Turned out nice. Fabricated a
bracket out of 2” aluminum flat
stock to mount the Begi regulator to.
Made my own restrictor out of a
plastic pneumatic restrictor. Drilled
out the orifice with a #66 drill bit.
The little restrictor that came with
the Begi was letting too much air
through. Perfect now! Did some
testing with a nitrogen tank and
regulator. After I dialed it in—44
psi base fuel pressure—41 psi @
idle. 48 psi @ 5# of boost—59 psi
@ 10# of boost—68 psi @ 12# of
boost. The Turbosmart 1/1 regulator
controls fuel up to 8# of boost then
the Begi takes over and controls fuel
above 8# at a 5/1. The Begi is infinetly adjustable up to 12/1. The
Begi goes in the fuel return line and
“pinches down” the fuel line, increasing fuel pressure.
Dry Bulb
74
Wet Bulb
59
RH%
45
Bar Press.
30.0
Water Temp 64
Rpm vs. Performance
Injector Size 48 #/hr
3-Blade Riva 15/19 +3mm (15/20.5)
Log Date:
Max Inj. Flow
Tot. Fuel Flow
Crank Hp
05/24/08
54.5 #/Hr
163.5 #/Hr
315 Aprox
80
1454
1526
1500
68.0
60
1300
1274
52.0
50
40
36.0
34.0
40.0
1040
38.0
37.0
45.0
42.0
1100
914
30
900
20
716
10.5
10.3
599
10
0.0
0
11.3
0.0
0.0
13.3
11.7
11.2
Fuel Pressure
Exhaust Gas Temp Degrees F
8500
8000
7500
7000
6000
5000
4000
3000
1800
Engine Rpm
Boost Pressure
700
500
Base Fuel @ 40 psi Max Fuel @ 68 psi Max Boost @ 12 psi Max Net Fuel @ 56 psi Wot A/F 11.7 Max Rpm 8500
A/F Ratio
12.0
11.7
11.8
9.0
6.0
3.0
0.5
0.0
12.4
Exhaust Gas Temp Deg F.
A/F Ratio / Boost / Fuel Pressure @ Rail
70
1526
1490