MotorVac CarbonClean1000 - Manual (Page 26)

    2012 MotorVac, Inc.
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Fuel Requirement vs HP
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 270 280 290 300 310
Horsepower
F
u
e
l
R
e
q
u
ir
e
d
(
L
P
M
)
Naturally Aspirated
Forced Induction
Engine Fuel Flow Requirement
The following graph uses the brake specific fuel consumption (B.S.F.C.) method to
estimate the fuel requirements of an engine. Brake specific fuel consumption the
amount of fuel being consumed divided by the amount of power being produced.
Typical values for B.S.F.C. for naturally aspirated and forced induction cars were used
to estimate values indicated on the chart below.
Leakdown Test
1. Turn the regulator counterclockwise to set the machine pressure to zero.
2. Open both valves on the manifold.
3. Start engine until the fuel line pressure stabilizes, then turn off the engine.
4. Observe the reading on the unit’s vehicle fuel pressure gauge. If the pressure
drops after 5 minutes it indicates a leak.
Deadhead Test (Manifold connection only)
1. Turn the regulator counterclockwise to set the machine pressure to zero.
2. Start the engine and allow it to idle.
3. While observing the CarbonClean 1000 fuel line pressure gauge momentarily
close then open the fuel rail ball valve on the manifold. This will give you the
pump deadhead pressure.