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surfer jim
Super Nomad
Posts: 1891
Registered: 8-29-2003
Location: high desert
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Ken C and Roberto bring up a good point...how to air UP... I didn't want to go down as no way to air up when done.....
DavidK....how do you air up after shell beach run?
Ken....how much does tank cost?...and how much does it air up (how many tires )
Roberto...does that run off of 120 ac or 12v dc?
I read somewhere about a PEP boy compressor....12v....for $30 that works good...anyone with experience or other 12 v dc compressor that gives good
results?.....
[Edited on 1-17-2006 by surfer jim]
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Neal Johns
Super Nomad
Posts: 1687
Registered: 10-31-2002
Location: Lytle Creek, CA
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Mood: In love!
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The best $40 or so compressor is the Truck Air. (by test - Harry Lewellyn (http.www.eco4wd.com/) tested a bunch of compressors). With four tires, it
will still be slow.
My motto:
Never let a Dragon pass by without pulling its tail!
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David K
Honored Nomad
Posts: 64855
Registered: 8-30-2002
Location: San Diego County
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Mood: Have Baja Fever
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Jim, I have a portable (built in battery) air pump... can run off cig lighter if battery gets low... It is slow, as most cig lighter pumps are... I
get 2 psi per minute fill rate in my BFG 16" tires. So starting from 15psi, it takes 7 1/2 minutes to get to 30psi. Those 30 minutes are spent making
out with Baja Angel! (well, maybe we have a beer or lunch as well).
The portable air pump is from Campbell Hausfeld...
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Ken Cooke
Elite Nomad
Posts: 8947
Registered: 2-9-2004
Location: Riverside, CA
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Mood: Pole Line Road postponed due to injury
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Viagra in a silver bottle
| Quote: | Originally posted by surfer jim
Ken C and Roberto bring up a good point...how to air UP... I didn't want to go down as no way to air up when done.....
Ken....how much does tank cost?...and how much does it air up (how many tires ) |
C02 is the fastest way to air up a tire - ~30 seconds per tire to go from 15 p.s.i. to 30 p.s.i. With C02, it is faster to air up than it is to air
down.
With an el China cheapo Costco/PepBoys air compressor, you'll be stuck waiting for hours to air your tires up, listening to the loud clatter of the
air compressor, and annoying your significant other looking like someone who doesn't know what he's doing. With a C02, your tires will pump up with
authority, like Viagra your tires will quickly assume a manly stature in mere seconds. A good C02 setup will cost you ~$400...
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David K
Honored Nomad
Posts: 64855
Registered: 8-30-2002
Location: San Diego County
Member Is Offline
Mood: Have Baja Fever
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OH jeeze Ken...
My sweety likes it slow...
Like I said I give her a full 30 minutes to enjoy...
(that's 7 1/2 minutes for each tire)...
No quickies!
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Roberto
Banned
Posts: 2162
Registered: 9-5-2003
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| Quote: | Originally posted by surfer jim
Roberto...does that run off of 120 ac or 12v dc?
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120V - that's why I need the inverter. But MANY TIME faster 12V compressors. A couple of minutes per tire and I'm done, and I inflate back up to
street pressure if I want to (50psi).
A CO2 tank will do a faster job, but it's much more expensive and needs to be refilled. Plus, I use the inverter for all kinds of things (computers,
coffee machine, small power tools ....).
[Edited on 1-17-2006 by Roberto]
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Sharksbaja
Elite Nomad
Posts: 5814
Registered: 9-7-2004
Location: Newport, Mulege B.C.S.
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| Quote: | Originally posted by Mexray
Of course those were the days down at Pismo Beach before the State took over the beach and cut back on the fun! In those days, you could run down
there on a three-day holiday and camp back in the dunes with 100's of your new best friends - and the noise and dune running would pretty much go on
around the clock! Crazy days, but most everyone survived without 'Big Brother' and the State of Calif Park Ranger N-zi's looking over our shoulders!
