Quincy Air Compressor

How well will an impact wrench rated at 9.5 CFM work with an air compressor rated at 4.1 CFM?

I understand that the wrench will still turn but how much torque do you think it will have counter clock wise? I think I will need well over 350 ft./lbs. to remove the bolt holding on my harmonic balancer.

Ingersoll-Rand 2141, Average Air Consumption (CFM): 9.5, Speed – No Load (RPM): 7,250, Max. Torque (ft.-lbs.): 1,200, Variable Speed: Yes

Quincy H1214PN 2 Hp Electric Air Compressor, 4.1 cfm @ 100 psi

http://www.amazon.com/Ingersoll-Rand-2141-4-Inch-Impact-Wrench/dp/B0002SRMUQ

http://www.texastooltraders.com/Air-Tools-Compressors/Compressors-Parts/Electric-Compressors/Clearance-NEW-Quincy-p6887930-1-2.html

No need for a 1200 ft lbs impact. I use a 625 ft lbs one to take cars fully apart with (all of engine apart, suspension, etc)

No car or truck will take 350 ft lbs to break loose the damper bolt. Maybe an 18 wheeler rig engine but thats it.

Most cars/trucks had the damper bolt torqued to 50-100 ft lbs. Will only need 50-75 ft lbs over that to break it free at most, so no more than 125-175 ft lbs needed (in fact most will loosen with 75 ft lbs)

Look at these impacts
425 ft lbs, uses 4 cfm

http://www.harborfreight.com/air-tools/impact-wrenches/1-2-half-inch-twin-hammer-air-impact-wrench-94803.html

625 ft lbs, uses 4.7 cfm (this is the one I have and use)

http://www.harborfreight.com/1-2-half-inch-impact-wrench-2623.html

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