This is a PITTS-style muffler for the O.S. FS-91 Surpass and the FS-70
Surpass engines. A Pitts muffler is an IN-COWL muffler for side mount engines.
Two exhaust tubes will direct the flow of the exhaust gas downward and
(hopefully) out the back of the cowl. This muffler is equipped with a pre-
heater coil for a smoke system (It is part of the muffler body)
Features:
Holds muffler inside the cowl for better scale looks
Includes Pre-heater coil for smoke system
All aluminum construction for low weight
Fits O.S. 91 and 70 Surpass engines
Includes:
Muffler with pre-heater coil
Pipe nut/adaptor (screws into cylinder head of the engine - adapts muffler
to engine). Slimline calls this a mounting stud.
Locking collar for firmly attaching muffler to pipe nut/adaptor (w/4-40
screw)
Includes (continued)
Safety bracket with a 10-32 X 1/2" screw to attach to muffler (muffler is
already tapped for this screw)
A 10-32 pressure fitting for running muffler pressure to fuel tank
A 10-32 pressure fitting is installed for the smoke fluid inlet
Specifications:
Muffler Body Diameter: 1-7/16" (including pre-heater coil).
Length of muffler body: 4-7/8"
Exhaust tube diameter: 1/2"
Exhaust tube length: 2-3/4" (can be cut to fit)
Notes:
Slimline makes three other Pitts mufflers for the O.S. 70 & 90 Surpasses:
SLIG4002 - Pitts muffler WITHOUT a smoke coil
JBN 2.13.94 *8)
Updated 3/14/02dew
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