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Old 05-01-2016, 11:04 AM   #15
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The best compressor for me was the Porter-Cable CMB 150 psi one discussed earlier. It is 120V AC powered, reasonably quiet and doesn't walk all over the ground when running. 3 points that were important to me.

The best modification was adding a polyurethane air hose to the compressor with quick disconnects >>> http://www.amazon.com/gp/product/B00..._al_bw_g328_i1 I hate those coiled up air hoses. This one is light and flexible.





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Old 05-01-2016, 11:48 AM   #16
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I have the Porter cable 120v. Works great.
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Old 05-01-2016, 12:14 PM   #17
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Taking this compressor for example you have 150 PSI at 1.8CFM
At 100 PSI it is only .94CFM and at 110PSI you get .9CFM

To inflate a 275/80R 22.5 tire from a pressure of 80 to 9-PSI it takes 49 seconds
To inflate from 90 to 110 it takes a little over 5 minutes.
To inflate from 110 to 130 it takes 6 minutes.

So, to go from 80 to 110 will take approx 6 minutes.

Not real efficient but it is only a 12 volt pump.

This should be fine, as nobody should let the tires get that low to start with. When the TPMS shows that they are 5 lbs low, it just takes less than a minute to get them up to pressure again.

20% under inflated is considered potentially damaging to the tire when it is running close to its weight limits.
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Old 05-01-2016, 12:20 PM   #18
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Thanks for you info. Looks like the Porter Cable 120V or the Craftsman egg shaped 150 psi is what I hearing is popular. If I were to put 5-6 lbs in a 19 inch tire. Saying I want to set tires at 82 lbs, how much time time would it take to fill to 82 lbs.
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Old 05-01-2016, 12:46 PM   #19
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Quote:
Originally Posted by dons2346 View Post
Taking this compressor for example you have 150 PSI at 1.8CFM
At 100 PSI it is only .94CFM and at 110PSI you get .9CFM

To inflate a 275/80R 22.5 tire from a pressure of 80 to 9-PSI it takes 49 seconds
To inflate from 90 to 110 it takes a little over 5 minutes.
To inflate from 110 to 130 it takes 6 minutes.

So, to go from 80 to 110 will take approx 6 minutes.

Not real efficient but it is only a 12 volt pump.
Yes, a nice 12V compressor that could do the job. If you do not have a hefty house battery system, they recommend you hook it up to the chassis 12 V battery and let the engine run to keep the compressor working properly or it will blow the inline fuse. IMO, if you have DP with auxiliary quick air connect, install an SMC Pneumatics pressure booster. It is compact, needs no power and costs about the same. There are some good threads on this forum about it. Also, a good article in the May, 2016 issue of FMCA Magazine.
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Old 05-01-2016, 01:03 PM   #20
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Yes, a nice 12V compressor that could do the job. If you do not have a hefty house battery system, they recommend you hook it up to the chassis 12 V battery and let the engine run to keep the compressor working properly or it will blow the inline fuse. IMO, if you have DP with auxiliary quick air connect, install an SMC Pneumatics pressure booster. It is compact, needs no power and costs about the same. There are some good threads on this forum about it. Also, a good article in the May, 2016 issue of FMCA Magazine.
Hey srh,
Been using air system stuff, i.e. tools, tire stuff, paint guns, air grinders and a whole lot more for decades and, have never heard of a "pressure booster". Just what is it and how does it boost pressure?

OP, not hijacking this thread, figure it's all related.
Scott
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Old 05-01-2016, 08:06 PM   #21
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Hey srh,

Been using air system stuff, i.e. tools, tire stuff, paint guns, air grinders and a whole lot more for decades and, have never heard of a "pressure booster". Just what is it and how does it boost pressure?



OP, not hijacking this thread, figure it's all related.

Scott

Take a look at this thread.....it has a picture and describes it. It basically doubles the pressure....so 75 psi in becomes 150 psi out

Portable Air Compressor
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Old 05-01-2016, 08:34 PM   #22
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Since nothing is free, doesn't the pressure booster cut the CFM in half ?
Maybe not a big deal with a engine mounted air brake compressor at high RPM.
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Old 05-01-2016, 08:48 PM   #23
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We carry the Porter Cable 150psi pancake compressor. Fits nicely in a bay, come with three nailers and utilize it for lots of different tasks.
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Old 05-01-2016, 08:59 PM   #24
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Those nailers come in real handy for tires.
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Old 05-02-2016, 07:38 AM   #25
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Those nailers come in real handy for tires.
LOL - Haven't had a tire fall off since I got the unit!
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Old 05-02-2016, 12:08 PM   #26
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LOL - Haven't had a tire fall off since I got the unit!
Hey Gordon,
Maybe I could borrow one of your nailers for use in making my Jeep tires/Wheels "Bead lock" units for running low tire pressure off road!!!
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Old 05-02-2016, 12:21 PM   #27
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Quote:
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Hey srh,
Been using air system stuff, i.e. tools, tire stuff, paint guns, air grinders and a whole lot more for decades and, have never heard of a "pressure booster". Just what is it and how does it boost pressure?

OP, not hijacking this thread, figure it's all related.
Scott
Here is a discussion on the pressure booster:
Portable Air Compressor
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Old 05-03-2016, 12:20 PM   #28
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Hey Gordon,
Maybe I could borrow one of your nailers for use in making my Jeep tires/Wheels "Bead lock" units for running low tire pressure off road!!!
I would be willing to give it a "go". I have just brad and staple nailers so are pretty small. If necessary I can borrow a framing or roofing nailer for extra "oomph". LOL
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