Hey guys I've seen several forums with pros and cons for ditching EFI for a carb...well,I bought a 94 XLT that had the 302 replaced with a 351W...it had also been swapped over..it has a 4bbl and distributor...it came running just off the rear fuel tank with just a hose sticking in it and a weak fuel pump,so I ordered two in tank fuel pumps,modified them by removing the pumps motors so they gauges would work,and installed an inline fuel pump and actuator to switch between tanks... I also had to disconnect the existing fuel lines with the tank return...but now I'm pushing too much fuel to the carb....is there a way to install a manual fuel pump on the engine itself like the oldies? If so,I'd be in perfect shape...thanks!!
ABR3
Would need a different timing cover that has the opening and mounting holes for it.
Would also need to make sure the cam has the eccentric to drive the fuel pump too.
I am not sure if the serpintine belt setup (if yours still has it) will work with the mechanical pump timing cover and water pump combo.
They are expensive, but Aeromotive makes an EFI pressure down to Carb pressure regualtor assembly, its kind of 2 in one. This would be far easier then doing all the above. Could have left the tank side stock with this setup as it would utilize the returns too.
For your setup you maybe able to just use a normal carb, fuel pressure regulator (that doesn't use a return) Depends on the pressure you are putting up the the carb with your in-line pump.
Would also need to make sure the cam has the eccentric to drive the fuel pump too.
I am not sure if the serpintine belt setup (if yours still has it) will work with the mechanical pump timing cover and water pump combo.
They are expensive, but Aeromotive makes an EFI pressure down to Carb pressure regualtor assembly, its kind of 2 in one. This would be far easier then doing all the above. Could have left the tank side stock with this setup as it would utilize the returns too.
For your setup you maybe able to just use a normal carb, fuel pressure regulator (that doesn't use a return) Depends on the pressure you are putting up the the carb with your in-line pump.
Yo ABR,
WELCOME!
We have quite a few F series owners here.
An line adjustable pump is best.
Fuel pressure to the carburetor will range from 4 psi to 7 psi, with some vehicles using higher pressure. Using the wrong pump that delivers excess pressure can cause problems ranging from poor performance and lower gas mileage to flooding and carburetor damage.
Or, see Feeding a Carbureted Engine with an EFI Fuel Pump @ Feeding a Carbureted Engine with an EFI Fuel Pump
Excerpt, " diagram below outlines how the fuel lines can be ran using a bypass regulator on a carbureted application.
Please note that it is important to have a large return line so no back pressure is created."
ASAP, find out if speed control recall work, if equipped was completed. If you still have concerns about Recalls, please contact the Ford Customer Relationship Center:
US: 800-392-3673 | CA: 800-565-3673
Note: 3673 spells "FORD" on phone keys
For the hearing- or speech-impaired: Please contact the Telecommunication Relay Service by dialing 71
... have VIN ready.
"Summary: ON CERTAIN PICKUP TRUCKS, PASSENGER VEHICLES, SPORT UTILITY VEHICLES, AND MOTOR HOMES CHASSIS, THE SPEED CONTROL DEACTIVATION SWITCH MAY, UNDER CERTAIN CONDITIONS, LEAK INTERNALLY AND THEN OVERHEAT, SMOKE, OR BURN. THIS COULD RESULT IN AN UNDERHOOD FIRE."
See this guide by jowens1126 to confirm recall status @ 93 & 94-96 Cruise Control Recalls Repair
Note that the 93 recall is different than 94-96.
1994 Dealer Brochure by Ford via Dezo's Garage @ https://www.xr793.com/wp-content/uploads/2019/04/1994-Ford-F-Series.pdf
Haynes Red Manual for 80-95 Bronco & F Series @ Hanes guide 80-96 bko f series.pdf
For any questions or to chat about it's planned modifications or build, it's better to post each seperately in Noobie Bronco Tech Questions. Flame free zone. This will get more attention and you can build up your post count to get into other sections such as Bronco and Ford Parts/Accessories (50 posts required to view).
Our Forum FAQs includes for example; How To Upload Images To Posts, How to Use Search and How to Establish Your Signature and more tips!
➡See Baba Looey's Favorite FSB Links (lots and lots of tech links) ...
