air compressor size....

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lazyfcker
Posts: 221
Joined: Tue Jan 25, 2005 3:22 pm
Car: 1991 240sx hatchback

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wasnt to sure where to put this...let me know if anywhere else would be better, but im looking into getting a air tool set-up for when i start to do more work on my 240. I cant figure out which size air compressor to buy, like what size gallon, and what horsepower to get. I'm looking at getting this impact wrench http://www.toolbarn.com/product/portercable/PT501/ or this one from home depot (link isnt working so here is the info on it.....

HUSKY1/2 In. Impact WrenchModel H4140

At 5 1/2 lbs., this Husky air tool deliver the highest horsepower in its class. With 500 ft. lbs. of maximum torque, it has been engineered and designed for the most demanding of fastening applications. You'll find the built-in regulator a convenient tool for adjusting your power requirements. The through-handle exhaust and patented muffler helps to reduce noise level while the internal components are protected by a steel housing. This tool offers 1,300 Impacts per minute and 8,000 RPM (free speed) no load. The Home Depot warrents this Husky Air Powered tool to the original user to be free from defects in material and workmanship.

• Provides up to 500 ft. lbs. of maximum torque.• 1300 IPM• Selectable power output control• Avg 3.5 CFM at 90 PSI• Oil bath clutch lubrication• Highest Horsepower in its class• Hardened Steel Anvil Bushings• Patented Muffler

Internet/Catalog # 165631Store SKU# 666531 Price: $99.97/ea)

i'll be using these tools for pulling the engine and swapping transmission's so please let me know if these tools will do the job just fine, and hopefully i can get help on which compressor to buy. (trying budget this also)


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benemorius
Posts: 1937
Joined: Tue Jun 08, 2004 5:39 pm
Car: s13, s13, eg, e36

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One of the key things to look for in a compressor is it's SCFM rating. The tool you quoted requires 3.5 SCFM while operating at 90 psi. (though the tool in the link says 4.2....) It is highly advisable to get a compressor that exceeds this, though if it is rated lower it won't keep the tool from working or anything.

Aside from that the two questions I would ask you are how big can your wallet afford and do you know your brands well. Pick a quality brand and enough air flow for the tools you plan to use, then just get the biggest tank your wallet can comfortably afford. Well...not literally, but you get the idea.

There are plenty of other numbers and specs to research and compare, but I'd say you can safely keep it this simple.

lazyfcker
Posts: 221
Joined: Tue Jan 25, 2005 3:22 pm
Car: 1991 240sx hatchback

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i wasnt really wanting to spend over 200 on a tank, and no more than 100 on the impact wrench.

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benemorius
Posts: 1937
Joined: Tue Jun 08, 2004 5:39 pm
Car: s13, s13, eg, e36

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I think Craftsman has a nice 15 gallon for about that price. I'm not really familiar with any other brands. You'd be fine with that one for the most part, but you may be happer later down the road if you spend an extra $50-$100 more for the bigger tank.

lazyfcker
Posts: 221
Joined: Tue Jan 25, 2005 3:22 pm
Car: 1991 240sx hatchback

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ok thats cool...i found a nice Husky impact wrench for $50 but it max's out at 260ft/lbs torque and 6500rpm (free speed, no load). Would this wrench handle the job with no problem...job meaning, pulling the motor and putting new one in and swapping out my auto transmission for the 5speed i have? Thanks

NISTECH
Posts: 10585
Joined: Sun May 25, 2003 4:17 am

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260ft pounds is planty of torque for just about any job. be easy with it if you plan to reinstall any bolts in the engine bay as it has the ability to snap them off.

lazyfcker
Posts: 221
Joined: Tue Jan 25, 2005 3:22 pm
Car: 1991 240sx hatchback

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Ok, so now i dont have to spend extra money on one that has more than 300ft/lbs. i think im just going to buy this really nice set i found at homedepot, comes with all Husky brand things,

HUSKY36 Piece Impact And Ratchet Kit With 2 Ton Trolley Jack & Jack StandsModel H0904K

This 36 Piece Impact and Ratchet kit includes a 2 Ton Trolley Jack and Jack Stands. The 1/2 In. impact wrench is designed for general fastening applications. It offers a built-in regulator for convenient power adjustment, a rubber nose piece and a ring-type retainer for quick socket changes. The 3/8 In. Ratchet wrench is designed for a wide variety of fastening applications. This tool features a lever type throttle for variable speed control, front exhaust directs air away from operator and a ball type socket retainer for quick and easy socket removal.

• Includes 1/2" Impact Wrench, 3/8" Ratchet Wrench, 2 Ton Trolley Jack and Jack Stands• 1/2'' Impact Wrench features 550 IPM (Impacts per minute), 260 ft. lbs. maximum torque and 6500 RPM (Free Speed, No Load).• 3/8'' Ratchet Wrench features 170 RPM (Free Speed) and 50 Ft. Lbs. (Maximum Torque)• Quality Husky Tools

price is $60.00

what yall think about this set?

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benemorius
Posts: 1937
Joined: Tue Jun 08, 2004 5:39 pm
Car: s13, s13, eg, e36

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I'm on my way out the door so I don't have anything to say about the specs of the tools and whatnot, but I must say - somebody is smokin' something if all that stuff can be had for $60.

lazyfcker
Posts: 221
Joined: Tue Jan 25, 2005 3:22 pm
Car: 1991 240sx hatchback

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so i went to go price out some parts today with the compressor and impact wrench....the one with the kit i listed above has a minimum 26gal tank!!!!! Now i come to you all who have used impact wrenches before and ask, if i was to run this wrench ( 260 ft. lbs.) on the craftsman 15gal 3hp/150psi tank that pushes out 4.9 SCFM at 40psi and 3.5 SCFM at 90psi work fine together...like would i have to keep stopping to let the air tank fill up again or what? I am confused right now and i really dont want to buy that tank or this wrench and not be able to use it properly. PLease let me know what you mechanics recommend me to do before i waste my money. Thanks

EDIT:: or should i spend my money on nice sets of tools, torque wrench and not worry to much about this....(remember i'll only use it for taking out the motor and swapping auto to 5speed transmission)

NISTECH
Posts: 10585
Joined: Sun May 25, 2003 4:17 am

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This really depends on how fast you are , but you will likely have to stop once in a while to let it build pressure with just about any home tank.

lazyfcker
Posts: 221
Joined: Tue Jan 25, 2005 3:22 pm
Car: 1991 240sx hatchback

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im pretty slow, lol....this will be my first engine pull


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