13 cfm is over the top for a minimum requirement...what would happen if I only had 8 cfm?

Hi Jeffrey! Thank you for your question. The 3M 26778 Performance Spray Gun needs at least 13 cfm in order to spray properly. Lower cfm, paint may sputter and inconsistent spraying.

My compressor is 5.4 scfm at 90 psi. What would the scfm be at 30 psi after the regulator? Or is that even the right way to think about it?

I can't say what your compressor will make at 30 psi. I have a compressor that makes 14 cfm at 90psi and it was barely able to supply enough air for this gun.

ASIN	B00GNKVOVA
Brand	3M
Brand Name	3M
Colour	Silver
Customer Reviews	4.7 out of 5 stars 473 Reviews
Global Trade Identification Number	00051131267787, 00068060533548
Hose Length	3 Metres
Included Components	1 Spray Gun Starter Kit
Item Dimensions W x H	23.8W x 22.9H centimetres
Item Type Name	3M Performance Spray Gun Starter Kit, 26778, Includes 3M PPS 2.0 Paint Spray Cup System, 15 Replaceable Gravity HVLP Atomizing Heads, Air Control Valve
Item Weight	3 Pounds
Item weight	3 Pounds
Manufacturer	3M
Manufacturer Part Number	26778
Material	Stainless Steel
Material Type	Stainless Steel
Maximum Pressure	1000 Pound per Square Inch
Model Name	3M Performance Spray Gun Starter Kit, 26778, Includes 3M PPS 2.0 Paint Spray Cup System
Model Number	26778
Power Source	Pneumatic
Recommended Uses For Product	Cars, Trucks, Furniture, Cabinetry, Commerical Vehicles, Marine, Industrial, Aerospace
Recommended uses for product	Cars, Trucks, Furniture, Cabinetry, Commerical Vehicles, Marine, Industrial, Aerospace
Style Name	Gravity Feed Kit
Tank Volume	650 Millilitres
Tank volume	650 Millilitres
UPC	051131267787 068060533548
Unit Count	1.0 Count

3M Performance Spray Gun Starter Kit, 26778, Includes PPS 2.0 Paint Spray Cup System, 15 Replaceable Gravity HVLP Atomizing Heads, Air Control Valve

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