Engine rebuild/assembly
From Crankshaft Coalition Wiki
m (moved E-Z engine assembly to Engine rebuild/assembly) |
(→Dynamic CR: fix link) |
||
Line 44: | Line 44: | ||
*[http://www.crankshaftcoalition.com/wiki/Carb_vacuum_port_ID#Engine_diagnosis_using_a_vacuum_gauge '''Using a vacuum gauge'''] | *[http://www.crankshaftcoalition.com/wiki/Carb_vacuum_port_ID#Engine_diagnosis_using_a_vacuum_gauge '''Using a vacuum gauge'''] | ||
+ | ==Static CR== | ||
+ | [http://www.wheelspin.net/calc/calc2.html SCR] | ||
+ | ==Dynamic CR== | ||
+ | *[http://www.wallaceracing.com/dynamic-cr.php Wallace Racing DCR calculator] | ||
+ | *[http://www.empirenet.com/pkelley2/DynamicCR.html Kelly DCR calculator] | ||
+ | *[http://www.uempistons.com/calc.php?action=comp2 KB/Silvolite DCR calculator] | ||
+ | *[http://www.rbracing-rsr.com/comprAdvHD.htm RSR DCR calculator] | ||
+ | {{Note1}} Some dynamic compression rtatio 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. | ||
+ | |||
+ | {{Note1}}If the intake valve closing (IVC) point isn't known, it can be calculated: | ||
+ | # Divide the intake duration by 2 | ||
+ | # Add the results to the lobe separation angle (LSA) | ||
+ | # Subtract any ground-in advance | ||
+ | # Subtract 180 | ||
+ | This result does not need to have any amount added to the IVC point, like the KB calculator calls for. | ||
+ | |||
+ | <br><br> | ||
[[Category:Undeveloped articles]] | [[Category:Undeveloped articles]] | ||
[[Category:Undeveloped Engine articles]] | [[Category:Undeveloped Engine articles]] | ||
[[Category:Engine]] | [[Category:Engine]] |