19
10. Trial fit the engine cowling to determine fit and any cutting of clearance
holes. With stock mufflers you will have to cut the cowling, using
headers/pipes/canister mufflers you will likely not need to cut the cowling for
clearance. Determine any cooling holes and cut accordingly. There is no way I
could cover every scenario, so I have only included pictures of my cowling
with stock mufflers. In my setup you will not see any cooling holes in the
cowling, I cut holes in the bottom of the fuselage, these are easily accessed and
can be seen by looking down the pipe tunnel and deciding which cutouts to
use. If you use pipes/canister mufflers then you will have to use the cutout in
the pipe tunnel for access and cooling. See figures 18 & 19 for cowling cutouts.
Figure 18
