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Al,
I was having some trouble with over-rich,
associated with the coupling of the Blue Mountain unit to the Tach signal from
the EC-2. I will explore higher fuel pressure as one parameter as I sort out
other items.
Ed,
The coolant temperature probes are different types,
and I have had difficulty in getting them calibrated to sufficient accuracy to
allow proper comparison. The coolant in probe is the coolant INTO the radiator,
and the coolant out probe is the coolant EXITING the radiator, which you would
expect to be lower (not higher) than the entry fluid. May have to make a
new probe.
By the way, I notice that I get natural circulation
of the coolant through the system after shut-down.
Bill Schertz
KIS Cruiser
#4045
N343BS
----- Original Message -----
Sent: Wednesday, September 24, 2008 9:38
AM
Subject: [FlyRotary] Re: Vacuum
Pulses
I am new at this engine running
thing, having just done the third start/run . I have some instrumentation, and
am enclosing a plot of Manifold pressure and Fuel pressure vs. time for the
latest run. After letting it warm up at ~14 in MP , I started increasing the
power, and you can see that the fuel pressure increases with the MP.
Made one brief excursion to ~5900 rpm, swinging a 76x76
prop.
All tests so far are with the cowl
off, but the ducts are in place.
Bill;
Lookin’
good. It does seem that the fuel pressure is running a bit low, but I
guess it depends on your injectors. Most are rated at a pressure of 40
-43 psi., so when your MAP is 30, the fuel pressure is about 40 psi. I
set my pressure a t 40 with engine off; and it then comes down into the low
30’s when at idle.
Al
G
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