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  #1  
Old 04-17-2016, 11:23 AM
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blazer3664 blazer3664 is offline
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can I run tbi fuel pump with carb short term ??

Just found out my mechanical pump is shot. Getting ready for TBI swap in a couple weeks anyway, so I dont really want to buy a new mechanical pump. Would like to keep it drive-able though.

With the stock type fuel filter having the return line there, will it flow enough to let me run the electric pump short term? Will the float in the Edelbrock I have be capable of running with that pump ?

I have everything to put the electric pump in right now. Using #E2182 for 1989 Ford Crown Victoria 5.0L FI 8cyl, mounted behind the original tank on the frame because I have another tank (dual tanks)for the rear. I just dont have enough time to do the rest of the TBI swap for about 2 weeks.

Is there a cheap inline pump that would work if I do the fuel lines up for my TBI and just use a different pump for a bit?

Thanks,
Jim
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  #2  
Old 04-17-2016, 12:06 PM
joe joe is offline
 
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Don't know how much pressure a TBI requires but FI pumps are generally a lot higher pressure (20-30 PSI??). Find out what your elec pump is rated at and then decide. Most carbs are designed to be fed at about 4-6 PSI. Much more than that and you'll need to run a pressure regulator. For temporary and cheap and temporary being subjective. I used to keep a cheap generic China elec pump in my glove box just in case. It was in the cheap HELP section at Napa. About the size of a credit card and 3/4-1 inch thick? Had to use it when the mech pump failed in the woods. Ran it for a couple days till I got a new pump. It fed a 1405 Edelbrock on a AMC 360 ok for a couple days anyway. I think it was about $20 10 years or so ago? You might get a couple weeks use out of one but I'm not guaranteeing that.
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Old 04-17-2016, 12:35 PM
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No chance an unregulated TBI fuel pump will flood that thing out in seconds.
It'll put out like 90psi.

Stock mechanical pump is like $15-$20, just replace it, or do the TBI swap sooner.
Cheapish universal LOW psi electric pumps are ~$40.
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Old 04-18-2016, 07:39 AM
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Tripwire Tripwire is offline
hey,does anyone here know how to.......
 
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Like tony said....

I would go with a temporary electrical one, you can always reutilize it as a fluid transfer pump later on
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Old 04-18-2016, 10:16 AM
wiley-moeracing wiley-moeracing is offline
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a tbi system would need 15lbs of fuel pressure to run, the pump you are running is for mpi system and would produce 35-50 psi. if you use the correct pump for tbi it can be regulated down to 7 psi to run your carb with an inexpensive store bought regulator then you have the need time to drive till your ready.
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Old 04-18-2016, 10:27 AM
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Quote:
Originally Posted by wiley-moeracing
a tbi system would need 15lbs of fuel pressure to run, the pump you are running is for mpi system and would produce 35-50 psi. if you use the correct pump for tbi it can be regulated down to 7 psi to run your carb with an inexpensive store bought regulator then you have the need time to drive till your ready.

The pump he listed above works fine for TBI, the throttle body has a regulator inside the fuel pod.
There is more to it than just dropping the pressure, a TBI pump will also flow way more than a stock mechanical pump, even at low psi.
Using one on a carb'd vehicle is a bad idea.
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Old 04-18-2016, 01:09 PM
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blazer3664 blazer3664 is offline
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Thanks for the info guys. Might just see if I can get the TBI in next weekend


Jim
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modified flares, removable top, OBA w/200psi tank,
LQ4, 4L80e,NWF doubler w/upside down 203
SOA w/ D44s F+R for now
H1 wheels+tires (cut), hydroboost brakes
custom shackle flip
W/F150 springs
-----Coming Soon-----
snorkels,
OX'd D60/14B-FF
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  #8  
Old 05-31-2016, 02:37 PM
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Gulrok Gulrok is offline
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Fuel pressure regulator with a return line off of the fuel filter may work for what you're looking for.
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  #9  
Old 06-01-2016, 05:13 PM
Nikkormat Nikkormat is offline
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Replacing the stock mechanical is easy and cheap. That's what I would do if I were you.

I couldn't make the E2000 work with my Edelbrock without the stock pump. I had the E2000 circulating fuel through the lines and the mechanical pump drawing from the lines through a tee. If any pressure builds up in the return line it will flood and flood bad. Like hydrolock the engine bad.
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Old 06-13-2016, 06:24 PM
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serehill serehill is offline
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Have to agree

Just sticking the TBI in would be the deal.
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