Earlie A's latest activity
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EEarlie A replied to the thread Valvetrain Geometry.The set-up is ball-ball pushrod and cup adjuster. I ran the initial tests with the adjuster 1 turn from the seated position. This...
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EEarlie A replied to the thread Valvetrain Geometry.This ended up being a surprising test. The idea was to compare actual valve motion of a stock head (ended up being ProMaxx) to the same...
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EEarlie A replied to the thread Valvetrain Geometry.I have some data using a stock Speedmaster head with PRW 1.6 rocker arm. Test was done to compare the actual valve lift of an...
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EWell, dang near every V8 Mopar made has bad valve train geometry and they didn't break. But neither did they push the boundaries...
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EAgree. And all are compromises at one end or the other. I like the idea of controlling the valve (acceleration, deceleration, on/off the...
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EEarlie A replied to the thread Valvetrain Geometry.RRR, you have hit on the very reason I posted this thread to begin with. For most applications the bad geometry may not be ideal, but...
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EEarlie A replied to the thread Valvetrain Geometry.I'm not disagreeing with you or Mike either. As 92b mentioned earlier, correct geometry depends upon where you place the priorities...
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EEarlie A replied to the thread Valvetrain Geometry.Jesel still uses it something close to the 2/3 method. Billy Godbold's book is from 2023, correct? I'm not saying they are correct...
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EEarlie A replied to the thread Valvetrain Geometry.So here's the interesting part of all of this. I've seen it posted many times here and on other forums that bad geometry breaks parts...
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EI think the answer to that question is, it depends on the application and even then there may be some disagreement depending on where...
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EEarlie A replied to the thread Valvetrain Geometry.It would seem to me that a mid-lift geometry on both sides of the rocker arm would be the 'best' place to start for most applications...
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EEarlie A replied to the thread Valvetrain Geometry.I should have used different terminology since a fulcrum is really the point or axis of rotation. The centerline of the rocker shaft...
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EEarlie A replied to the thread Valvetrain Geometry.Here's pictures of the PDFs and a picture of all the rockers I have at the shop. Top is Speedmaster aluminum with what looks to be...
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EEarlie A replied to the thread Valvetrain Geometry.I’ll post some pictures when I get back to the shop. It may be later today but could be tomorrow.
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EEarlie A replied to the thread Valvetrain Geometry.Here's an old thread about broken HS rockers. Look at the picture in post #6. That's 3/8" wide bearings. Broken rocker arms two...
