Topic: efi gas tank for first gen? air in gas?

[toyodaaddict]

i need help, im running a 22re in my first gen pickup and im sucking air with my fuel when i get down to the last 5 gal. iv got the stock carbed tank modified to use the electric efi pump but it doesnt have the pan that holds gas around the fuel pump, i think this is my problem. is there a efi tank that is a bolt in swap for a first gen short bed? any suggestions? 8 gal. of usable gas is getting old

[toyyota]

I used a 91 regular cab efi tank. It bolted right in.

[toyodaaddict [OP]]

I used a 91 regular cab efi tank. It bolted right in.

91 regular cab 4x4, im assuming?
 im surprised no one else has had trouble with carbed tanks and efi, guess im just special

[toyodaaddict [OP]]

i read that the 79 trucks used electric fuel pumps and there tanks will  except the later efi fuel pump unit, no mention of if they have the pan/baffle thing, can anyone confirm if this is true?

[Cheesemaker]

Talk to Bigmike, IIRC WT told him to use a 2nd or 3rd gen extra cab efi tank in his first gen. 

What I would do is take some measurements, and then go to a wrecking yard and measure some newer tanks.  As long as the mounting areas are the same dimensions, everything else will fall in place. 

[toyyota]

Two wheel drive is what I used, a 22RE should be the same as far as the fuel tank. I wish the larger tank would have worked, I don't like caring extra fuel in a can if I don't need to.

[BigMike]

'79s did use an in-tank electric pump however I am not familiar with their internal baffling. Because I was doing an EFI swap anyway, I chose to go with (what I believe is) the largest Hilux tank, namely a 3rd gen XtraCab 6-cyl tank. I believe mine came from a 1992. The most I've filled up was around 19.6 gallons, so I assume it holds ~20 gal.

Because I installed a long bed tank into my short bed frame, I did have to move the rear mounting bar back on my frame about a foot or so. If interested I've got a few pics and info posted at replies #287 - 289.

For a fuel pump, I went with a 3.4-liter Tacoma fuel pump. The newer pumps are shorter and more efficient so you'll need a slightly longer hose between the bracket and the pump. I like the 3.4-liter pumps so much I installed the same into my '87 Supercharged MR2's stock gas tank. It's probably the same as the 2.7-liter, but saying I have a "6cyl pump" just sounds better

Regards,
BigMike

[toyodaaddict [OP]]

toyyota, i did some digging to confirm what you said about the 91 tank. what i found is the 89-95, EFI, 2wd, short bed, standard cab (vin RN80) gas tank is the same dimensions as the first gen short bed tank ! Today i hit the treasure yard and found one, set it next to my first gen tank and it appears to be identical except its an EFI tank . tomorrow when i see this thing bolt into my truck you got some turtle points coming your way! this tank is gonna save me a big pain in the a$$. thanks for the good info.

BigMike, after all this time how did i miss that your truck is a short bed?
 a 20gal fuel tank would be awsome!
 so the 3.4 fuel pump is more efficient and your saying it will work with the 22re huh? thats good to know.

if anyone knows of a efi tank that bolts into a first gen long bed post up, maybe this thread can be of use to someone else.

[BigMike]

...the 89-95, EFI, 2wd, short bed, standard cab (vin RN80) gas tank is the same dimensions as the first gen short bed tank

That is good to know! I'm willing to bet the '84-88 short bed tank is the same also.

Regards,
BigMike

[HogCanyonHopper]

I'm looking at a tank out of a 95 22RE regular cab 2wd pick-up to use for this 3rz swap into an 81 longbed. are the tank dimensions different for the long and short beds? maybe I better pass on this 2wd truck tank if it doesn't bolt right up 

[toyodaaddict [OP]]

     ok, I cant find the dimensions for the first gen tanks but  here is what I found for second gen and up EFI tanks. when you go hunting use the vin# to find the tank you want. check this out-


     PICKUP's

     79 ?
-

     80-83 4x4 short bed

     13.7gal  30 3/4'' x 16'' x 12 1/2''
-

     80-83 long bed ?
-

     89-91 2wd RN80
     86-88 2wd RN50

     13.7gal  30 3/4''x 16''x 12 1/2''
-
     84-88 2wd RN55
     86-88 2wd RN75
     89-95 2wd RN90
     88-95 2wd vzn85 (v6)
     88-95 2wd vzn90 (v6)

     17gal  37''x 15 3/4''x 12 3/8''
-
     85-88 4wd RN61
     89-95 4wd RN101
     89-95 4wd VZN100 (v6)

