Rollover vent

[SpeedlabDan]

OK so I'm running a Boyd's aluminum 19gal tank (I know too small) with a aeromotive stealth 340 pump and a brass rollover valve with only a 3/8" barb.
I've been having trouble fueling at the pump especially when the pump is fast. I suspect the tank will not vent fast enough. So' s I went n bought a Joe's racing vent that goes on a 8-an fitting in hopes of gaining ventilation this solving my problem.
Question is: can this vent be mounted direct to the top of the tank or should I extend it and mount it remotely but somewhere outside the passenger compartment? Right now I'm thinking of going sfdaut off the top of the tank bc title be under the floor.

 

[frankin5]

Does this tank have a filler neck vent for the tank?

 

[nvrenuf]

Once upon a time in my old K10... I ran an RCI 22 gal aluminum cell with a spot for a vent on the top corner. I had a #8 bulkhead style rollover valve with a 90° #6 nipple on the outside with a soft hose run down the side of the cell long enough that it terminated about 2" below the bottom off the cell with a tiny breather filter on it to keep trash out.

Running the vent hose like that was just a redundant safety thing - if the cell were turned upside down the end of the vent would then be above the cell preventing a spill in the event the valve failed / leaked.

 

[SpeedlabDan]

Does this tank have a filler neck vent for the tank?

Currently running the rollover to the factory neck vent

 

[SpeedlabDan]

Once upon a time in my old K10... I ran an RCI 22 gal aluminum cell with a spot for a vent on the top corner. I had a #8 bulkhead style rollover valve with a 90° #6 nipple on the outside with a soft hose run down the side of the cell long enough that it terminated about 2" below the bottom off the cell with a tiny breather filter on it to keep trash out.

Running the vent hose like that was just a redundant safety thing - if the cell were turned upside down the end of the vent would then be above the cell preventing a spill in the event the valve failed / leaked.

Good point I had not thought of the fact: if in the event of a rollover the bottom is top! So the vent should work the way I'm talking?

 

[SpeedlabDan]

Here's the vent I'm using

 

[nvrenuf]

I would think so. Is your valve a bulkhead type or different? Got a pic?

this is the style I had - https://www.jegs.com/i/JAZ/547/834-...Fa_S5JSsMkTx14MbUocfuWUX6DsDF5gxoC3IQQAvD_BwE

The cell body was sandwiched between the 2 plastic washers, the blue part of the fitting was on the outside.

 

[nvrenuf]

Here's the vent I'm using

View attachment 266728

Does that come apart? Maybe the bolt head out the outside and the rest of the valve body on the inside?

 

[SpeedlabDan]

I would think so. Is your valve a bulkhead type or different? Got a pic?

this is the style I had - https://www.jegs.com/i/JAZ/547/834-...Fa_S5JSsMkTx14MbUocfuWUX6DsDF5gxoC3IQQAvD_BwE

The cell body was sandwiched between the 2 plastic washers, the blue part of the fitting was on the outside.

Check above pic, it's an8 female so I'm using an an8 to 1/2" npt adapter to the threaded bung in the top of the tank

 

[SpeedlabDan]

I think that would be a slosh valve with the float that goes in the tank. I'm not sure but I think this is an external vent only

 

[nvrenuf]

The one I posted has a big ball bearing loose in it that (when upside down) falls into beveled seat to close off the fitting.

 

[SpeedlabDan]

I believe this is a similar desight it's just got a hat on it