Block deck height

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==Overview==
 
==Overview==
The block deck height is one of the first things that need to be known in order to calculate the compression rsatio of an engine. The following text reveals how to measure the block deck height.
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The block deck height is one of the first things that need to be known in order to calculate the compression ratio of an engine. The following text reveals how to measure the block deck height.
  
 
==Deck heights defined==
 
==Deck heights defined==
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*[http://www.wallaceracing.com/dynamic-cr.php Wallace Racing DCR calculator]
 
*[http://www.wallaceracing.com/dynamic-cr.php Wallace Racing DCR calculator]
 
*[http://www.rbracing-rsr.com/comprAdvHD.htm RSR DCR calculator]
 
*[http://www.rbracing-rsr.com/comprAdvHD.htm RSR DCR calculator]
{{Note1}} Some dynamic compression ratio calculators (like KBs) ask for an additional 15 degrees of duration be added to the IVC @ 0.050" lift point figure. This works OK on older, slower ramped cam lobes, but the faster lobe profiles may need to have 25 degrees or more added to be accurate.<br>
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{{Note1}} Some dynamic compression ratio calculators (like KBs) ask for an additional 15 degrees of duration be added to the IVC @ 0.050" lift point figure. <br>
  
{{Note1}}If the intake valve closing (IVC) point isn't known, it can be calculated:
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{{No
# Divide the intake duration by 2
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# Add the results to the lobe separation angle (LSA)
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# Subtract any ground-in advance
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# Subtract 180
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This result does not need to have any amount added to the IVC point, like the KB calculator calls for.
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<br><br>
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[[Category:Engine]]
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[[Category:GM]]
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[[Category:Undeveloped articles]]
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[[Category:Undeveloped Engine articles]]
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Latest revision as of 08:06, 8 January 2025

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