for everyone who did a carb swap on thier EFI i need some help fuel for delivery
#1
for everyone who did a carb swap on thier EFI i need some help fuel for delivery
yeah i got the whole plumbing kit from summit..complete with pump filters connections and all. all i need to know is..
how do i put it to get fuel from the tank??
i was thinking about leaving the complete thing that goes in the tank where the fuel guage gets its reading. and remove the pump and the small filter underneath then just tap into the original fuel lines above the tank to the pump..
how did u do it ??
how do i put it to get fuel from the tank??
i was thinking about leaving the complete thing that goes in the tank where the fuel guage gets its reading. and remove the pump and the small filter underneath then just tap into the original fuel lines above the tank to the pump..
how did u do it ??
#2
hate to tell you.......i used my original pumps intank and high pressure one on the frame rail and ran a bypass fuel pressure regulator then ran a 3/8ths return line to my fuel tank (the stock one isn't big enough) if you don't think your intank pump is big enough get a booster pump by msd and i would return the fuel system plumbing kit to summit
#3
66TBird
How did you know you had a problem with the size of the return line? I did the carb/efi swap on an 89 Mustang 302 and the adjustable fuel regulator I installed dialed the fuel down enough (I thought) but I could never get the carb. adjusted right. I did reuse the factory return line and maybe that was my problem. Everyone said to install a new pump for better control but I sold the car before I got a chance to swap it out. My buddy bought it so I would like to pass on the info.
DJdemon6696
On the mustang swap I used the exsiting lines, I cut them and put on hose with hose clamps. DO NOT DO THIS. I didnt have any leaks but summit has some nice options for tieing into Ford fuel line fittings. They have adapters to AN fittings that I found after I did my swap. If you ever want to go back nothing is destroyed. I have always found no matter what you do the person buying your vechicle would have wanted it the "other" way. On the Mustang swap I did not permanatly change anything except that line to enable a reverse swap. I kept every part and the guy who bought it appreciated that.
How did you know you had a problem with the size of the return line? I did the carb/efi swap on an 89 Mustang 302 and the adjustable fuel regulator I installed dialed the fuel down enough (I thought) but I could never get the carb. adjusted right. I did reuse the factory return line and maybe that was my problem. Everyone said to install a new pump for better control but I sold the car before I got a chance to swap it out. My buddy bought it so I would like to pass on the info.
DJdemon6696
On the mustang swap I used the exsiting lines, I cut them and put on hose with hose clamps. DO NOT DO THIS. I didnt have any leaks but summit has some nice options for tieing into Ford fuel line fittings. They have adapters to AN fittings that I found after I did my swap. If you ever want to go back nothing is destroyed. I have always found no matter what you do the person buying your vechicle would have wanted it the "other" way. On the Mustang swap I did not permanatly change anything except that line to enable a reverse swap. I kept every part and the guy who bought it appreciated that.
#4
66TBird
How did you know you had a problem with the size of the return line? I did the carb/efi swap on an 89 Mustang 302 and the adjustable fuel regulator I installed dialed the fuel down enough (I thought) but I could never get the carb. adjusted right. I did reuse the factory return line and maybe that was my problem. Everyone said to install a new pump for better control but I sold the car before I got a chance to swap it out. My buddy bought it so I would like to pass on the info.
DJdemon6696
On the mustang swap I used the exsiting lines, I cut them and put on hose with hose clamps. DO NOT DO THIS. I didnt have any leaks but summit has some nice options for tieing into Ford fuel line fittings. They have adapters to AN fittings that I found after I did my swap. If you ever want to go back nothing is destroyed. I have always found no matter what you do the person buying your vechicle would have wanted it the "other" way. On the Mustang swap I did not permanatly change anything except that line to enable a reverse swap. I kept every part and the guy who bought it appreciated that.
How did you know you had a problem with the size of the return line? I did the carb/efi swap on an 89 Mustang 302 and the adjustable fuel regulator I installed dialed the fuel down enough (I thought) but I could never get the carb. adjusted right. I did reuse the factory return line and maybe that was my problem. Everyone said to install a new pump for better control but I sold the car before I got a chance to swap it out. My buddy bought it so I would like to pass on the info.
DJdemon6696
On the mustang swap I used the exsiting lines, I cut them and put on hose with hose clamps. DO NOT DO THIS. I didnt have any leaks but summit has some nice options for tieing into Ford fuel line fittings. They have adapters to AN fittings that I found after I did my swap. If you ever want to go back nothing is destroyed. I have always found no matter what you do the person buying your vechicle would have wanted it the "other" way. On the Mustang swap I did not permanatly change anything except that line to enable a reverse swap. I kept every part and the guy who bought it appreciated that.
