Compressor Choice for Painting whole car. - Chevelle Tech
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post #1 of 23 (permalink) Old Nov 13th, 19, 1:58 PM Thread Starter
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Gene
 
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Compressor Choice for Painting whole car.

I'm getting ready to try my luck at painting with HVLP. My last effort at painting was an 15 tears ago with a Binks Model 7 suction cup gun with a 3Hp,22 gallon compressor. I'm looking at getting a DeVibliss Finishline 4 gun, which requires [email protected] PSI. I'm trying to keep the compressor under $1K, and see an Industrial Air 80 gallon single stage on Amazon, which will do [email protected],[email protected] PSI or a Harbor Freight 60 Gallon 2 stage, which will do 15.8 CFM @ 90 PSI, 16.4 CFM @ 40 PSI. I'm not seeing an 80 gallon, 2 stage in my budget. So for painting a whole car at once, is the 80 gallon more important than the # of stages? The Harbor Freight compressor is $150 cheaper, and seems to have great reviews, with the pump being from Italy, tank from USA, and motor from either USA or Mexico. Any opinions or lessons learned?

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post #2 of 23 (permalink) Old Nov 13th, 19, 4:54 PM
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Re: Compressor Choice for Painting whole car.

I've painted several cars with a single stage 60 gallon Kobalt compressor. It will keep up with a HVLP gun with no problem.
I'm sure some will have other opinions. Biggest concern is keeping the air dry as I'm sure you know.
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post #3 of 23 (permalink) Old Nov 13th, 19, 6:09 PM
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Re: Compressor Choice for Painting whole car.

Check out a TSC. They sell an Ingersoll Rand, 80 gal, 2 stage, 5hp, usually [email protected] handle what your doing, and will handle anything you do in the future as well. Plus, it's local, so no need to ship and deal with delivery and all that involves.
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post #4 of 23 (permalink) Old Nov 13th, 19, 7:56 PM
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Re: Compressor Choice for Painting whole car.

Don't waste your money on a single stage. 2 stage is much drier and pumps to a higher pressure which equates to more volume in the same size tank. I have a 5hp, 2 stage, 80 gallon. If you do any sanding or sand blasting, you will wish you bought a bigger compressor. 5hp, 60-80 gallon is a minimum for anyone that is going to use it for more than filling tires or a nail gun. The 5hp models are not even a true 5hp. It is really a 3hp motor that spins faster. Look at the tag on the motor. It will read 'special', not 5hp. A true 5hp requires 3 phase power.
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post #5 of 23 (permalink) Old Nov 13th, 19, 8:25 PM
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Re: Compressor Choice for Painting whole car.

Quote:
Originally Posted by 69SS454 View Post
Don't waste your money on a single stage. 2 stage is much drier and pumps to a higher pressure which equates to more volume in the same size tank. I have a 5hp, 2 stage, 80 gallon. If you do any sanding or sand blasting, you will wish you bought a bigger compressor. 5hp, 60-80 gallon is a minimum for anyone that is going to use it for more than filling tires or a nail gun. The 5hp models are not even a true 5hp. It is really a 3hp motor that spins faster. Look at the tag on the motor. It will read 'special', not 5hp. A true 5hp requires 3 phase power.
Wrong
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post #6 of 23 (permalink) Old Nov 13th, 19, 9:00 PM
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Re: Compressor Choice for Painting whole car.

I'm on my 3rd compressor and all I can say is it's never big enough, buy something 220 volt and an 80 gallon or more tank. Gas powered is better but thats a whole different price range.

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post #7 of 23 (permalink) Old Nov 13th, 19, 9:24 PM
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Re: Compressor Choice for Painting whole car.

That Harbor Freight 2 stage compressor gets great reviews.

It's what I would get :

https://www.harborfreight.com/5-hp-6...sor-93274.html

But I would look on Facebook Marketplace for a good used one before committing. There are a lot better deals on there than on Craigslist

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post #8 of 23 (permalink) Old Nov 13th, 19, 9:28 PM
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Re: Compressor Choice for Painting whole car.

