How to vent your fuel cell? - Page 2

svtbarry · 11-01-2009, 06:53 PM

Yeah, exactly that. When a hot gas runs through a comparatively cooler tube it will turn back into a liquid. Therefore I am getting liquid fuel filling up the coils.

Tim Skelton · 11-01-2009, 07:22 PM

Quote:

Originally Posted by svtbarry

Yeah, exactly that. When a hot gas runs through a comparatively cooler tube it will turn back into a liquid. . . ..

Yup. That's how a shine still works.

svtbarry · 11-01-2009, 07:33 PM

Only not so tasty

harley#356 · 11-01-2009, 08:42 PM

is there something else in your fuel setup thats causing the fuel to heat up too much? Seems like yours is really wanting to spew the fuel out. Mine warms up with the 2025A Weldon, but not to the point where its all that hot and condensing and pushing out the vent.

150xlt · 11-01-2009, 08:54 PM

I am running an a1000 with a 10 gal cell and my vent is not near as nice as 356's and i have no problem with fuel coming out it. All mine is a 45* fitting and some i think -4 line no loops or anything. I dont fill it to the absolute top either, 9 to 9 1/2 gallons usually. Here is the only pic i got of mine.

svtbarry · 11-01-2009, 09:07 PM

Well, this is getting pretty strange. Yes, my system really pumps out the fumes big time. One match and I'd have a very effective flame thrower. Can't figure out why I seem to have this problem when others report no probs.

#1lightningfan · 11-02-2009, 05:27 PM

If your using plastic tubing, how can it be getting cool enough to condense? Where did you have the end of the tube coming out at, under the bed?

I just cant see how its getting that hot. Vapors and condensate are 2 different animals right?

svtbarry · 11-02-2009, 10:59 PM

Yes, at the moment I am playing with plastic tubing ( 3/8 bore ). No matter what configuration I fab up I get the hot gas fumes/vapours really pumping out of the end of the tubing and the condensing vapors in the tubing turning back into a liquid and being pushed through the tubing with the vapors. Right now the end of the tubing is just lying on the bed floor, until I figure out what to do.

Vapors and condensate ( I say condensation ) ... Don't forget that the vapor is the same stuff as you put in the tank, only now it is in a gaseous form. When this vapor condenses it turns back into the original liquid.

svtbarry · 11-03-2009, 10:03 PM

OK, for anyone that's still interested, the whole problem seems to be caused simply by the gas in my cell getting far too hot. Can't work out why this is but that is the problem. Anyone running a fuel cooler

harley#356 · 11-04-2009, 06:57 AM

rather than just patching the issue with a fuel cooler, can you determine where the fuel is heating up so much? Is there a big restriction point causing the pump to be overworked and heating the fuel up?

A fuel cooler still wouldn't be a bad idea, but I think there's something more to it. I'm not running a cooler and my fuel still only gets warm.

svtbarry · 11-04-2009, 05:47 PM

Thanks for hanging with this thread. I'll take a close look at the whole system but I know the previous owner/installer was very meticulous in getting everything perfect including I'm sure the fuel upgrades.

BillsGray04L · 11-04-2009, 06:24 PM

My 2 cents - perhaps someone should seek the advice of a professional race team since they run fuel cells exclusively

I'D WIN · 11-16-2009, 01:13 PM

Quote:

Originally Posted by harley#356

rather than just patching the issue with a fuel cooler, can you determine where the fuel is heating up so much? Is there a big restriction point causing the pump to be overworked and heating the fuel up?

A fuel cooler still wouldn't be a bad idea, but I think there's something more to it. I'm not running a cooler and my fuel still only gets warm.

First off, is a vent even necessary?

Secondly, a fuel cooler is not designed for high pressure systems and typically have a max fuel pressure rating of 50psi.

harley#356 · 11-16-2009, 01:34 PM

Quote:

Originally Posted by I'D WIN

First off, is a vent even necessary?

Secondly, a fuel cooler is not designed for high pressure systems and typically have a max fuel pressure rating of 50psi.

Didn't know that about a fuel cooler, don't have one on my system so never looked into them.

But if you didn't have a vent on the cell, how would you relieve the vacuum created when consuming the fuel?

I'D WIN · 11-16-2009, 03:07 PM

Its a good question but I just run the JAZ filler cap which has a one-way vent check valve on it ... I'm not sure I have ever had any problems either.

More, my stand alone fuel cell that I purchased for my nitrous system didn't have a vent setup (other than the same cap) and it was a complete kit.

When I had my tank built by a race team out of CA, I asked about the need for a secondary vent and they told me to not worry about it.

Hmmm......

11-01-2009, 08:54 PM	#20 (permalink)
150xlt Registered User Join Date: Sep 2008 Location: Corydon, Indiana Posts: 41 View this user's gallery iTrader: 0 / 0%	I am running an a1000 with a 10 gal cell and my vent is not near as nice as 356's and i have no problem with fuel coming out it. All mine is a 45* fitting and some i think -4 line no loops or anything. I dont fill it to the absolute top either, 9 to 9 1/2 gallons usually. Here is the only pic i got of mine. __________________ 97 F150 MMR shortblock, JLP Stage 3 Cams, POSI Performance Ported Eaton, Dirty Dog Performance Built 4R75W, SCT tuned by Blankenship Tunning and Performance 7.28 @ 95.84 mph 1.62 60ft

11-02-2009, 05:27 PM	#22 (permalink)
#1lightningfan Registered User Join Date: Jun 2009 Posts: 19 View this user's gallery iTrader: 0 / 0%	If your using plastic tubing, how can it be getting cool enough to condense? Where did you have the end of the tube coming out at, under the bed? I just cant see how its getting that hot. Vapors and condensate are 2 different animals right? Last edited by #1lightningfan; 11-02-2009 at 05:32 PM..

