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TEST DATA SHEET |
DATE |
11/18/09 |
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TEST
DESCRIPTION |
INTAKE #2 CRAWFORD 4 PORT HEAD FOR MODEL A FORD |
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IN.1 VALVE DIA |
1.700 |
SQ. IN. |
2.178 |
STEM DIAMETER |
0.341 |
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IN.2 VALVE DIA |
1.383 |
SQ.IN. |
1.411 |
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COMBINED VALVE AREA: |
3.589 |
SQ. IN. |
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ORF. FLOW @
25" |
249.96 |
TST.CORR.FACTOR |
0.952
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VALVE L/D
RATIO |
0.050 |
0.100 |
0.150 |
0.200 |
0.250 |
0.300 |
0.350 |
0.400 |
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INTAKE VALVE
LIFT |
0.179 |
0.359 |
0.538 |
0.718 |
0.897 |
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CORR FLOW
RANGE IN. |
034.28 |
068.17 |
143.77 |
284.69 |
426.56 |
567.47 |
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TEST NUMBER |
1.000 |
2.000 |
3.000 |
4.000 |
5.000 |
6.000 |
7.000 |
8.000 |
9.000 |
###### |
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TEST PRESSURE |
28.00 |
28.00 |
28.00 |
28.00 |
28.00 |
28.00 |
28.00 |
28.00 |
28.00 |
28.00 |
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IN. LIFT |
0.089 |
0.179 |
0.269 |
0.359 |
0.448 |
0.538 |
0.628 |
0.718 |
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FLOW RANGE |
143.77 |
143.77 |
284.69 |
284.69 |
284.69 |
284.69 |
284.69 |
284.69 |
284.69 |
284.69 |
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FLOWMETER |
056.00 |
084.40 |
047.00 |
047.70 |
047.80 |
048.00 |
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CHART CFM |
080.51 |
121.34 |
133.80 |
135.80 |
136.08 |
136.65 |
000.00 |
000.00 |
000.00 |
000.00 |
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LEAKAGE CFM |
000.00 |
000.00 |
000.00 |
000.00 |
000.00 |
000.00 |
000.00 |
000.00 |
000.00 |
000.00 |
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` |
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CORRECTED |
080.51 |
121.34 |
133.80 |
135.80 |
136.08 |
136.65 |
000.00 |
000.00 |
000.00 |
000.00 |
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TEST CFM |
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CALCULATED
POTENTIAL HORSEPOWER |
140.55 |
@ |
3596 |
RPM |
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CORR.CFM/SQ.
IN. |
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INTAKE |
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022.43 |
033.81 |
037.28 |
037.84 |
037.92 |
038.08 |
000.00 |
000.00 |
000.00 |
000.00 |
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POT CFM/SQ IN |
11.40 |
22.80 |
34.20 |
45.60 |
57.10 |
68.60 |
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91.80 |
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98.00 |
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%FLOW RATING |
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INTAKE |
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196.78 |
148.29 |
109.01 |
082.98 |
066.40 |
055.50 |
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000.00 |
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000.00 |
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NOTES: |
DUAL INTAKE VALVES, 1.700" &
1.383" |
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4 INTAKE PORTS, 1.300" DIAMETER |
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INTAKE PORT BLENDED INTO DUAL BOWL AREA. |
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3 ANGLE VALVE JOB w HAND RADIUSED SEATS INTO
BOWL AREA |
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INTAKE VALVE: 12 DEGREE BACKSIDE, 3/8"
RADIUS |
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45 DEGREE X .095" FACE, 25 DEGREE BACK CUT |
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INTAKE SEAT:
44 DEGREE X .075", 20 DEGREE TOP CUT, 60 DEGREE UNDERCUT |
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HAND RADIUSED SEAT INTO BOWL AREA |
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RADIUSED ADAPTOR INSTALLED |
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SUPER LOW LIFT FLOW, THEN BECOMES RESTRICTED BY
PORT SIZE |
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