     17gal  37''x 16'' 13 1/8''
-
     86-89 4wd RN66
     86-89 4wd RN67
     89-95 4wd RN106
     89-95 4wd RN110
     89-95 4wd vzn105 (v6)
     89-95 4wd vzn110 (v6)

    19gal 37''x 16'' x 14 1/8''
-
    89-95 2wd RN85

   17gal  37'' x 15 3/4'' x 12 3/8''

WARNING: Im assuming that just because the dimensions are the same doesn't mean that the tanks are  all inerchangable but I think most are. it should give a real good starting point when hunting down a tank. I found this info on Tanks to pans.com

I will try and get the 4Runner dimensions up later

[HogCanyonHopper]

thnx buddy. thats some good info right there. I dont think i will get that tank. I am considering trying to mod the Tacoma tank in somehow on the drivers side so I can leave passenger side open for exhaust. 

[BigMike]

     86-89 4wd RN66
     86-89 4wd RN67
     89-95 4wd RN106
     89-95 4wd RN110
     89-95 4wd vzn105 (v6)
     89-95 4wd vzn110 (v6)

    19gal 37''x 16'' x 14 1/8''

Wow cool info toyodaaddict! I know for sure I've pumped over 19 gallons before. I'll need to take some measurements of my tank to see how it compares to this.

Regards,
BigMike

[toyodaaddict [OP]]

efi fuel tank is in! bolted right up    now to see if it solves my problem...

[BigMike]

Pictures OR IT DIDN'T HAPPEN

[toyodaaddict [OP]]

you dont want to see pics, it lookes  exactly the same as the stock setup. what i should have done is take pics of the two tanks side by side when they where out of the truck.

[BigMike]

Pictures OR IT DIDN'T HAPPEN

Pictures OR IT DIDN'T HAPPEN

[Toyota Addiction]

A little late.
My 81 long bed 4x4 has little over 19 gal. Tank. I have a spare one I can get the demensions off of if any on needs. It's a long bed also.

[Mtrdud]

So does the EFI tank only work with fuel injection or can it be used with a carb?

[toyodaaddict [OP]]

So does the EFI tank only work with fuel injection or can it be used with a carb?

i dont believe the carbed fuel pick up will bolt to the EFI tank.  Theres no reason not to use a carbed tank on a carbed truck.

[BigMike]

i dont believe the carbed fuel pick up will bolt to the EFI tank.

So just keep the EFI fuel pump bracket/assembly/pick up bolted to the EFI tank. The EFI tank will have a threaded fitting and flared connection above the tank for the high pressure line, but you could just cut the flare off,  slide the fitting off, and then slip a hose over the line as if it was a carb. tank (maybe give it a ridge or flare it so the hose can't get tugged off). I was going to wait to reply until I first looked inside a carb tank, but with the fuel pump removed, you'd simply need to attach a longer rubber hose internally to extend down to where the fuel pump's original pick up level was at and I'd assume it would suck liquid all the same. Using a filter similar to the filter at the bottom of an EFI pump would be a good idea. I imagine however that a carb pick up internal line has more baffling closer to it? Again, still need to go look at one. I wonder if a simple hose dropped into an EFI tank would still grab fuel as reliable at steep angles...

Theres no reason not to use a carbed tank on a carbed truck.

Older, harder to find, more likely to be rusted out. I do agree why mess around, just use a carb tank with a carb platform

Regards,
BigMike

[toyodaaddict [OP]]

BigMike, Im sure your right. I Think if someone wanted to they could get the EFI tank to work for a carbed truck fairly easy. I just wanted it clear that it wouldnt be a straight plug an play swap. oh! and I havnt forgot about those pics, ill get them posted as soon as I replace my card reader. It did happen!   and it solved the problem 

[zukkev]

i read that the 79 trucks used electric fuel pumps and there tanks will  except the later efi fuel pump unit, no mention of if they have the pan/baffle thing, can anyone confirm if this is true?

I did the 22RE swap into a 79...the 79 tank IS different, in that the sender location and pump location are opposite, and the EFI pump will not drop into the older tank, we tried, as he had just had his tank redone...Ended up installing the '90 EFI tank into the 79, only thing we had to do was drop the back of the tank by 1.5" to clear the bottom of the  Flatbed...Don't even notice it unless you know what to look for...
AND the bottom of his tank is still intact/unscathed after a few trips to the Rubicon, and to the Hammers...
BigMike, it's the Yellow Exo'd 1st Gen that Jessmo on here (Jesse) from Wa State has shown up to the Round-up with...There are pics in the Round ups from 2012, and 2013...