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| When does the intake valve open with a Stock Cam https://slantsix.org/forum/viewtopic.php?t=8424 |
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| Author: | relic-lover [ Sun Feb 15, 2004 6:59 pm ] |
| Post subject: | When does the intake valve open with a Stock Cam |
The Slant racing manual said - "The best production cam available for the slant six engines was used in the 1971-1977 engines. This cam (PN 3512639) has a 244 degree duration, 26 degree overlap and a lift of .406" on the intake and .414" on the exhaust. " It does not tell at what degree of timing the intake opens - Has anybody measured the valve events on the stock Cam ? I would like to compare the "effective compression ratio" of the stock cam and a couple that are canidates for a 170 build. This is to help determine what static compression ratio to shoot for. |
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| Author: | Doctor Dodge [ Sun Feb 15, 2004 9:43 pm ] |
| Post subject: | |
Here are the events (in degrees) taken @ .050" lift: Intake opens @ 8 ATC, closes @ 26 ABC, duration = 198 Exhaust opens @ 33 BBC, closes @ 10 BTC, duration = 203 DD |
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