Spend some money on good hoses that flow plenty of air to preclude pressure drop at the gun.

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post #9 of 23 (permalink) Old Nov 13th, 19, 10:46 PM
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Re: Compressor Choice for Painting whole car.

Quote:
Originally Posted by Dean View Post
Wrong
Which part is wrong? The 3 phase preference comment? Do you own a 5hp residential compressor?
https://www.grainger.com/search?sear...mpressor+motor
^Look at the different rpms of a residential vs. commercial compressor 5hp motor^

https://www.bing.com/images/search?v...1,2,3,4,6,8,10
^Look at the 'SPL' hp rating on this tag^

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post #10 of 23 (permalink) Old Nov 14th, 19, 10:38 AM
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Re: Compressor Choice for Painting whole car.

Quote:
Originally Posted by 69SS454 View Post
Which part is wrong? The 3 phase preference comment? Do you own a 5hp residential compressor?
https://www.grainger.com/search?sear...mpressor+motor
^Look at the different rpms of a residential vs. commercial compressor 5hp motor^

https://www.bing.com/images/search?v...1,2,3,4,6,8,10
^Look at the 'SPL' hp rating on this tag^
Well for one thing a 3hp motor can not be made into a 5hp motor by speeding it up.
Secondly, many 5hp motors are 240 volt single phase.
Yes I do own a 5hp single phase air compressor.
https://www.grainger.com/product/1AT...g!470549069254!
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post #11 of 23 (permalink) Old Nov 14th, 19, 10:54 AM
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Re: Compressor Choice for Painting whole car.

Quote:
Originally Posted by Dean View Post
Well for one thing a 3hp motor can not be made into a 5hp motor by speeding it up.
Secondly, many 5hp motors are 240 volt single phase.
Yes I do own a 5hp single phase air compressor.
https://www.grainger.com/product/1AT...g!470549069254!
That is exactly my point. The motor is not labeled 5hp from the manufacturer. The 5hp sticker is put on the compressor. A true 5hp motor is physically bigger and costs twice as much as the double speed motors that they use on these cheaper compressors.
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post #12 of 23 (permalink) Old Nov 14th, 19, 11:15 AM
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Re: Compressor Choice for Painting whole car.

Quote:
Originally Posted by 69SS454 View Post
That is exactly my point. The motor is not labeled 5hp from the manufacturer. The 5hp sticker is put on the compressor. A true 5hp motor is physically bigger and costs twice as much as the double speed motors that they use on these cheaper compressors.
Again, there are many 5hp motors that are single phase motors even if there are some like you said on cheaper air compressors.
SO, not all 5hp motors are three phase like you said.

https://www.amazon.com/s?k=10+hp+ele...l_8i8uy9dlyj_b

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post #13 of 23 (permalink) Old Nov 14th, 19, 11:23 AM
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Re: Compressor Choice for Painting whole car.

Quote:
Originally Posted by Dean View Post
Again, there are many 5hp motors that are single phase motors even if there are some like you said on cheaper air compressors.
SO, not all 5hp motors are three phase like you said.
You are right. They do make 5hp single phase motors. I am wrong about that. My point was that you will not get a true 5hp motor on a compressor for $1000.
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post #14 of 23 (permalink) Old Nov 14th, 19, 11:58 AM
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Re: Compressor Choice for Painting whole car.

Quote:
Originally Posted by 69SS454 View Post
You are right. They do make 5hp single phase motors. I am wrong about that. My point was that you will not get a true 5hp motor on a compressor for $1000.
Good advice, although the 60 gallon-5hp one at Harbor Freight is not bad for a non commercial home shop and does say 5hp on the motor tag, except that it's loud and sounds like a piece of junk compared to the 10 hp three phase one that I sold because my phase converter burned up. (I could kick myself now for not keeping it and replacing the motor with a single phase motor)

https://www.harborfreight.com/air-to...sor-93274.html
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post #15 of 23 (permalink) Old Nov 14th, 19, 1:42 PM
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Re: Compressor Choice for Painting whole car.

The ones that I would question are the 5hp rated motors that only show enough amps for 4hp or something like that.

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