Goodbye Pizmo, Hello Baja California! |
Ah, the good ol days. Years ago I would make the run from Pahrump Nev. to Pismo in an old VW bus. Upon arrival I would air down the tires and drive
all over the dunes delivering firsworks to the awaiting throngs. Lots of fun until the State went Gestapo at all the beaches.
DON\'T SQUINT! Give yer eyes a break!
Try holding down [control] key and toggle the [+ and -] keys
Viva Mulege!
Nomads\' Sunsets
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bajataco
Nomad
Posts: 117
Registered: 11-26-2003
Location: Arizona
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| Quote: | Originally posted by Bruce R Leech
why is Co2 better than compressed air? I can get my dive tanks filled allot cheaper than buying Co2. |
Compressed air doesn't really compress much. Liquid CO2 is highly "compressible" because it is actually stored in the tank as liquid, which wants to
evaporate into a gas. This evaporation process builds enormous pressure inside the vessel, and a great deal of air supply when released through the
hose into your tires. As the liquid level in the tank drops, it just allows more room for the CO2 to evaporate, keeping it under pressure. With a
SCUBA tank, you will only get about as much volume of air as the size of the tank. So you will quickly exhaust your stored air with just one attempt
at refilling your tires. The CO2 on the other hand, is good for many repeated fill-ups, and it is FAST!!
There is no doubt that CO2 is the fastest way to air up your tires. However, like an on-board 12V air compressor, it has its advantages and
disadvantages. The trade-off (especially for someone doing extended trips in Baja) is that you can get an endless supply of "free" air from a
compressor. Better yet, at a relatively low payload cost. CO2 will cost you money every time you need to get the tank filled (including time and fuel
to take it to the retailer/shop to get it filled) and it has a limited supply, so once you run out, you are out. For a shorter trip to Baja this
likely isn't an issue. A 10lb. CO2 tank will probably fill about twenty 33" tires from 20-40 psi. That would allow a single vehicle on 33"s to air up
5 times. For the 10lb tank I cited in this example, 10 pounds is not the overall weight, it is 10lbs. of liquid CO2 - it actually weighs about 27lbs.
full. That is the little tank. The one more commonly seen is the 20lb bottle, so you could double that. If you are already loaded with bunches of
weight due to all of your 4wd accessories, camper, and/or camping gear, supplies, and toys, you may already be at or over your vehciles GVWR (gross
vehicle weight rating). In this case, waiting the extra time it takes to use a 12V compressor might be a wise choice. But for the ULTIMATE in speed
and convenience, the CO2 is where it's at. The ideal would be to have the option to use either one at your disposal. If you are doing a light trip,
take the CO2. If you are doing a heavy/extended boondocking trip, use the 12V.
I did an article on my own (12v compressor) on-board air setup at my website.
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David K
Honored Nomad
Posts: 64855
Registered: 8-30-2002
Location: San Diego County
Member Is Offline
Mood: Have Baja Fever
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Man you make a great web page! Good job Chris!!
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bajataco
Nomad
Posts: 117
Registered: 11-26-2003
Location: Arizona
Member Is Offline
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| Quote: | Originally posted by David K
Man you make a great web page! Good job Chris!! |
Thanks David 
By the way, I think I could have worded my post above a little bit better. Using a scuba tank, the air is indeed compressed (to what? 2,000-3,000
psi?) but I guess what I am getting at is the volume you get from air vs. CO2. Because of the CO2 being in a liquid form that becomes a gas, you get
much more volume of "air" from a tank of CO2 vs. a tank of regular air. Even though the SCUBA tank may be under enormous pressure, you don't get
nearly as much tire-filling power from it, and would soon run out.
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Sharksbaja
Elite Nomad
Posts: 5814
Registered: 9-7-2004
Location: Newport, Mulege B.C.S.
Member Is Offline
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Awesome stuff Ray! Gracias
DON\'T SQUINT! Give yer eyes a break!
Try holding down [control] key and toggle the [+ and -] keys
Viva Mulege!
Nomads\' Sunsets
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