Portable air tanks...
04-21-2003, 05:30 PM
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Portable air tanks...
I just bought a 11 gallon air tank from Kragen a/p today. They are on sale for $29.99. Just thought I would share this for those of you looking for one.
The tank is a great place for all those decals you collect, but dont want to put them on the car!
The tank is a great place for all those decals you collect, but dont want to put them on the car!
04-21-2003, 06:04 PM
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Chris,
I once bought a tank from Autozone, 8 or 10 gallon I think. The problem was when I filled it up at a gas station, I could only get 60lbs of air in the tank. At the track, once it dropped below 40lbs of pressure in the tank, it was worthless as my tires were at 40lbs and the pressure was equal. I now have a compressor and can generate more pressure,but I wonder how much I could put into the tank and still be safe (and get more than 20lbs of pressure out of a full tank).Please let me know what you think as I would like to get another tank (where is Kragen? on line?) Thanks in advance
I once bought a tank from Autozone, 8 or 10 gallon I think. The problem was when I filled it up at a gas station, I could only get 60lbs of air in the tank. At the track, once it dropped below 40lbs of pressure in the tank, it was worthless as my tires were at 40lbs and the pressure was equal. I now have a compressor and can generate more pressure,but I wonder how much I could put into the tank and still be safe (and get more than 20lbs of pressure out of a full tank).Please let me know what you think as I would like to get another tank (where is Kragen? on line?) Thanks in advance
04-21-2003, 08:15 PM
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I've been wondering about this also. Off roaders sometimes use what's call a <a href="http://www.expeditionexchange.com/powertank/indexmain.htm" target="_blank">Power Tank</a> which I would think would work in this situation. But I have not read or heard of anyone doing this at the track and I'm not sure why not. Does any know what the drawbacks to using a C02 tank like this at the track would be?
/net
/net
04-21-2003, 08:28 PM
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Eric, fortunately I have a compressor in the garage and am able to get more than 100 psi, it takes some time, but it will get there. The tank instructions say not to exceed 120 psi. I am not sure myself how long it will last. It wont be of much use once it gets down to around 40psi.
I usually bleed down throughout the day. Just wanted the ability to air back up for the drive home and also be able to experiment with lower pressures etc.
Kragen is a auto parts chain here on the westcoast. I think 'Shucks' and 'Checker' is the same chain, different name. No affiliation with them...
I usually bleed down throughout the day. Just wanted the ability to air back up for the drive home and also be able to experiment with lower pressures etc.
Kragen is a auto parts chain here on the westcoast. I think 'Shucks' and 'Checker' is the same chain, different name. No affiliation with them...
04-21-2003, 09:23 PM
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I use a Power Tank at the track to fill up before driving home. It works well. A single charge lasts most of the season. Rumors say that C02 pressures will vary with temperature more than air, but I have not noticed much if any difference.
04-22-2003, 12:35 PM
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</font><blockquote><font size="1" face="Verdana,Tahoma,Helvetica">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Helvetica">Originally posted by Eric in Chicago:
<strong>Chris,
I once bought a tank from Autozone, 8 or 10 gallon I think. The problem was when I filled it up at a gas station, I could only get 60lbs of air in the tank. At the track, once it dropped below 40lbs of pressure in the tank, it was worthless as my tires were at 40lbs and the pressure was equal. I now have a compressor and can generate more pressure,but I wonder how much I could put into the tank and still be safe (and get more than 20lbs of pressure out of a full tank).Please let me know what you think as I would like to get another tank (where is Kragen? on line?) Thanks in advance</strong></font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Helvetica">Hi Eric,
You need to find a different station or ask the guy in the garage to let you fill your tank from the line he uses with his air tools.
I bought a small tank from Wal-Mart and the local station near me maintains a 110-120 psi line pressure. Plenty of air.
<strong>Chris,
I once bought a tank from Autozone, 8 or 10 gallon I think. The problem was when I filled it up at a gas station, I could only get 60lbs of air in the tank. At the track, once it dropped below 40lbs of pressure in the tank, it was worthless as my tires were at 40lbs and the pressure was equal. I now have a compressor and can generate more pressure,but I wonder how much I could put into the tank and still be safe (and get more than 20lbs of pressure out of a full tank).Please let me know what you think as I would like to get another tank (where is Kragen? on line?) Thanks in advance</strong></font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Helvetica">Hi Eric,
You need to find a different station or ask the guy in the garage to let you fill your tank from the line he uses with his air tools.
