Collected by: John Harlan email@example.com
I'm trying to find the United Instrument's part number for the appropriate
combination manifold pressure/fuel pressure gauge for an S1S Pitts with an
AEIO360-B4A (180 HP). The T model uses the 6331-H86, but I suspect the
gauge may be different (a different "H" number) for the 200 HP engine,
since the fuel pressure side is calibrated in gal/hour, based on
injector spider pressure.
From John Harlan firstname.lastname@example.org
The instrument used to show fuel flow on lycoming engines is
based on pressure and the number of injectors. With this in mind, the
same gage will work on both engines. The max pressure will be
lower,and so will the "flow" and the HP. Century Inst. Co.
1-800-733-0116, lists 6 gages that will work. P/N K1000-3 is listed
for IO-360-B1B,B1D,B1E, as a 2-18 gph unit. The others are for more or
less flow,or in other units such as PPH and LPH.
As such, the United 6331-H86 is calibrated properly for the 180 and 200.
© Dr. Günther
Email Guenther Eichhorn