What air compressor to get? - SR20 Forum
 
Thread Tools
#1 (permalink) Old 02-09-2007, 03:05 AM
SE-R Newbie
 
Join Date: Sep 2006
Location: CORVALLIS, OR
Posts: 232
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
(Thread Starter)
What air compressor to get?

Well i'm looking for an air compressor.
my budget is $100~150

i'm looking for something for: air tools, auto body/part painting, light parts media blasting

i'm looking at 4 different models, the one thing bothering is the specs are confusing..

2 things i'm confused about
- comp1 has more flow @40psi than comp2 but @90psi it has much less
- comp2 has same flow as comp3 even though it's has 1.5HP less..


HP...gal....SCFM@40psi...SCFM @90 psi..price
3......21.......8.8.....................3.5....... .150
2.5....8........7.2................... .5.6 .......109
4......10.......7.2.....................5.6 .......140
1.75..4.........5.2.....................4.2....... .90

comp1:

comp2:

comp3:

comp4:




FYI, these are harbor freight stuff

Last edited by RMYC; 02-09-2007 at 03:18 AM.
RMYC is offline  
Sponsored Links
Advertisement
 
#2 (permalink) Old 02-09-2007, 10:42 AM
gee, eh? 16...
 
Join Date: Mar 2005
Location: Philly
Posts: 559
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 17 reviews
You might want to go with a compressor that has a higher 90 psi rating if you're planning on using it to paint. What you're looking for is the compressor with the highest rating at 90 psi. Also, if you don't feel like oiling the compressor then you should try to look for an oilless type. If you're seriously planning on using it to paint, I'd invest in a model that's a little bit more expensive but flows at a higher rating.. maybe somewhere around 10 CFM @ 90 psi. Might as well spend the money now than have to spend twice the money later, you know? For media blasting and air tools, those 4 compressors you listed should be enough. I would go with either one of the 5.6 CFM's though.. you won't have much downtime, if at all, with higher flow ratings at 90 psi using the compressor with air tools and sand blasting.



I'd also recommend any Craftsman compressor.. any compressor they sell at Sears. I got mine from there and I love it. I forget the specs on it, but I'm pretty sure it flows around 6 CFM @ 90psi. It's a bit more expensive than those Harbor Freight ones, but again, it's not Harbor Freight and it does flow more CFM more efficiently. (2hp 6.4 CFM @ 90psi)

Here's the one I got:
http://www.sears.com/sr/javasr/produ...seBVCookie=Yes

I just use it for sand blasting and air tools. It works perfect.

Last edited by wildmane; 02-09-2007 at 10:52 AM.
wildmane is offline  
#3 (permalink) Old 02-10-2007, 01:49 PM
SE-R Newbie
 
Join Date: Dec 2005
Location: Non-emissions part of IL
Posts: 161
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
only bad thing about the oil less types are they are loud as sh*t compared to the oil type, and yes you want the most 90psi cfm rating. And the last one is more for framing nail guns and such those tanks run out quick, try going to local hardware stores and see what they offer.

I got this one http://www.farmandfleet.com/catalog/...54&h=050104001 I didnt want it but I dont like oil less buddy had the one wildmane has and it caught on fire when we were grinding a lot of stuff. The one I wanted they sold out the day I needed my air tools it was from another farm and fleet type place thing was like 12.9@40 and 8.0@90 for the same price both were on sale for 250.

1992 Pontiac Firebird
1999 Nissan Frontier
1999 Chevy 2500 silverado

http://www.cardomain.com/id/unclebenz
99srnissan is offline  
#4 (permalink) Old 02-10-2007, 11:33 PM
SE-R Nut
 
Join Date: Jan 2004
Location: Toronto
Posts: 1,103
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 17 reviews
none of the above.........look for an oil lubricated, min 4.5 scfm @90psi

i wish i can give some material to read there is a compressor thread in this section.


trini

Car shopping made easy! We do the work for you while you save time, money, and hassles! Visit us at Personal auto brokers.com

Karting Vist............www.Torontokartstands.com

Last edited by trinispeed; 02-10-2007 at 11:35 PM.
trinispeed is offline  
#5 (permalink) Old 03-04-2007, 10:50 AM
AKA-- JJKAMIKAZE
 
Join Date: Jul 2005
Location: Richmond VA
Posts: 574
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 8 reviews
like the others said do not buy an oiless one. i bought a 150psi oiless one and it is really loud and wont push airtools or sandblase. you need to spend about 800 on an aircompressor for extended air tool use and media basting.
NismoTheDog is offline  
#6 (permalink) Old 03-06-2007, 12:12 PM
SE-R Newbie
 
Join Date: Sep 2006
Location: CORVALLIS, OR
Posts: 232
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
(Thread Starter)
ALL these air oil operated units... oilless sucks
RMYC is offline  
#7 (permalink) Old 03-09-2007, 09:52 PM
Proud father of two
 
Join Date: Nov 2001
Location: Chicago
Posts: 1,236
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 5 reviews
You want a belt-driven oil operated unit. The beltless designs are loud as hell and suck.