I bought a small tank from Wal-Mart and the local station near me maintains a 110-120 psi line pressure. Plenty of air.
04-22-2003, 01:34 PM
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Anyone ever used one of these (aluminum) portable air tanks?
<a href="http://www.tricktank.com/tanks.html" target="_blank">http://www.tricktank.com/tanks.html</a>
85-125psi, aluminum, apart from price it seems pretty good, lightweight.
<a href="http://www.tricktank.com/tanks.html" target="_blank">http://www.tricktank.com/tanks.html</a>
85-125psi, aluminum, apart from price it seems pretty good, lightweight.
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04-22-2003, 06:53 PM
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</font><blockquote><font size="1" face="Verdana,Tahoma,Helvetica">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Helvetica">Originally posted by ltc:
<strong>Anyone ever used one of these (aluminum) portable air tanks?
<a href="http://www.tricktank.com/tanks.html" target="_blank">http://www.tricktank.com/tanks.html</a>
85-125psi, aluminum, apart from price it seems pretty good, lightweight.</strong></font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Helvetica">They look nice but I think I'll stick with my $17.95 Walmart Tank.
I got lots of other things I could use for the extra $$.
I don't know about you, but when I am on the track (when I really care about weight), the tank is in the paddock.
<strong>Anyone ever used one of these (aluminum) portable air tanks?
<a href="http://www.tricktank.com/tanks.html" target="_blank">http://www.tricktank.com/tanks.html</a>
85-125psi, aluminum, apart from price it seems pretty good, lightweight.</strong></font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Helvetica">They look nice but I think I'll stick with my $17.95 Walmart Tank.
I got lots of other things I could use for the extra $$.I don't know about you, but when I am on the track (when I really care about weight), the tank is in the paddock.
04-23-2003, 12:02 AM
#9
Three Wheelin'
I rigged an old regulator to have a standard air hose on one of the low pressure (80 psi) fittings it and connects to a scuba tank. With a standard fill of pure dry processed air (less heat expansion) its is the equivilant of 30 10 gallon air tanks and costs about 8 bucks to refill. Such a deal!
04-27-2003, 02:32 PM
#10
Go to a gas supplier like praxair see you phone book and get a small 3ft N2 tank. They have 1500lb of gas in there. You can then fill your tires with N2 a more stable pressure from heat changes and it is cheap 16 buck refill in Calif.
04-29-2003, 01:23 AM
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</font><blockquote><font size="1" face="Verdana,Tahoma,Helvetica">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Helvetica">Originally posted by John H:
<strong>Am I missing something? I just use the Porsche spare tire inflator at the track to adjust air pressures. Sure it takes awhile but...</strong></font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Helvetica">Hello John,
I used to do that but in AutoX, it can get pretty hectic in the pits (we runs groups of 20) and not alot of time between runs. The tank allows fast adjustments and no risk of burning up that compressor for when I really need it (hopefully never).
<strong>Am I missing something? I just use the Porsche spare tire inflator at the track to adjust air pressures. Sure it takes awhile but...</strong></font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Helvetica">Hello John,
I used to do that but in AutoX, it can get pretty hectic in the pits (we runs groups of 20) and not alot of time between runs. The tank allows fast adjustments and no risk of burning up that compressor for when I really need it (hopefully never).
05-01-2003, 03:45 PM
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Seemed like a good until a friend of mine with a 99 996 left it on inflating a tire and after a while it started smoking and gave up the ghost. The air tank takes a few seconds.
05-02-2003, 04:32 PM
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Ive used NOS in a NOS bottle (about 2 gals) pressurized with about 700psi, and 5lbs (max is 10lbs) of liquid NOS. $20 bucks to fill, and will last the season. best of all, it is a very small container for those that still drive to the track.
It is the equivilent of a 60 gal drum, cycled from 120psi to 90 psi 3 times. that a lot of
air!!
C02, NOS, Nitrogen, etc, all expand at the same rate, however, an water vapor in the air will effect expansion slightly as it gets hot. this will only vary pressures slightly. Using NOS, insures that the air is dry as well.
as the gas is used in the NOS bottle, the pressure drops, the liquid boils and creates more gas, to keep the pressure right around 7-800psi.
when the liquid is all gone, the pressure goes from 500psi down to empty 40psi or so, as would a normal 2 gal tank filled with 500psi of air. Until that happens, you have lots of air for tires and some light air tools. (got to use the long curly hose to act as a radiator to make sure tools dont get too cold, otherwise, for tire use, the air is cool to the touch)
MK
It is the equivilent of a 60 gal drum, cycled from 120psi to 90 psi 3 times. that a lot of
air!!
