bernouli equations will give you the formal answer to your query - a less
formal answer is 'pressure drop"



"NoOne N Particular" wrote in message
news
mark wrote:
I bought what is apparently the most powerful 1/2" drive impact wrench
available IR 2135 with 1000 ftlb or torque and am still finding it
weak. The other day it would not remove the bolts that hold on my
front brake caliper bracket and sometimes it wll not remove lugnuts. I
am using it at 125psi with 50' of 3/8" hose and 1/4" M (milton) quick
connects). Would going to 3/8" qc fittings help at all? I notived a
local tire shop has the air pressure at 150 psi. Is this what is
needed? How come air tools say never to go above 90 psi?

I was just looking at the specs for the 2135TiMAX and noticed that the
specs say minimum hose size is 3/8", but the air inlet is only 1/4". Air
consumption is listed as 5 cfm, but it does not give an air pressure.

Anyway, if the air inlet is 1/4", why would it help to put on 3/8" qc?

Wayne



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