/jet system + equalization check-valve the bucket will be sucked dry.
This is why people who use external regulators and set the fuel pressure too low or have motors which demand too much fuel will suck the bucket dry.
Customers have also been know to have:
- Leaks in the module's fuel tube
- Leaks in the regulator housing (properly seated)
- Fuel returned external to the bucket (not routed through factory regulator which passes through leg of module and back into the bucket)
The venturi will not function unless the fuel pressure is close to the integral regulator's factory pressure set point of 58PSI. The venturi system has a finite replenishment capacity so much of the return fuel must be reintroduced back into the bucket.
If the fuel volume exiting the bucket exceeds the combined volume of the return fuel + venturi/jet system + equalization check-valve the bucket will be sucked dry.
This is why people who use external regulators and set the fuel pressure too low or have motors which demand too much fuel will suck the bucket dry.
Customers have also been know to have:
- Leaks in the module's fuel tube
- Leaks in the regulator housing (properly seated)
- Fuel returned external to the bucket (not routed through factory regulator which passes through leg of module and back into the bucket)
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#24
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Outlet - T - Module return port - integral regulator - bucket
----------L - rail feed (engine)
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#26
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Reason I asked was I'm plumbing my car with -8 for e85 and noticed the t fitting under the car and knew it was a return loop, however my new fpr has the return outlet actually on it. So I was just mentally comparing the two variations of the same type system.
#27
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If you are using E85, do not use any of the factory lines or fittings.
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#28
Thanks for the info WS6Store and Racetronix! BTW, I found this other thread that has a cutaway of the fuel bucket for reference: https://ls1tech.com/forums/fueling-i...placement.html
#31
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The venturi will not work with out sufficient backpressure on the system.
In a free flow situation like shown, the bucket will empty.
If you hold 58psi with a regulator & pump from the return of the regulator the venturi should work.
Also putting a pump in a bucket of fuel like shown is a good way to get an ambulance ride.
One spark from the alligator clip & you have a big fire on your hands.
In a free flow situation like shown, the bucket will empty.
If you hold 58psi with a regulator & pump from the return of the regulator the venturi should work.
Also putting a pump in a bucket of fuel like shown is a good way to get an ambulance ride.
One spark from the alligator clip & you have a big fire on your hands.
#32
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Adding a loop of fuel hose provides the restriction ie the regulator. Plus returns the fuel back to the module as well. (He added the loop later upon us telling him to like racetronix said as well just did not video, same results)
Liquid fuel doesnt burn or combust the fumes/vapor will of course, so they should be safe on that end, but always do it in an open area of course or with proper ventilation and make sure your leads are long enough and connect it to the battery side if just touching wires to the terminal. Also make sure to use a fused jumper to prevent damage to the pump.
It may be somewhat "redneck" or shade tree style, but short of cutting a trap door in the fuel tank, is really the only option.
We do offer cheap pigtails as do most local auto part stores so you are not stuck with using alligator clips inside the connector to make the connections and possibly cause an issue.
Liquid fuel doesnt burn or combust the fumes/vapor will of course, so they should be safe on that end, but always do it in an open area of course or with proper ventilation and make sure your leads are long enough and connect it to the battery side if just touching wires to the terminal. Also make sure to use a fused jumper to prevent damage to the pump.
It may be somewhat "redneck" or shade tree style, but short of cutting a trap door in the fuel tank, is really the only option.
We do offer cheap pigtails as do most local auto part stores so you are not stuck with using alligator clips inside the connector to make the connections and possibly cause an issue.
#33
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The liquid fuel would not burn, but an open bucket of gas surely would because of the massive amount of fumes that would be radiating off of it. Gas is a funny thing, you can put a cig out in the liquid but one live spark and boom, a small amount of gas can cause reverbs that you can feel in your chest. Pretty amazing and dangerous stuff.
#34
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