Maybe this is an issue with the regulator? What about plumbing in a fitting that bypasses the regulator or going with an over sized regulator. For short busts a 3/8” 25' hose should be more than sufficient for 90ftlb lugnuts.
School me on wimpy impact gun
- Thread starter Runamuk13
- Start date
There's a QC after the gauge so 90 on that gauge ain't 90 at the gun.
PROBLEM SOLVED!!
I replaced the 1/4" quick-disconnect couplers with 3/8" couplers and now the impact gun spins the lug nuts off without even wheezing! No coughing, no chugging, no chattering, just BRRRRRRR, and the nut is off and spinning around on the garage floor like a toy top! SWEET!
A little more detail......
I replaced the quick-disconnect couplers at the compressor, both ends of the air hose, and the inlet of the impact gun.
I did not replace the crimped-on, male-threaded ends of the 3/8" hose. They are still 1/4 in-18 NPT.
The 1/4" quick-disconnect couplers have a ID of .200. The 3/8" couplers have an ID of .275 (see picture). If I did the math right, that is a 77% increase in CFM air flow!! All of you that said "get more air to the gun", were exactly right!
Testing both the 1/4" and 3/8" couplers, the PSI at the gun remained about the same - 110 psi with trigger NOT pulled. Approx 60 psi with trigger pulled. Even though the PSI stayed about the same, the increased air flow (CFM) did the trick.
Thanks to all for helping me out.
I'm gonna go play "NASCAR pit crew" just because I can! hahaha
I replaced the 1/4" quick-disconnect couplers with 3/8" couplers and now the impact gun spins the lug nuts off without even wheezing! No coughing, no chugging, no chattering, just BRRRRRRR, and the nut is off and spinning around on the garage floor like a toy top! SWEET!
A little more detail......
I replaced the quick-disconnect couplers at the compressor, both ends of the air hose, and the inlet of the impact gun.
I did not replace the crimped-on, male-threaded ends of the 3/8" hose. They are still 1/4 in-18 NPT.
The 1/4" quick-disconnect couplers have a ID of .200. The 3/8" couplers have an ID of .275 (see picture). If I did the math right, that is a 77% increase in CFM air flow!! All of you that said "get more air to the gun", were exactly right!
Testing both the 1/4" and 3/8" couplers, the PSI at the gun remained about the same - 110 psi with trigger NOT pulled. Approx 60 psi with trigger pulled. Even though the PSI stayed about the same, the increased air flow (CFM) did the trick.
Thanks to all for helping me out.
I'm gonna go play "NASCAR pit crew" just because I can! hahaha
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sberry
Banned
Yes but it's minor. These are 74 cfm connectors,the gun is probably 25. The qc probably is a pinch but thru the big ole fat t none. I thought someone had posted some of the losses, what was it thru the fitting rating. I think the listing on the **** ole auto was about 35 and was a couple # maybe but it's from poor recollection so don't quote me. This fitting is suitable for 3x4 guns easy.
sberry
Banned
Increase in air flow will drop the psi. This needs to be turned way up to get to full operating, having it turned up allows it make up for some losses thru connectors. I do agree with Matt that in a perfect world the gauge should be on the other side of the connector.
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