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Old 09-29-2009, 09:51 PM   #11 (permalink)
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Just spend $40 for a 12v air compressor that looks like it has a good gauge... The gauge is the important part.

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Old 09-29-2009, 11:02 PM   #12 (permalink)
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Wait for a deal at Harbor Freight. You'll be able to get a reasonably good air compressor for $50 and a digital pressure gauge with fine adjustment valve for $15. It works much better than those cheap tire pumps.

I even added a few feet of 1/4" copper tubing (bent into a coil) between the pump and tank on mine so I can inflate the tires with cool air.
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Old 09-29-2009, 11:19 PM   #13 (permalink)
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For inflating tires; $35 yellow 12 volt compressor at pepboys.
End of discussion.
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Old 09-30-2009, 12:24 PM   #14 (permalink)
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Quote:
Originally Posted by dremd View Post
For inflating tires; $35 yellow 12 volt compressor at pepboys.
End of discussion.
Yup. A full size compressor is nice to have, but you don't want to carry it around in your trunk.
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Old 03-04-2011, 04:17 PM   #15 (permalink)
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Quote:
Originally Posted by Clev View Post
I have the cheapy cigarette lighter version. They have the cheaper one (fills a tire in as little as 8 minutes!) and the more expensive version (fills a tire in as little as 3 minutes!) If you have any kind of regular leak, I'd say go with the more expensive one. The cheaper one that fills a tire in 8 minutes also takes 8 minutes to take a tire from 38 psi to 51 psi.
What is the difference between a cheapy one and one that's expensive?

There are some 300 psi 12v compressors on Ebay for less than $20.
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Old 03-04-2011, 05:16 PM   #16 (permalink)
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My cheapy one was this one:

Walmart.com: Slime - Portable 12 Volt Tire Inflator with Built-in Gauge and Light: Automotive

After a few minutes of running, the tip of the cigarette lighter plug was so hot that it caused first degree burns. Eventually something inside the unit burned up, so I replaced it with another cheapy from somewhere else.
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Old 03-04-2011, 05:25 PM   #17 (permalink)
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How about one like this?

Should 300psi be enough to pump tires to 50psi fairly easily?

Also how much does one of these run down the battery?

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Old 03-04-2011, 05:51 PM   #18 (permalink)
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Should be fine, but for the same price, I'd pick one up from Target. That way, you have some recourse if it burns up in a week.

No worries about the battery. Even if you ran it for an hour, it wouldn't make a significant dent.
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Old 03-04-2011, 06:23 PM   #19 (permalink)
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Quote:
Originally Posted by johnlvs2run View Post
What is the difference between a cheapy one and one that's expensive?

There are some 300 psi 12v compressors on Ebay for less than $20.
the cheap ones run for about 10 mins before over heating. Sometimes they recover, sometimes they do not.

I highly recommend the Yellow one at Pepboys. Often times on sale for $25 Sometimes on sale for $20 You can always return to pepboys as well. It will run continuously for 6 truck tires (Load range E 245 75 R16 i think) from 30 psi to 90 psi without missing a beat. However, make sure that you outlet is up to snuff, these pumps draw a SOILD 15 amps at 12 volts.
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Old 03-09-2011, 11:01 PM   #20 (permalink)
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I ordered this 12v air compressor tonight.

And this AC to 12V DC power adapter converter.


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