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Compression Calculator Help

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Old Jan 23, 2007 | 09:53 AM
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Default Compression Calculator Help
Cran Cams # 11350 has the following information on their spec sheet.

Cam Timing Tappet @.50

Lift Opens Closes Max Lift Duration

intake (4.0) ATDC 30.0 ABDC 107 206.0
exhaust 46.0 BBDC (8.0) BTDC 117 218


On the compression calculator it ask for this input:

Intake - closing point (degrees) ABDC@.050 Lift plus 15 degrees.

Do I take the 30.0 ABDC add 15? I am lost please help
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Old Jan 23, 2007 | 12:57 PM
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Originally Posted by SoCalErv
Cran Cams # 11350 has the following information on their spec sheet.

Cam Timing Tappet @.50

Lift Opens Closes Max Lift Duration

intake (4.0) ATDC 30.0 ABDC 107 206.0
exhaust 46.0 BBDC (8.0) BTDC 117 218


On the compression calculator it ask for this input:

Intake - closing point (degrees) ABDC@.050 Lift plus 15 degrees.

Do I take the 30.0 ABDC add 15? I am lost please help

Come on GearHeads give me a little help.
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Old Jan 23, 2007 | 09:03 PM
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ttt
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Old Jan 23, 2007 | 09:53 PM
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Yes, you are correct.
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Old Jan 23, 2007 | 10:05 PM
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Originally Posted by dgruenke
Yes, you are correct.

So the number for this input cell with the example provided would be 45 degrees?
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Old Jan 23, 2007 | 10:08 PM
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Yes, but if you are using the KB compression calculator, it tends to give a slightly high reading on the DCR.
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