EFI fuel tank questions

[lostforawhile]

have questions about the 89 lxi fuel tank,I am converting to one due to the bottom outlet designed for a seperate pump, my in tank pump will not work for my carb setup. does the sender unit assembly fit the lxi tank? and is the two way valve from the lxi tank the same as on a dx? what kind of outlet connection does the lxi tank have? is it a threaded outlet? or is it only threaded fittings after the pump? where does the return line connect on the lxi? is it connected to the two way valve? if i have a return line,i can use a much more precise fuel pressure regulator for the carb, vs. the non return one i have now. I'm going to buy a brand new tank from Carolina autobody supply house for 130 bucks.

[ghettogeddy]

have questions about the 89 lxi fuel tank,I am converting to one due to the bottom outlet designed for a seperate pump, my in tank pump will not work for my carb setup. does the sender unit assembly fit the lxi tank? and is the two way valve from the lxi tank the same as on a dx? what kind of outlet connection does the lxi tank have? is it a threaded outlet? or is it only threaded fittings after the pump? where does the return line connect on the lxi? is it connected to the two way valve? if i have a return line,i can use a much more precise fuel pressure regulator for the carb, vs. the non return one i have now. I'm going to buy a brand new tank from Carolina autobody supply house for 130 bucks.

is that 130 shipped i need to get one to

[lostforawhile]

is that 130 shipped i need to get one to

i think it was,they had a paper on the counter at Oreilies and i was looking through it. they can order stuff from them here. I'm pretty sure they are on the internet also. he called and got a price quote from them.

[Estimated Prophet]

This one is $130 shipped:

http://cgi.ebay.com/ebaymotors/86-87...QQcmdZViewItem

[lostforawhile]

according(no pun intended) to that picture,thats a two hole outhouse too. according to my book,the lxi pump is under the car with an output on the corner of the tank. if thats true what is the extra hole for. I'm farmiliar with carbed cars. not LXIs. which version is correct here.

[Estimated Prophet]

The other hole is the sending unit, no? The other is the pump on top is my impression. That's how 99% of the Honda tanks on the yard at work are like.

[lostforawhile]

according to my book, the efi has a high pressure underbody pump and the carb of course has the pump in the tank. I know people have to switch the tanks to go to EFI,if they were the same I would think you could just drop an efi pump in the tank. the reason i need the one for under the car,fuel pumps are designed to push fuel,not pull it up and out of the tank, an inline pump is not designed to lift fuel,just push it forward. you need a gravity feed to the inlet of an inline pump.

[LX-incredible]

according(no pun intended) to that picture,thats a two hole outhouse too. according to my book,the lxi pump is under the car with an output on the corner of the tank. if thats true what is the extra hole for. I'm farmiliar with carbed cars. not LXIs. which version is correct here.

86-89 LX-i have an in-tank pump. The other hole is for the fuel gauge sending unit. There is a threaded drain plug in the bottom of the tank, but it probably is a bad idea to pull fuel from there.

[LX-incredible]

according to my book, the efi has a high pressure underbody pump and the carb of course has the pump in the tank. I know people have to switch the tanks to go to EFI,if they were the same I would think you could just drop an efi pump in the tank. the reason i need the one for under the car,fuel pumps are designed to push fuel,not pull it up and out of the tank, an inline pump is not designed to lift fuel,just push it forward. you need a gravity feed to the inlet of an inline pump.

Earlier Accords and Preludes had the external fuel pump.

[lostforawhile]

86-89 LX-i have an in-tank pump. The other hole is for the fuel gauge sending unit. There is a threaded drain plug in the bottom of the tank, but it probably is a bad idea to pull fuel from there.

i guess i could order a new dx tank,then since it's never had fuel in it, weld a bung on the lower portion of the tank,nobody will of course weld on a tank that has been used,but i don't see a problem with a new tank. they can't even have fuel vapor in them to ship,they use something that is like an oil to pressure check them. if i weld a steel an fitting on the tank,i could reach inside the tank and screw a pickup line on the other end of it with a mesh filter. then with a couple of check valves the original pump becomes an emergency backup pump. for the record at least on the hatch,the underbody pump mounting location is there , theres even a piece of metal fuel line in between two rubber lines where the pump would sit.