Try to find time to participate and VOTE in our next Full-Size of the Month & later in the year, Full-Size of the Year Contest @ Voting
You will get ideas by those competing. Also see the prizes! They are awesome as compared to other sites' "contests"!
Al
WELCOME!
We have quite a few F series owners here.
An line adjustable pump is best.
Fuel pressure to the carburetor will range from 4 psi to 7 psi, with some vehicles using higher pressure. Using the wrong pump that delivers excess pressure can cause problems ranging from poor performance and lower gas mileage to flooding and carburetor damage.
Or, see Feeding a Carbureted Engine with an EFI Fuel Pump @ Feeding a Carbureted Engine with an EFI Fuel Pump
Excerpt, " diagram below outlines how the fuel lines can be ran using a bypass regulator on a carbureted application.
Please note that it is important to have a large return line so no back pressure is created."
ASAP, find out if speed control recall work, if equipped was completed. If you still have concerns about Recalls, please contact the Ford Customer Relationship Center:
US: 800-392-3673 | CA: 800-565-3673
Note: 3673 spells "FORD" on phone keys
For the hearing- or speech-impaired: Please contact the Telecommunication Relay Service by dialing 71
... have VIN ready.
"Summary: ON CERTAIN PICKUP TRUCKS, PASSENGER VEHICLES, SPORT UTILITY VEHICLES, AND MOTOR HOMES CHASSIS, THE SPEED CONTROL DEACTIVATION SWITCH MAY, UNDER CERTAIN CONDITIONS, LEAK INTERNALLY AND THEN OVERHEAT, SMOKE, OR BURN. THIS COULD RESULT IN AN UNDERHOOD FIRE."
See this guide by jowens1126 to confirm recall status @ 93 & 94-96 Cruise Control Recalls Repair
Note that the 93 recall is different than 94-96.
1994 Dealer Brochure by Ford via Dezo's Garage @ https://www.xr793.com/wp-content/uploads/2019/04/1994-Ford-F-Series.pdf
Haynes Red Manual for 80-95 Bronco & F Series @ Hanes guide 80-96 bko f series.pdf
For any questions or to chat about it's planned modifications or build, it's better to post each seperately in Noobie Bronco Tech Questions. Flame free zone. This will get more attention and you can build up your post count to get into other sections such as Bronco and Ford Parts/Accessories (50 posts required to view).
Our Forum FAQs includes for example; How To Upload Images To Posts, How to Use Search and How to Establish Your Signature and more tips!
➡See Baba Looey's Favorite FSB Links (lots and lots of tech links) ...
Try to find time to participate and VOTE in our next Full-Size of the Month & later in the year, Full-Size of the Year Contest @ Voting
You will get ideas by those competing. Also see the prizes! They are awesome as compared to other sites' "contests"!
Al
Well,the EFI to carb pressure is a no go because I've (well,we've,me and my sons) have converted the inline pumps just to pick up and for gauges and I've removed the fuel lines... I live in the northeast Georgia mountains so I need to keep the fuel up to climb hills....if I install an inline regulator will it allow extra fuel for pulling hills? That was the issue when I bought it...the fuel pump didn't supply enough but for a straightaway...
The regulator will cut the pressure down going to the carb. Doing it this way, will make the carb have very consistent pressure so should help, as it takes a higher pressure down to a lower one. I have ran my 78 like this for a very long time, with a high flow mechanical pump. The fuel pump and pressure do not really have any impact on how the truck runs, assuming it has enough to keep the bowls full on the carb.
If your getting fuel starvation issues on hills, you may need to look into doing a hydramat or the like in the tank itself or going to a tank that is sumped.
If your getting fuel starvation issues on hills, you may need to look into doing a hydramat or the like in the tank itself or going to a tank that is sumped.
How about this...if I start over with a new inline pump and regulator,what gpm and pressure would you recommend? Keep on mind I had to install an actuator with 5/16 lines to swap between tanks...
I had a Avs 2 carb on my 87 and I used the stock pump because originally the EFI systems had a low pressure and high pressure pump. It worked great and I live in northeast Georgia not quite the mountains, I’m like 1-1.5 from mountains. But it did fine when I’ve been up there. Now I have a Holley sniper and have been having problems with that. But you should be fine with just a regulator. I have a earls one if you need it.
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