#5
#6
i have no idea if you could use the stock pick up in the tank
and my buddy does a lot of 5.0 mustang carb swaps and he told me you'll never get it to run right if you don't use a 3/8ths return line or -6an so i just trusted his knowledge and my stuff runs pretty good no problems at all
and my buddy does a lot of 5.0 mustang carb swaps and he told me you'll never get it to run right if you don't use a 3/8ths return line or -6an so i just trusted his knowledge and my stuff runs pretty good no problems at all
here can you see the new fuel line and pumps and filter still in thier boxes
#7
Trending Topics
#8
I hope I don't get banned but here is a link to one of the threads. This forum helped a lot with my Mustang. The PO did terrible electric work and I found a lot of answers.
efi to carb swap - Mustang Forums at StangNet
Mods forgive me but there is some very good info and I have no interest at all in that site... I promise.
efi to carb swap - Mustang Forums at StangNet
Mods forgive me but there is some very good info and I have no interest at all in that site... I promise.
#10
Cool, I dont know the rules here but in 4X4 they talk about the mods like monsters.
Back to tech talk. When I did the swap on the mustang I also swaped the dist. and ignition not that that matters.
I dont understand, if I installed a fuel pressure regulator with a return how it would bottle neck at the return line and still read proper at the gauge. I am not doubting Tbird because I did have problems with tuning the car. Is it possible that the regulator would not bleed off fast enough creating back pressure in the supply line?
The more I think about it, it sounds possible.
Theres got to be somebody that has run into this.
Back to tech talk. When I did the swap on the mustang I also swaped the dist. and ignition not that that matters.
I dont understand, if I installed a fuel pressure regulator with a return how it would bottle neck at the return line and still read proper at the gauge. I am not doubting Tbird because I did have problems with tuning the car. Is it possible that the regulator would not bleed off fast enough creating back pressure in the supply line?
The more I think about it, it sounds possible.
Theres got to be somebody that has run into this.
#11
wow thanks..
this is what i needed
If you try to use your current tank, you will need to pull the fuel pump out and fabricate a pickup tube & strainer sock to replace the fuel pump. Or you can have a sump fabricated and welded onto you existing tank. Many welding shops will not weld fuel tanks because of the dangers involved if the tank isn't purged properly.
here is an idea
i have to make something like this no prob at all
its the kit from summit
Summit SUM-PUMPKIT8A - Summit® Complete Fuel System Kits
and here is the combo for my ignition
PerTronix COMBOSBFB - PerTronix Complete Ignition System Packages
this is what i needed
If you try to use your current tank, you will need to pull the fuel pump out and fabricate a pickup tube & strainer sock to replace the fuel pump. Or you can have a sump fabricated and welded onto you existing tank. Many welding shops will not weld fuel tanks because of the dangers involved if the tank isn't purged properly.
here is an idea
i have to make something like this no prob at all
its the kit from summit
Summit SUM-PUMPKIT8A - Summit® Complete Fuel System Kits
and here is the combo for my ignition
PerTronix COMBOSBFB - PerTronix Complete Ignition System Packages
#12
honestly i have no idea to me it sounds like it should have worked, how good are you at tuning carbs? and did you ever try putting a good known carb on it, that's one thing about carbs sometimes they just will never work right for unknown reasons but if you put another carb on that is exactly the same it will run fine
#13
honestly i have no idea to me it sounds like it should have worked, how good are you at tuning carbs? and did you ever try putting a good known carb on it, that's one thing about carbs sometimes they just will never work right for unknown reasons but if you put another carb on that is exactly the same it will run fine
#14
honestly i have no idea to me it sounds like it should have worked, how good are you at tuning carbs? and did you ever try putting a good known carb on it, that's one thing about carbs sometimes they just will never work right for unknown reasons but if you put another carb on that is exactly the same it will run fine
#15
HAHAHA that's why it didn't run right it's an edelbrock carb hahaha i have NEVER had good luck with them they never run right, you get the idle good and it goes lean on the top end you richen it up and it goes lean on the bottom end or part throttle never had a problem with a holley though, although demons i have had problems of metal shavings being in the float bowls, quickflow makes a good carb and they will custom build it to bolt on and go when you give the specs of your motor
and by the way i'm only 20 as well so no excuse haha
and by the way i'm only 20 as well so no excuse haha