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Fuel Cell Vent Line - Question/Poll #1842776
06/06/15 09:56 AM
06/06/15 09:56 AM
Joined: Jan 2003
Posts: 16,941
NC
440Jim Offline OP
I Live Here
440Jim  Offline OP
I Live Here

Joined: Jan 2003
Posts: 16,941
NC
How do you route the vent line from your fuel cell and why?
1) Loop in top of line
2) Loop in bottom of line
3) Loop on the side of the tank
4) No loop

Vent Line
single choice
Votes accepted starting: 06/06/15 09:56 AM
VentLoops.jpgVentLoop_none.jpg
Re: Fuel Cell Vent Line - Question/Poll [Re: 440Jim] #1842786
06/06/15 10:17 AM
06/06/15 10:17 AM
Joined: Dec 2003
Posts: 23,607
Here
J
jcc Offline
No soup for you!!!
jcc  Offline
No soup for you!!!
J

Joined: Dec 2003
Posts: 23,607
Here
First, does the tank in question have a "rollover vent valve"?


I'm with Helmuth Hübener, and no soup is being served today.
Re: Fuel Cell Vent Line - Question/Poll [Re: 440Jim] #1842806
06/06/15 10:55 AM
06/06/15 10:55 AM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
Master
MR_P_BODY  Offline
Master

Joined: Jun 2003
Posts: 52,972
Romeo MI
As soon as I get some more line in stock here..I'll
do what I normally do on the vent.. it takes more line
but it also has a roll over feature.. I I come up from
the tank then go either left or right but go as far as
I can then do a 180* and go all the way across the car
then back to some place thats out of the way and drop
the line down below the bottom of the tank... I do this
even if it has a roll over valve
EDIT
The reason I do it this way is that it always has
a high loop above the tank even in any condition..
that high loop keeps fuel from draining
wave

Last edited by MR_P_BODY; 06/06/15 08:47 PM.
Re: Fuel Cell Vent Line - Question/Poll [Re: jcc] #1842821
06/06/15 11:28 AM
06/06/15 11:28 AM
Joined: Jan 2003
Posts: 16,941
NC
440Jim Offline OP
I Live Here
440Jim  Offline OP
I Live Here

Joined: Jan 2003
Posts: 16,941
NC
Originally Posted By jcc
First, does the tank in question have a "rollover vent valve"?
I will ask him.
Even if he doesn't, since the line exits below the floor of the tank, if the car is inverted, the end of the hose will be above the tank and I don't think that could flow. But if the car comes to rest on its left side, the hose end will be below the tank...

JCC, how do you do it with and without the rollover valve?

Re: Fuel Cell Vent Line - Question/Poll [Re: 440Jim] #1842832
06/06/15 11:41 AM
06/06/15 11:41 AM
Joined: Jan 2003
Posts: 5,767
Hot Rod Ridge
FastmOp Offline
master
FastmOp  Offline
master

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Posts: 5,767
Hot Rod Ridge
I have always seen it with the loop on the bottom. I have the Valiant set up like that.
My Avenger is loop on the side because I run the vent to a scoop for pressure going down the track.

Re: Fuel Cell Vent Line - Question/Poll [Re: 440Jim] #1843017
06/06/15 05:55 PM
06/06/15 05:55 PM
Joined: Jan 2006
Posts: 360
Ohio
shorthorse Offline
enthusiast
shorthorse  Offline
enthusiast

Joined: Jan 2006
Posts: 360
Ohio
Rollover valve and no loop. I also stuck a small fuel filter at the end of my hose outside just to keep any dust or dirt from going up into the hose. I'm probably over thinking this but if for any reason liquid would gather in the loop then it would be more like a sink trap and there would be no venting.

Re: Fuel Cell Vent Line - Question/Poll [Re: shorthorse] #1843025
06/06/15 06:14 PM
06/06/15 06:14 PM
Joined: Oct 2010
Posts: 2,428
Ambridge, Pa.
R
rickraw Offline
top fuel
rickraw  Offline
top fuel
R

Joined: Oct 2010
Posts: 2,428
Ambridge, Pa.
This is true. I just have a roll over with the hose arched & going through the trunk floor.

Re: Fuel Cell Vent Line - Question/Poll [Re: 440Jim] #1843126
06/06/15 09:38 PM
06/06/15 09:38 PM
Joined: Jan 2003
Posts: 6,531
Jacksonville, FL
Chris2581 Offline
master
Chris2581  Offline
master

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Posts: 6,531
Jacksonville, FL
No loop. Just a upside down "J" from cell to front of cell in floor using aluminum tubing.


Nautilus Racing-
We use Superformance gaskets and Turbo Action converters/products.
Re: Fuel Cell Vent Line - Question/Poll [Re: Chris2581] #1843153
06/06/15 10:34 PM
06/06/15 10:34 PM
Joined: Jan 2003
Posts: 1,883
Northern OH
R
rapom Offline
top fuel
rapom  Offline
top fuel
R

Joined: Jan 2003
Posts: 1,883
Northern OH
I did 2 loops above the cell and then to a rubber hose with a fuel filter on the end.

I will have to take a picture if interested.

Works great.

Re: Fuel Cell Vent Line - Question/Poll [Re: 440Jim] #1844382
06/08/15 05:36 PM
06/08/15 05:36 PM
Joined: Jun 2010
Posts: 462
Stockholm, Sweden
fed Offline
mopar
fed  Offline
mopar

Joined: Jun 2010
Posts: 462
Stockholm, Sweden
No loop, rollovervalve and a little tankfoam in the bulkheadfitting.


Cuda, -70
Valiant-65 AWB,
Valiant Signet200 -65 Topchopped dragcar.
Topolino Fuel Altered.
NostalgiaFED Sold,
SuperComp Bantam Altered, Sold
Ex Harlan Thompsons Nitro funny car American Graffiti Sold,
Re: Fuel Cell Vent Line - Question/Poll [Re: fed] #1844436
06/08/15 07:03 PM
06/08/15 07:03 PM
Joined: Aug 2009
Posts: 2,076
Mooresburg, Tn
'
'72CudaRacer Offline
top fuel
'72CudaRacer  Offline
top fuel
'

Joined: Aug 2009
Posts: 2,076
Mooresburg, Tn
Similar to the bottom picture, only tighter to the tank and to the right side. the bottom of the vent hangs down below the tank. That way the only way fuel can run out the vent is if the car is turned over and laying on the right side.

Brian







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