Choosing a new pump replacement for my SS5

[skhunt42]

I made a post earlier about rebuilding my SS5 but I also started getting into the territory of replacing the pump entirely. I use a lot of hair for HVLP & Sandblasting so I need the best motor for my buck.

I am leaning towards the Eaton APP3Y0518S (Single Stage?)

5 HP Air Compressor Pump, 18 CFM

Eaton Compressor carries a wide selection of air compressor pumps, including this 5HP, 18 CFM air compressor pump.

eatoncompressor.com

(It's saying it's 18 cfm displacement but 14 cfm of usable air?)

or

Harbor Freight MCGRAW

https://www.harborfreight.com/5-hp-175-psi-2-stage-v-style-cast-iron-air-compressor-pump-59672.html

(This one is saying 15.0 CFM @ 90 PSI?)

My Ingersoll SS5 is saying it can do 18 CFM @ 90 PSI, so it looks like I'll be downgrading even on the 2 stage pump.

 

[The Cobbler]

2 stage pump doesn't necessarily provide more CFM , they do produce higher pressures tho.