Scratching my beard and thinking about a DIY turbine paint sprayer

Hi,

I don't paint very much, and my compressor absolutely isn't up to the task anyway. For how often I want for a decent spraying method, it's not worth upgrading the compressor and certainly isn't worth buying a "real" turbine painting setup. Plus, I love making things.

So, I'm thinking I might try to fabricobble a DIY turbine with a cheap 4-stage pump from God-knows-where. Generally speaking, they appear to be in the 10 psi and 30 - 40 CFM range, not including line losses.

I've found a few ancient threads in which a guy cooks up a similar plan, and is immediately besieged with claims that any HVLP guns not specifically intended for turbine use won't work. Looking at the specs for a typical gun, I get it... they want more pressure. 

What I haven't found is a clear picture of what's actually different inside a typical compressor-powered HVLP gun and one that's made for a turbine. Really, I'm wondering if there's any hope of fudging things to allow for a much cheaper typical HVLP gun for turbine use. 

Any insight? Thanks!

Never thought of DIYing one but I'm in a similar situation compressor-wise. I've often wondered how well something like this might work for occasional paint work. 

https://www.harborfreight.com/high-volume-low-pressure-spray-gun-kit-44677.html

with the 20% coup that's right at $100 folks. 

In reply to Robbie :

Perfect. I have a ton of landscaping ties that need to be restained and I was dreading the idea of mopping them. Pressure wash, dry, then shoot with stain.

found this in the reviews:

"Yes - you can paint a car with it" and the following pic:

Looks like I might be trying this.