Finishing up install of a ZDZ80RV to replace my DLE85 on a Ziroli size P51. The JMB Pitts type muffler required extensive cutting of the cowl side. The ZDZ has a narrower exhaust flange than the DLE85 so engine with a unmodified JMB muffler fit very well with no cutting of cowl for muffler. I did tilt engine about 5 degrees to help.
I flew with a 26/10 2-blade Xoar but will be trying the Biela 23/10 4-Blade
Last edited by dmyers0403; 07-31-2016 at 06:02 PM.