04-19-2009, 06:41 PM | #11 |
3v's are slow
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I agree with that statement as well
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2009 Porsche Carrera S 2008 ///AMG C63.. Eurocharge Tune. RIP 2019 AMG GLC43..wife's 03 F250 SD.. Edge Evo, AFE Stage 1 CAI 08 GT. JBA axle back, FRPP springs, FRPP swaybars.. daughter's 01 Cobra vert... wife's I need a new toy |
04-19-2009, 09:01 PM | #12 |
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duration is a number thats machined into the lobe, all a rocker arm is, is a lever on a fulcrum. It just just a tool of leverage. Whether its being pushed open .555 or .585. The pivot point is all that is changed from one ration to another. If you move the pivot point forward or backwards, all you do is change how far it opens, not how soon it opens.
anyways, im not arguing,
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04-19-2009, 09:20 PM | #13 |
3v's are slow
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I guess it depends on which duration is being referred to. Adv duration (useless info) or actual duration at .050
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2009 Porsche Carrera S 2008 ///AMG C63.. Eurocharge Tune. RIP 2019 AMG GLC43..wife's 03 F250 SD.. Edge Evo, AFE Stage 1 CAI 08 GT. JBA axle back, FRPP springs, FRPP swaybars.. daughter's 01 Cobra vert... wife's I need a new toy |
04-19-2009, 09:32 PM | #14 | |||
Trunk Monkey
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Quote:
Quote:
Quote:
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04-21-2009, 09:40 AM | #15 |
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Yes...the increased ratio affects not just the amount, but the speed of the opening too... gross duration is still the same and is determined by the lobe. Duration at any measured valve lift will be more with a higher ratio rocker on a given lobe.
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