C02, NOS, Nitrogen, etc, all expand at the same rate, however, an water vapor in the air will effect expansion slightly as it gets hot. this will only vary pressures slightly. Using NOS, insures that the air is dry as well.
as the gas is used in the NOS bottle, the pressure drops, the liquid boils and creates more gas, to keep the pressure right around 7-800psi.
when the liquid is all gone, the pressure goes from 500psi down to empty 40psi or so, as would a normal 2 gal tank filled with 500psi of air. Until that happens, you have lots of air for tires and some light air tools. (got to use the long curly hose to act as a radiator to make sure tools dont get too cold, otherwise, for tire use, the air is cool to the touch)
MK
05-02-2003, 08:53 PM
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</font><blockquote><font size="1" face="Verdana,Tahoma,Helvetica">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Helvetica">Originally posted by mark kibort:
<strong>Ive used NOS in a NOS bottle (about 2 gals) pressurized with about 700psi, and 5lbs (max is 10lbs) of liquid NOS. $20 bucks to fill, and will last the season. best of all, it is a very small container for those that still drive to the track.
It is the equivilent of a 60 gal drum, cycled from 120psi to 90 psi 3 times. that a lot of
air!!
C02, NOS, Nitrogen, etc, all expand at the same rate, however, an water vapor in the air will effect expansion slightly as it gets hot. this will only vary pressures slightly. Using NOS, insures that the air is dry as well.
as the gas is used in the NOS bottle, the pressure drops, the liquid boils and creates more gas, to keep the pressure right around 7-800psi.
when the liquid is all gone, the pressure goes from 500psi down to empty 40psi or so, as would a normal 2 gal tank filled with 500psi of air. Until that happens, you have lots of air for tires and some light air tools. (got to use the long curly hose to act as a radiator to make sure tools dont get too cold, otherwise, for tire use, the air is cool to the touch)
MK</strong></font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Helvetica">Yikes <img border="0" title="" alt="[Eek!]" src="eek.gif" /> Using NOS to fill your tires!
i am no expert in this topic, butNOS is a powerful oxidizer (that's way it is used to boost engine power (more oxygen per volume than air, means you can put more fuel and gernate more power). I would expect to NOS to oxidize the the rubber in the tires and make it brittle. The reliablility folks call this rapid aging. Increasing temerature and pressure increase the rate that this happens.
IMHO, this is to be avioded since the failure will be from the inside out and may not be detected until it is too late.
<strong>Ive used NOS in a NOS bottle (about 2 gals) pressurized with about 700psi, and 5lbs (max is 10lbs) of liquid NOS. $20 bucks to fill, and will last the season. best of all, it is a very small container for those that still drive to the track.
It is the equivilent of a 60 gal drum, cycled from 120psi to 90 psi 3 times. that a lot of
air!!
C02, NOS, Nitrogen, etc, all expand at the same rate, however, an water vapor in the air will effect expansion slightly as it gets hot. this will only vary pressures slightly. Using NOS, insures that the air is dry as well.
as the gas is used in the NOS bottle, the pressure drops, the liquid boils and creates more gas, to keep the pressure right around 7-800psi.
when the liquid is all gone, the pressure goes from 500psi down to empty 40psi or so, as would a normal 2 gal tank filled with 500psi of air. Until that happens, you have lots of air for tires and some light air tools. (got to use the long curly hose to act as a radiator to make sure tools dont get too cold, otherwise, for tire use, the air is cool to the touch)
MK</strong></font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Helvetica">Yikes <img border="0" title="" alt="[Eek!]" src="eek.gif" /> Using NOS to fill your tires!
i am no expert in this topic, butNOS is a powerful oxidizer (that's way it is used to boost engine power (more oxygen per volume than air, means you can put more fuel and gernate more power). I would expect to NOS to oxidize the the rubber in the tires and make it brittle. The reliablility folks call this rapid aging. Increasing temerature and pressure increase the rate that this happens.
IMHO, this is to be avioded since the failure will be from the inside out and may not be detected until it is too late.