Re: How often do you drain your racecar fuel cell (gas only)?
[Re: 440Brian]
#1872380
07/17/15 04:36 PM
07/17/15 04:36 PM
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Joined: Jan 2003
Posts: 19,372 Las Vegas
Al_Alguire
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 19,372
Las Vegas
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After every race we drain ours. The vent will allow air to get to the fuel. Oxygen is the enemy of race fuel. When we race over an weekend like an LODRS deal we actually plug the vent with a rubber cap to keep air out. But it is drained after every weekend and always stored in metal cans as many plastic jugs are pourous enough to allow light or oxygen in. Sunlight can also have an affect on race fuel.
"I am not ashamed to confess I am ignorant of what I do not know."
"It's never wrong to do the right thing"
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Re: How often do you drain your racecar fuel cell (gas only)?
[Re: 440Brian]
#1872516
07/17/15 08:19 PM
07/17/15 08:19 PM
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Joined: Jan 2004
Posts: 13,247 Mt. Vernon, Ohio
dartman366
I Live Here
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I Live Here
Joined: Jan 2004
Posts: 13,247
Mt. Vernon, Ohio
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only time I drain the regular racing fuel is when I put the car away for the winter, but I also fill it to the top after a race to keep the amount of air in the cell to a minimum.
Last edited by dartman366; 07/17/15 08:20 PM.
Light travels faster than the speed of sound,,,this is why some people seem bright untill you hear them speak.
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Re: How often do you drain your racecar fuel cell (gas only)?
[Re: 440Brian]
#1872588
07/17/15 10:41 PM
07/17/15 10:41 PM
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Joined: Jan 2003
Posts: 19,372 Las Vegas
Al_Alguire
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 19,372
Las Vegas
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FWIW I run nothing but VP fuels. From our experience the extra insurance of draining the fuel after a race is cheap easy insurance and yes I have had fuel go bad.
"I am not ashamed to confess I am ignorant of what I do not know."
"It's never wrong to do the right thing"
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Re: How often do you drain your racecar fuel cell (gas only)?
[Re: 440Brian]
#1872667
07/18/15 12:43 AM
07/18/15 12:43 AM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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I added a shut off valve to the vent line (on top of the roll over valve) when I installed a new aluminum fuel cell. Will that work with overnight temperature and atmospheric pressure changes or is a rubber cap/plug a better choice because it will flex?
(sorry if I'm worried about ridiculous problems) Its a good idea IF you let the temp cool down before closing the valve... if you have a 100+ degree day and you close the valve and it drops to about 30* or so... it will collapse a plastic tank... its the thermo change along with the fuel... when I was testing burst pressure in stock tanks it took about 55-60 psi to blow a tank open(we always use water so it wouldnt literally blow up EDIT These were on steel tanks... plastic ones we were always concerned with temp
Last edited by MR_P_BODY; 07/18/15 12:48 AM.
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Re: How often do you drain your racecar fuel cell (gas only)?
[Re: MR_P_BODY]
#1872681
07/18/15 01:04 AM
07/18/15 01:04 AM
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Joined: Oct 2003
Posts: 7,506 Az
Crizila
master
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master
Joined: Oct 2003
Posts: 7,506
Az
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I added a shut off valve to the vent line (on top of the roll over valve) when I installed a new aluminum fuel cell. Will that work with overnight temperature and atmospheric pressure changes or is a rubber cap/plug a better choice because it will flex?
(sorry if I'm worried about ridiculous problems) Its a good idea IF you let the temp cool down before closing the valve... if you have a 100+ degree day and you close the valve and it drops to about 30* or so... it will collapse a plastic tank... its the thermo change along with the fuel... when I was testing burst pressure in stock tanks it took about 55-60 psi to blow a tank open(we always use water so it wouldnt literally blow up EDIT These were on steel tanks... plastic ones we were always concerned with temp If you can't control the environment you store it in, you better vent it - even if you store it in your enema bag! Good luck if you are storing E85 for any length of time.
Fastest 300
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