L28 Engine Analyzer |
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Data |
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Compression Ratio |
8.3 |
: 1 |
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air density |
0.069 |
lbs/ft3 |
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Displacement |
168 |
cubic inches |
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Injector Flow |
188 |
cc/min |
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Correction Tweaks |
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Ve Corr |
0.7 |
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A/F Corr |
3 |
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Data Table |
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Total Air |
Total Air |
Total Fuel |
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A/F |
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Injector Flow |
Injector Flow |
duty cycle |
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RPM |
RWHP |
FWHP |
drivetrain loss HP |
DT Loss % |
Ve |
CFM |
lbs/hr |
lbs/hr |
BSFC |
A/F |
Corrected |
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lbs/hr |
cc/min |
% |
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2500 |
52 |
69.1 |
17.1 |
24.7 |
0.75 |
90.8 |
376.1 |
25.1 |
0.36 |
18.0 |
15.0 |
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4.2 |
40.6 |
21.6 |
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2800 |
63 |
81.6 |
18.6 |
22.8 |
0.79 |
107.3 |
444.1 |
29.6 |
0.36 |
18.0 |
15.0 |
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4.9 |
47.9 |
25.5 |
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3000 |
68 |
87.3 |
19.3 |
22.1 |
0.79 |
114.7 |
475.0 |
32.8 |
0.38 |
17.5 |
14.5 |
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5.5 |
53.0 |
28.2 |
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3200 |
75 |
95.2 |
20.2 |
21.2 |
0.80 |
125.2 |
518.3 |
37.0 |
0.39 |
17.0 |
14.0 |
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6.2 |
59.9 |
31.9 |
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3400 |
84 |
105.5 |
21.5 |
20.3 |
0.84 |
138.7 |
574.0 |
45.6 |
0.43 |
15.6 |
12.6 |
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7.6 |
73.7 |
39.2 |
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3600 |
91 |
113.4 |
22.4 |
19.8 |
0.85 |
149.1 |
617.3 |
51.4 |
0.45 |
15.0 |
12.0 |
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8.6 |
83.3 |
44.3 |
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3800 |
97 |
120.2 |
23.2 |
19.3 |
0.86 |
158.1 |
654.4 |
54.5 |
0.45 |
15.0 |
12.0 |
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9.1 |
88.3 |
46.9 |
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4000 |
105 |
129.3 |
24.3 |
18.8 |
0.87 |
170.0 |
703.9 |
60.2 |
0.47 |
14.7 |
11.7 |
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10.0 |
97.4 |
51.8 |
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4200 |
109 |
133.9 |
24.9 |
18.6 |
0.86 |
176.0 |
728.6 |
63.4 |
0.47 |
14.5 |
11.5 |
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10.6 |
102.5 |
54.5 |
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4400 |
114 |
139.5 |
25.5 |
18.3 |
0.86 |
183.5 |
759.6 |
67.2 |
0.48 |
14.3 |
11.3 |
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11.2 |
108.8 |
57.9 |
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4600 |
117 |
143.0 |
26.0 |
18.2 |
0.84 |
188.0 |
778.1 |
70.1 |
0.49 |
14.1 |
11.1 |
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11.7 |
113.4 |
60.3 |
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4800 |
119 |
145.2 |
26.2 |
18.1 |
0.82 |
190.9 |
790.5 |
68.7 |
0.47 |
14.5 |
11.5 |
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11.5 |
111.2 |
59.2 |
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5000 |
122 |
148.6 |
26.6 |
17.9 |
0.80 |
195.4 |
809.1 |
70.4 |
0.47 |
14.5 |
11.5 |
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11.7 |
113.9 |
60.6 |
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5200 |
124 |
150.9 |
26.9 |
17.8 |
0.78 |
198.4 |
821.4 |
71.4 |
0.47 |
14.5 |
11.5 |
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11.9 |
115.6 |
61.5 |
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5400 |
122 |
148.6 |
26.6 |
17.9 |
0.74 |
195.4 |
809.1 |
69.2 |
0.47 |
14.7 |
11.7 |
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11.5 |
111.9 |
59.5 |
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5600 |
122 |
148.6 |
26.6 |
17.9 |
0.72 |
195.4 |
809.1 |
68.6 |
0.46 |
14.8 |
11.8 |
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11.4 |
111.0 |
59.0 |
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5800 |
121 |
147.5 |
26.5 |
18.0 |
0.69 |
193.9 |
802.9 |
66.9 |
0.45 |
15.0 |
12.0 |
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11.2 |
108.3 |
57.6 |
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Formulas |
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FWHP = 10 + ( RWHP / 0.88 ) |
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Dtloss = FWHP-RWHP |
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Ve= VeCor * (792001.6 * FWHP) / (14.7 * CR *CID *RPM) |
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Airflow(cfm) = (Cid X RPM
X 0.5 X Ve)/1728 |
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Air lbs/hr = CFM * 60 * air
density |
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fuel lbs/hr = Air lbs/hr * A/Fcorr |
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BSFC = FWHP / Fuel lbs/hr |
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Data |
K&N |
Stock |
A/F |
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2400 |
56 |
52 |
18.0 |
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2800 |
68 |
64 |
18.0 |
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3000 |
72 |
68 |
17.5 |
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3200 |
78 |
75 |
17.0 |
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3400 |
84 |
84 |
15.6 |
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3600 |
90 |
91 |
15.0 |
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3800 |
95 |
97 |
15.0 |
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4000 |
104 |
105 |
14.7 |
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4200 |
110 |
109 |
14.5 |
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4400 |
114 |
114 |
14.2 |
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4600 |
122 |
117 |
14.1 |
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4800 |
126 |
119 |
14.5 |
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5000 |
130 |
122 |
14.5 |
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5200 |
132 |
124 |
14.5 |
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5400 |
133 |
122 |
14.7 |
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5600 |
132 |
122 |
14.8 |
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5800 |
131 |
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