Originally Posted by
Truckracer
Its a very rare model engine of any kind that even comes close to sounding like its full scale brother. With that in mind, I prefer an engine that is reliable and produces the kind of power I need using a prop size that works well with a particular airframe. These days, 2 stroke gassers come closest to filling that requirement.
4 stroke gassers may one day fill my requirements but I have not yet seen one that is truly reliable yet still affordable. I don't miss the larger, fuel thirsty, 4 stroke glo engines I have sold.
This one sounds pretty realistic although it would be a better match for an 83" Brian Taylor Spitfire that was Merlin powered in the full scale version.
http://www.youtube.com/watch?v=wBickqgN_fM.
I converted mine to CDI & it cut fuel consumpsion to less than 1oz per minute W/15% Cool Power & still turns an 18 X 8 @ 8000 RPM..
I'm putting a 5.12 version of the Saito450R3 running the same CDI/methanol combo in my TF FW190A5 ARF.
http://www.youtube.com/watch?v=smY2G1_dDFI
I'm hoping to get the same fuel economy improvements & relative power & it sure will sound realistic in the Focke Wolf.
Non of my Saitos are "glow" engines they all run on methanol ignited by CH Ignitions CDI. I get 20-25% more HP than an equivelent "gas" engine & better fuel economy than GI versions.