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Old 02-13-2018, 10:55 AM   #1
RADustin
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Join Date: Jun 2017
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adding baffles to not efi tanks

Has anyone successfully added baffles to a non efi tank to make it an efi tank?

Just curious what's out there and has been used successfully before I have to sell and buy new tanks.
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Old 02-13-2018, 11:09 AM   #2
mongocanfly
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Re: adding baffles to not efi tanks

why does it need baffles?im running fi with my stock tank...
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Old 02-13-2018, 11:26 AM   #3
mongocanfly
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Re: adding baffles to not efi tanks

you could use something like this if your worried about starving your pump......http://www.superchevy.com/how-to/add...ick-up-system/
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Mongo...aka Greg

1981 c30 lq9 nv4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598
1955.1 ls3 tr6060...(under construction)(on hold)
2013 gmc z71. (daily driver)
Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563
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Old 02-13-2018, 02:15 PM   #4
RADustin
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Re: adding baffles to not efi tanks

Quote:
Originally Posted by mongocanfly View Post
why does it need baffles?im running fi with my stock tank...
Do you have an intake pump?

I'm not even sure what the stock baffles look like?

Baffles in an intake pump setup keep constant liquid around the pump to ensure it doesn't cavitate. They need a constant feed of good quality liquid to ensure the output pressure remains constant.


Quote:
Originally Posted by mongocanfly View Post
you could use something like this if your worried about starving your pump......http://www.superchevy.com/how-to/add...ick-up-system/
VERY expensive. Might as well buy the new tanks.
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Old 02-13-2018, 02:39 PM   #5
mongocanfly
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Re: adding baffles to not efi tanks

im using inline pump...but I had my tank off and theres no baffles in it..
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Mongo...aka Greg

1981 c30 lq9 nv4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598
1955.1 ls3 tr6060...(under construction)(on hold)
2013 gmc z71. (daily driver)
Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563
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Old 02-13-2018, 06:24 PM   #6
homemade87
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Re: adding baffles to not efi tanks

You can run a non baffle tank with no problem ( internal pump or external pump ) . Just dont let it get below 1/4 tank of fuel . If it gets to low pump gets some air and the engine will stumble or die . Most likely during braking .

I bought a new tank for mine . Seems like it was somewhere about $100.00 . Was not to bad . I dont think it would be worth the hassle for that .
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Old 02-13-2018, 06:49 PM   #7
Capecodster
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Re: adding baffles to not efi tanks

My wagon has a EFI tuneport. I ran a pickup at bottom of tank and a return line to the top. Inline fuel pump. Ran ok, but when you start to get low and take a off ramp or go around a corner, the fuel will slosh away and starve the pump. engine will sputter or die.

I built a new aluminum 20 gallon tank. It has 2 slosh plates about 3/4 up . running fore and aft spaced apart. This allows the fuel to over flow the bulkhead when filling and not come back up the nozzle . On the bottom we cut half circle's in them to let the fuel under.

I bought the Holley EFI retrofit fuel pump with mount. This is super easy to install and very well built. Around $450.00 at summit. Has a Hydro sock. Fuel comes in but not back out! So no baffle needed. Well because I was making the tank I put them in anyways.

I mounted my pump right between the baffles. in the center of the tank and forward as Holley recommended. The sock is off-set, so one side is longer then the other. The short side is forward towards the rearend cover. Long side to the back of the frame.
Let me tell you, it works SUPER! and it is quiet and cool sitting in the tank full of fuel. It has a twist lock setup 9 Little cams that swing out when you tighten the Allen) and is as easy as cutting the hole, install gasket. Cut rod to measured length in instructions and place pump in hole. Tighten all allen heads and your done! NO leaks at all !!!!
The pump does not sit in the bottom! it is above. The sock soaks fuel and bends downward into the fuel, keeping the pump out of the crap on the bottom!

Super Slick.
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