This is an interesting thread for my because I am much more a motor head that a competent pilot
and I have a LOT more time tinkering (tuning, rebuilding, hopping up) with 2 and 4 stroke engines from .049 up to 560CI
All ---!!! Need CLEAN fuel, and every one has a defined fuel metering orifice size....obviously a Cox, Cyclon, Norvel .049 needs to pass fuel through a very small needle valve...a Honking monster 500+ CI big block Chevy with Naturally aspirated twin Holly 800CF has main jets that are huge in comparison...BUT BOTH require fast, clean, free flowing fuel
whats the point?
??...
I personally find ALL the model airplane filters wanting...but I do use them as insurance... but when dealing with my fuel, be it store bought, or self made...I use very large auto fuel filters of know pedigree.... Hell I have even filtered large amounts of racing fuel through a gang of OIL* filters.... (55 gallons for Nitro Meth blends...in to go cart 5 gallon jugs)
* oil filters actually have a lower mesh filter size
I know some think a coffee filter is cool and cheap or a cone shaped paint filter.... I assure you, viscosity of paint and coffee are very wide apart and it seems logical that coffee filter is good....but BOTH are wrong for the liquid WE are filtering....
Glow fuel is NOT water with some caffeine.. it is much MORE viscous
Glow fuel is NOT thinned Paint ...It is Much LESS viscous
Auto zone
Napa
O'Reiles
What ever, they all carry a large line of FUEL filters and mostly they all will pass 2 stroke oil laden fuels with a great amount of filtering and still have fair i great flow rates