Im getting a fact new O470R for my 182P. Im considering having the cylinders ported and polished and the pistons balanced by lycon...my mechanic whom i trust says if any aircraft engine will respond to this its O470 520 and 550...lycon over the phone has told me i can expect around 30hp out of the job and a very smooth engine. They also agree the larger cont. engines like port and polish over lycoming and smaller continentals. Anyone have experience with this??
My mechanic has shown me 2 dyno reports on O470R with port and polish at 255hp@2650rpm and 504# tq. the other was 263hp@2650rpm and 520#tq. only polish no other mods done, engines went into 182's and ive spoken with the pilots they love them...
Any experience here with this guys...appreciate it
Ive considered pponk and IO550 520 and IO470 for me the fact engine makes more sence and cents as the injected motors are $$ to put in the 182 airframe! Im just looking for the 230hp maybe just a tad more and really just a reliable smooth rig!!