[lostforawhile]

Finally a solution!!! I was looking for the old pumps they used to use on brittish cars for the SUs. they used to say AC on the pumps,on MGs,Austin Healys etc. the old pump that used to go click....click....click...click... when you were driving. they are an on demand pump for carbed cars, they are made by Walboro pumps,they discontinued the old 2000 series versions of them,but they have upgraded the design. these pumps have a 48 inch capable dry lift to the pump, that means they can pull fuel out of the tank and then down to the pump. they have a continuos run version,and an intermittent run,that means it pumps on demand. these are designed for carbed vechicals and are a perfect match for our carbs and fuel system. all you have to do is mount the pump,take the original pump off the hanger,replace it with a pickup and some sort of screening,i would say take a filter off of a needle valve from an old carb. you would probably have to run a seperate circuit for the power,just use the existing circuit to power a relay so the safety system functions right. here is a link
http://www.autoperformanceengineerin.../fr_pumps.html

[ghettogeddy]

so no new tank but a in line pump

[lostforawhile]

so no new tank but a in line pump

yep,i have contacted countless people trying to find an inline pump that could lift fuel out of the tank,everyone told me there was no such thing,it would burn up the pump,etc. i had just about given up,as far as i know this is the only company on earth that makes a dry lift capable fuel pump, that is suitable for carbed cars. I have been searching for years,I deceided to google walboro,since we use their pumps on our airplanes. and there it was.

[Estimated Prophet]

The plot thickens. Way to go.

[ghettogeddy]

yep,i have contacted countless people trying to find an inline pump that could lift fuel out of the tank,everyone told me there was no such thing,it would burn up the pump,etc. i had just about given up,as far as i know this is the only company on earth that makes a dry lift capable fuel pump, that is suitable for carbed cars. I have been searching for years,I deceided to google walboro,since we use their pumps on our airplanes. and there it was.

hhahahah refer to my quote in your sig lol

[lostforawhile]

oh russiankid,they have your fuel check valve,it says coming soon on the site.

[MessyHonda]

wee problem solved. dont carbs only need like 3-6 psi to run?

[stereo]

Finally a solution!!! I was looking for the old pumps they used to use on brittish cars for the SUs. they used to say AC on the pumps,on MGs,Austin Healys etc. the old pump that used to go click....click....click...click... when you were driving. they are an on demand pump for carbed cars, they are made by Walboro pumps,they discontinued the old 2000 series versions of them,but they have upgraded the design. these pumps have a 48 inch capable dry lift to the pump, that means they can pull fuel out of the tank and then down to the pump. they have a continuos run version,and an intermittent run,that means it pumps on demand. these are designed for carbed vechicals and are a perfect match for our carbs and fuel system. all you have to do is mount the pump,take the original pump off the hanger,replace it with a pickup and some sort of screening,i would say take a filter off of a needle valve from an old carb. you would probably have to run a seperate circuit for the power,just use the existing circuit to power a relay so the safety system functions right. here is a link
http://www.autoperformanceengineerin.../fr_pumps.html

i'm suprised you didn't just use a 2ng gen point type in or 83-87 prelude carb. inline fuel pump .

[lostforawhile]

wee problem solved. dont carbs only need like 3-6 psi to run?

these su's only need 2 psi,the main thing they need is enough volume to keep two fuel bowls filled. there are enough choices in the walbro pumps to make this setup work fine. i will just pick a pump with more demand then i need,then i won't have to worry about high rpm fuel starvation. pressure isn't an issue,i already have the special holley low pressure fuel regulator installed on my engine. it adjusts from 1 to 5 psi. i will probably also go with the 7 psi pump since it's already regulated down,then i don't have a pressure drop problem.

[lostforawhile]

i'm suprised you didn't just use a 2ng gen point type in or 83-87 prelude carb. inline fuel pump .

the factory pumps won't be able to keep up with demand is why,these Su's are the equivilent to two DCOE 38mm webber sidedrafts,except that they can flow a lot more volume then the webbers,mainly due to their construction,they don't have nearly the internal restriction of the webbers. besides the factory pumps are designed to allow gravity flow to the pump,the fuel tank outlet is on the side or botom of the tank.in the accord it's in the top of the tank. you need a self priming pump like the walbro to make this setup work.

[russiankid]

oh russiankid,they have your fuel check valve,it says coming soon on the site.

That is good to know. My pump finally gave out so i replaced it, but fuel still drains back.