Burb Gas Tank for EFI Conversion?

[Southcity]

Thanks lownslow64. My understanding of the design on the original tanks is that the smaller tube which leads back to the main fill tube (terminates just below the gas cap) is to help prevent gas from splashing back out (fill pressure) when filling the tank. If using a stock style fuel pump, tank pressure increases/decreases when driving, when ambient temperatures change etc. A vent is required somewhere to help with this, in stock form I believe the original gas cap was vented. My current gas cap, even though it's aftermarket, is also vented and helps with this. The only issue I have from time to time is a small amount of gas seepage from the vented cap if tank is more than half full and I take some hard turns.

[RoyL]

Originally Posted by lownslw64

The boyd tank is 19 gallons, My fill is 10.75 to center of pipe from front of tank and I left how it was placed from side to side in their standard location. It would be to your benefit to move that in a inch or two so when you install you can put it straight up and not have to angle into position. The pipe size is 1.5" also. The only issue i had with this setup is i also bought the rollover vent i think it's called but due to the location of the fill it would keep it closed when filling and not allow the tank to breathe causing it to always shut off. i ended up taking it out.

Thx for the info! Can you please clarify what you mean by the above in blue?
Confused as to where the "standard location" is?

[RoyL]

Originally Posted by lownslw64

The boyd tank is 19 gallons, My fill is 10.75 to center of pipe from front of tank and I left how it was placed from side to side in their standard location. It would be to your benefit to move that in a inch or two so when you install you can put it straight up and not have to angle into position. The pipe size is 1.5" also. The only issue i had with this setup is i also bought the rollover vent i think it's called but due to the location of the fill it would keep it closed when filling and not allow the tank to breathe causing it to always shut off. i ended up taking it out.

Originally Posted by RoyL

Thx for the info! Can you please clarify what you mean by the above in blue? Confused as to where the "standard location" is?

Can you clarify what you mean by "My fill is 10.75 to center of pipe from front of tank and I left how it was placed from side to side in their standard location. It would be to your benefit to move that in a inch or two so when you install you can put it straight up and not have to angle into position." Do you mean move it in 1 or 2 inches less than the 10.75"? Or you would move their "standard" location? Not sure what the standard location is...?

[lownslw64]

Originally Posted by RoyL

Can you clarify what you mean by "My fill is 10.75 to center of pipe from front of tank and I left how it was placed from side to side in their standard location. It would be to your benefit to move that in a inch or two so when you install you can put it straight up and not have to angle into position." Do you mean move it in 1 or 2 inches less than the 10.75"? Or you would move their "standard" location? Not sure what the standard location is...?

Sorry for the delay... To clarify of the post previously i altered my fill neck 10.75 from front of tank to Center of new fill pipe which i changed to 1.5" to match existing fill on 60's suburban. i was suggesting to inset the fill 1.5"pipe maybe a inch or so towards the center from there standard which shows 9.75 from center because i installed mine with my burb on jack stands using a floorjack i felt like i had to angle it a bit to get it into place as well as line it up with the brackets you mount to the frame for installation. It would just move the end of the fill pipe inward a bit to not be a comflict during install. It wasn't a huge pain but just a suggestion for my installation method. if you have a rack and more space available it probably wouldn't be such a problem. Let me know if that makes sense.

[RoyL]

Originally Posted by lownslw64

Sorry for the delay... To clarify of the post previously i altered my fill neck 10.75 from front of tank to Center of new fill pipe which i changed to 1.5" to match existing fill on 60's suburban. i was suggesting to inset the fill 1.5"pipe maybe a inch or so towards the center from there standard which shows 9.75 from center because i installed mine with my burb on jack stands using a floorjack i felt like i had to angle it a bit to get it into place as well as line it up with the brackets you mount to the frame for installation. It would just move the end of the fill pipe inward a bit to not be a conflict during install. It wasn't a huge pain but just a suggestion for my installation method. if you have a rack and more space available it probably wouldn't be such a problem. Let me know if that makes sense.

Thanks! just making sure I understood...

So you would move the filler port and vent ~1" inward/closer to the center, 8.75" vs the standard of 9.75"

and use 10.75" from the front of the tank vs the standard 14.642"?

Reposting the diagram, since it cut off the left side dimension showing the standard filler port location of 14.642"

[lownslw64]

Originally Posted by RoyL

Thanks! just making sure I understood...

So you would move the filler port and vent ~1" inward/closer to the center, 8.75" vs the standard of 9.75"

and use 10.75" from the front of the tank vs the standard 14.642"?

Reposting the diagram, since it cut off the left side dimension showing the standard filler port location of 14.642"

Yes, i would move the filler 10.75 from the front of the tank and 8.75 from the center and change pipe size to 1.5" to hook right up to the existing fill. That will allow you the right size pipe, location to hook up and allow you the space to install without fighting it to much...good luck!

[lownslw64]

When I ordered mine I spoke to the owner travis and he was in the process of making a suburban option through boyd because that was his suburban and there was no option for them without alot of work. I would call them and talk to travis and go over the measurements for verification.

[RoyL]

Originally Posted by lownslw64

When I ordered mine I spoke to the owner travis and he was in the process of making a suburban option through boyd because that was his suburban and there was no option for them without alot of work. I would call them and talk to travis and go over the measurements for verification.

I PM'd Travis and ordered from another ProPerfomance guy. No forum discount though... lol. Ordered on 28-March and received it 28-Apr.
Here's a few pics, will post the fitment once I get there.

Filler tube does not protrude out from the tank like the stock one, but appears to line up pretty good front to back.

[Southcity]

Thanks RoyL, those are some very helpful pics and that is one nice looking new tank. Almost a shame it hide it up under a truck looking forward to your fitment updates.

[lownslw64]

Royl- Tank looks good. they made some nice improvements to it. Let us know how the install goes.

[RoyL]

Originally Posted by Southcity

Thanks RoyL, those are some very helpful pics and that is one nice looking new tank. Almost a shame it hide it up under a truck looking forward to your fitment updates.

Originally Posted by lownslw64

Royl- Tank looks good. they made some nice improvements to it. Let us know how the install goes.

A bit of an update, got the tank mocked up yesterday.

Filler tube could be 1" or so further rearward for perfect alignment, as recommended by lownslw64. Measured the tank and it's ~9" from the front edge of the tank. He suggested 10.75" Mounting flanges line up nicely, have about a 1/2" clearance front to back inside the cross braces. Interesting note, the front cross brace near the axle is slightly angled, apparently to allow room for the stabilizer mount. Y'all probably knew that... I thought I didn't have the tank lined up right, but it was the cross brace.

[Southcity]

[QUOTE=RoyL;9085010]A bit of an update, got the tank mocked up yesterday.



Great pics and updates, nice to get real feedback on this tank install. Keep up the great work and keep us posted!

[SuperDuperDoughnuts]

Any more updates? My long-term goal is EFI, and I'm currently having fuel pump issues. was half thinking about investing in a new tank and electric fuel pump now instead of replacing the mechanical... might as well, right?

[RoyL]

Originally Posted by SuperDuperDoughnuts

Any more updates? My long-term goal is EFI, and I'm currently having fuel pump issues. was half thinking about investing in a new tank and electric fuel pump now instead of replacing the mechanical... might as well, right?

Not yet, sorry. No engine yet, so can't finalize my plumbing. Next will be to mock up the filler and vent hoses.