11-02-2009, 10:59 PM	#23 (permalink)
svtbarry Registered User Join Date: Mar 2004 Location: Central Florida Posts: 2,739 View this user's gallery iTrader: 9 / 100%	Yes, at the moment I am playing with plastic tubing ( 3/8 bore ). No matter what configuration I fab up I get the hot gas fumes/vapours really pumping out of the end of the tubing and the condensing vapors in the tubing turning back into a liquid and being pushed through the tubing with the vapors. Right now the end of the tubing is just lying on the bed floor, until I figure out what to do. Vapors and condensate ( I say condensation ) ... Don't forget that the vapor is the same stuff as you put in the tank, only now it is in a gaseous form. When this vapor condenses it turns back into the original liquid. Last edited by svtbarry; 11-02-2009 at 11:05 PM..

11-04-2009, 06:24 PM	#27 (permalink)
BillsGray04L BillsGray04L Paid Member Join Date: Mar 2007 Location: Plantation, Florida Posts: 384 NLOC member #: 2359 View this user's gallery iTrader: 0 / 0%	My 2 cents - perhaps someone should seek the advice of a professional race team since they run fuel cells exclusively __________________ Bill and Cretia Plantation, Florida 04 Dark Shadow Gray Lightning born on date: 11/07/2003 #835 of 3781 Flowmaster exhaust Gaylord Speedsturr CAI DiabloSport Predator 93 octane performance tune DynoJet on 03-07-09 @ 357.29 hp and 417.41 torque Hotchkis TVS with single adjustable QA1's 03/09 03 Black Range Rover - the wife's daily driver The Government does not need to know who owns what firearm. The Government needs to remember that WE DO own firearms.

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11-01-2009, 06:53 PM	#16 (permalink)
svtbarry Registered User Join Date: Mar 2004 Location: Central Florida Posts: 2,739 View this user's gallery iTrader: 9 / 100%	Yeah, exactly that. When a hot gas runs through a comparatively cooler tube it will turn back into a liquid. Therefore I am getting liquid fuel filling up the coils.

11-01-2009, 07:33 PM	#18 (permalink)
svtbarry Registered User Join Date: Mar 2004 Location: Central Florida Posts: 2,739 View this user's gallery iTrader: 9 / 100%	Only not so tasty

11-01-2009, 08:42 PM	#19 (permalink)
harley#356 10.48 @ 131.68 in a HD! Join Date: Jun 2002 Location: South Jersey Posts: 3,388 View this user's gallery iTrader: 12 / 100%	is there something else in your fuel setup thats causing the fuel to heat up too much? Seems like yours is really wanting to spew the fuel out. Mine warms up with the 2025A Weldon, but not to the point where its all that hot and condensing and pushing out the vent.

11-01-2009, 09:07 PM	#21 (permalink)
svtbarry Registered User Join Date: Mar 2004 Location: Central Florida Posts: 2,739 View this user's gallery iTrader: 9 / 100%	Well, this is getting pretty strange. Yes, my system really pumps out the fumes big time. One match and I'd have a very effective flame thrower. Can't figure out why I seem to have this problem when others report no probs.

11-03-2009, 10:03 PM	#24 (permalink)
svtbarry Registered User Join Date: Mar 2004 Location: Central Florida Posts: 2,739 View this user's gallery iTrader: 9 / 100%	OK, for anyone that's still interested, the whole problem seems to be caused simply by the gas in my cell getting far too hot. Can't work out why this is but that is the problem. Anyone running a fuel cooler

11-04-2009, 06:57 AM	#25 (permalink)
harley#356 10.48 @ 131.68 in a HD! Join Date: Jun 2002 Location: South Jersey Posts: 3,388 View this user's gallery iTrader: 12 / 100%	rather than just patching the issue with a fuel cooler, can you determine where the fuel is heating up so much? Is there a big restriction point causing the pump to be overworked and heating the fuel up? A fuel cooler still wouldn't be a bad idea, but I think there's something more to it. I'm not running a cooler and my fuel still only gets warm.

11-04-2009, 05:47 PM	#26 (permalink)
svtbarry Registered User Join Date: Mar 2004 Location: Central Florida Posts: 2,739 View this user's gallery iTrader: 9 / 100%	Thanks for hanging with this thread. I'll take a close look at the whole system but I know the previous owner/installer was very meticulous in getting everything perfect including I'm sure the fuel upgrades.

11-16-2009, 03:07 PM	#30 (permalink)
I'D WIN Registered User Join Date: Feb 2003 Location: Las Vegas Posts: 4,776 View this user's gallery iTrader: 7 / 100%	Its a good question but I just run the JAZ filler cap which has a one-way vent check valve on it ... I'm not sure I have ever had any problems either. More, my stand alone fuel cell that I purchased for my nitrous system didn't have a vent setup (other than the same cap) and it was a complete kit. When I had my tank built by a race team out of CA, I asked about the need for a secondary vent and they told me to not worry about it. Hmmm......