RE: SAP 180 (Syssa Performance)
I like the box Tele74. Have you flown it yet? What's the in-flight noise performance like?
I do not consider myself a gasoline engine expert. I've had issues with throttle curve choices too. The best arrangement I've found so far is sort of an S.....at low to mid stick, servo output is relatively slight. Mid to high stick, servo travel is much faster.
I think walbro carbs with their butterfly throttle valve let in a lot of air quickly. The SAP has a fairly large carb throat and that tends to make response less linear. By comparison, the throat diameter of the SAP is at least as large as that of the ZDZ40 cc I've been playing with lately.
BTW- I am not very happy with the ZDZ's performance. Nowhere near the output of the SAP but the engine is new and very tight still. I may change my opinion after a couple gallons, but I'll tell ya, the SAP has spoiled me due it's simple and easy field manners