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#1055660 - 02/05/18 08:23 PM efi tank vent with tanks inc  
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1988SilverBulletMCSS Offline
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1988SilverBulletMCSS  Offline
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Daytona Beach, FL
has anyone used the tanks inc rollover vent? if so where have you mounted it on your Gbody? http://www.tanksinc.com/index.cfm/p...d=98/category_id=167/mode=prod/prd98.htm

#1055662 - 02/05/18 09:42 PM Re: efi tank vent with tanks inc [Re: 1988SilverBulletMCSS]  
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upflying Offline
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upflying  Offline
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Reno, NV
Hmm, never considered a one way vent to prevent fuel spill when my car goes upside down. OTH, when my car is upside-down, I probably have more problems than spilling fuel. Is this required in racing for a tech inspection?

Last edited by upflying; 02/05/18 09:43 PM.

86 MCSS Notchback coupe, LS3, 4L65E, QP 9", Eaton Truetrac, 4 wheel disc, column shift, Dakota Digital, silver with maroon bench interior

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#1055663 - 02/05/18 09:48 PM Re: efi tank vent with tanks inc [Re: 1988SilverBulletMCSS]  
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Hunter79764 Online content
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Grand Prairie, Tx
I haven't used one either, but if your car is upside down, the potential problems from a puddle of fuel are most likely going to be high on the list...

I would guess you would want it as high up as reasonably possible, maybe mounted in the area around the filler neck. That would keep it close by, easy to inspect, although possibly placed just perfectly to squirt gas onto you when the tank is full... Might be worth testing out with a zip-tie for a while until you nail down the location. I had it on my list to finalize a good vent strategy and get it installed, but I'm about 6 1/2 years post-swap and... Yeah, still haven't done it.


Sometimes you just need a bigger hammer...

'85 MC with budget 5.3L swap, TH350 with stock 2.14 rear end
It ain't much off the line, but it's nice on the highway
#1055670 - 02/05/18 11:38 PM Re: efi tank vent with tanks inc [Re: upflying]  
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1988SilverBulletMCSS Offline
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1988SilverBulletMCSS  Offline
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Daytona Beach, FL
im not worried about my car being upside down. I considered this to properly vent the tank to allow me to fill the tank without gas spitting back

#1055671 - 02/05/18 11:38 PM Re: efi tank vent with tanks inc [Re: Hunter79764]  
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1988SilverBulletMCSS Offline
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Daytona Beach, FL
Ok will try that just wanted to have a good location to properly vent

#1055674 - 02/06/18 02:33 AM Re: efi tank vent with tanks inc [Re: 1988SilverBulletMCSS]  
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spacemanspif Offline
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If you want to spend a bunch of money look into 2much fabrication and their vent/filter for capturing fumes. I think this summer I am going to rig up a cheap catch can filled with activated charcoal to act as a charcoal canister but that still vents to atmosphere. Currently I just have a tube that is probably allowing dust into my tank.


-Mike

F-body bucket seats, camaro console, carb'd 5.3/4L80E swap

Fastest time to date: 13.671 @ 103.79
Best r/t: 0.007 I got lucky smile

Killed a few cones too

#1055693 - 02/06/18 04:24 PM Re: efi tank vent with tanks inc [Re: 1988SilverBulletMCSS]  
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1988SilverBulletMCSS Offline
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Daytona Beach, FL
ok thanks i looked at the iimuch product and it looks pretty nice maybe mount inside of trunk

#1055694 - 02/06/18 05:10 PM Re: efi tank vent with tanks inc [Re: 1988SilverBulletMCSS]  
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mmc427ss Offline
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mmc427ss  Offline
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The "spit back" when filling is a common problem with the Gs. The size of the restricted hole in the neck is the problem along with the angle and height above the tank. One solution being done is to install a line from the bottom of the fill tube to the top of the fill tube bypassing the restriction. If I would have know about that before installing the new tank I would have done that mod.

There was someone here using the Tanks vent, don't remember who that was.

One issue you have when removing the factory vent/canister system is fuel odor. Anytime you add a open vent on the closed system, non vented cap, you may have a fuel smell, parked inside an enclosed garage, hot days common.
Bob

#1055706 - 02/07/18 02:43 AM Re: efi tank vent with tanks inc [Re: 1988SilverBulletMCSS]  
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Sloe87 Offline
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Northern IL
I'm using that rollover vent. I just connected it to the factory vent line that runs along the driver's side frame rail using a short piece of hose. Regarding the slow fill issue, I bought a new baffled tank and had a radiator shop remove the neck from the old tank and braze it onto the new one. The tank fills up quickly with no issues. My long term plan is to figure out how to set up a charcoal canister to properly recycle the fumes.

If I end up on my roof someday I'll let you know how the rollover vent worked. 🙂


1987 Monte Carlo SS
350 / 2004R
FiTech EFI
T-top
#1055830 - 02/11/18 06:25 PM Re: efi tank vent with tanks inc [Re: Sloe87]  
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jmireles Online content
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jmireles  Online Content
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El Paso, Tx
Originally Posted by Sloe87


If I end up on my roof someday I'll let you know how the rollover vent worked. 🙂


Lol!


-'87 Monte SS LS 2/4L65e Quick Perf. 9" w/disk brakes
-'89 Iroc Z28 Stock 5.7 Edelb. TES headers, Borla Exhaust90K
-'77 Trans Am 468(Stroked) Doug's Headers Flowmaster catback
B & M shift Kit 400 Turbo trans. Edel brock Performer
RPM Intake Sean Murphy built Rochester Carb. Restored
in '08. 3K
#1055859 - 02/12/18 06:41 PM Re: efi tank vent with tanks inc [Re: 1988SilverBulletMCSS]  
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Joe87monteSS Offline
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Joe87monteSS  Offline
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Memphis,TN
I use that vent as well. I ran mine with rubber hose to the filler neck and zip tie'd it there.


Joey
Engine/head builder/machinist
1987 Monte Carlo SS 383/4 Speed
2004 Silverado
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