Try something like this from Home Depot:

HUSKY
2.0 Running Hp 26 Gal Vertical Compressor

Model VT6315
Price: $379.00/ea

A solid CAST IRON, twin cylinder compressor pump for extreme durability. Offers 135 PSI maximum pressure and air delivery 6.5/5.5 SCFM @ 40/90 PSI. Features pneumatic tires, efficient Solberg style intake filter, and a heavy-duty handle.

• Up to 5,000 hours of extended life
• Space saving vertical tank is ideal for the garage or limited space environments
• Sturdy, robust handle and wheels for easier portability
• Designed to channel air over the pump for maximum cooling
• Automotive style changeable air filter
• Protective belt guard designed to channel air to cool the pump
• High quality oversized gauges
• American made CAST IRON pump
• 26 Gallon vertical tank
• Semi-pneumatic tires
• Over 35 percent quieter and 60 degrees cooler than aluminum pumps with cast iron sleeves

Internet/Catalog #100063473
Store In-Stock SKU # 723883

Last edited by blackb13; 03-09-2007 at 09:55 PM.
blackb13 is offline  
#8 (permalink) Old 03-12-2007, 01:22 PM
SE-R Lightweight
 
Join Date: Apr 2006
Location: Milwaukee WI
Posts: 343
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 11 reviews
CFM is the key. Get the highest CFM posible (in your price range) We have a 60gal 11 CFM and we wish we went bigger.

[SIGPIC][/SIGPIC]
For your Powder Coating needs!
Website: LATE NIGHT CUSTOM

P.M. me for more information.
Gallery: http://s28.photobucket.com/albums/c2...oat/?start=all
Email: latenightcustom@yahoo.com

1990 Civic
1991 3000GT VR-4
1987 FZ 600
WTB SE-R
LateNightCustom is offline  
#9 (permalink) Old 03-12-2007, 01:39 PM
!!!!CAUTION!!!!
 
blurr.rt.by.you's Avatar
 
Join Date: Jun 2004
Location: turbo alley and 108st
Posts: 3,992
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 69 reviews
comp2 is a peice of junk i bought it and wish i hadnt. i wanted to use it with mt sandblasting cabinet and it cant flow enough for the pressure needed.

***GARAGE SALE***
http://www.sr20forum.com/mechanical-oem-part-outs/215172-garage-clean-up-sale.html

http://www.sr20forum.com/mechanical-oem-part-outs/217115-more-stuff-sale.html
blurr.rt.by.you is offline  
#10 (permalink) Old 03-12-2007, 02:25 PM
SE-R Nut
 
Join Date: Apr 2001
Location: New York
Posts: 1,166
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 4 reviews
I just bought one for my brother at Lowes for $400...it a Kobalt which uses a motor from Bellevedere as verified by others to be a good motor. In anycase, they said look for the CFM not SCFM. Companies like CH, Craftman list by SCFM to jack up the ratings. Air tools require 15-20CFM to be run, air guns need around 10CFM@40psi to run, none of the low budget ones will be able to run it efficiently. Belt driven, oil motors that run at 220V are pretty much the only ones. Try searching craigslist for used tools...there are some good deals sometime.
SucKit is offline  
#11 (permalink) Old 03-12-2007, 03:13 PM
SE-R Newbie
 
Join Date: Sep 2006
Location: CORVALLIS, OR
Posts: 232
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
(Thread Starter)
what's scfm?
RMYC is offline  
#12 (permalink) Old 03-23-2007, 04:28 PM
gee, eh? 16...
 
Join Date: Mar 2005
Location: Philly
Posts: 559
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 17 reviews
SCFM is based on the mass of the air flowing through, not the volume. The manufacturers probably pick the temperature and humidity that makes the SCFM the highest. ACFM (CFM) is the "Actual" CFM that is being pushed through a system. Having a high SCFM rating could mean jack shit when you're not in the standard conditions that the manufacturer rated the compressor at. THat's why you want to look for CFM, not SCFM.
wildmane is offline  
Sponsored Links
Advertisement
 
Reply

  SR20 Forum > Main Forums > Garage Tips & Tricks


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

 
For the best viewing experience please update your browser to Google Chrome