I have not run your prop but have used both the 18 x 6 and the 18 x 8 Mejzlik props on my OS 1.60's in Chipmunks, Giles 202's and this Cap 232. The motor handles them well and they gave good flight characteristics.
I would fly it (the CAP) with the 18 x 6W to keep the engine cool and also keep the speed down.
Regards,
Eric.
ORIGINAL: Lou55
I'm going to run a APC 18x8W on this with the 1.60 in it after break in. Any thoughts on that prop choice? I have an 18x6W on it to break the engine in.