Issue with Stamped Steel Rockers in BB Chevy

Warren Johnson wrote a great article in the Dragster about this years ago, I'll try to find it and post it.

Chris, Hollow valves that are filled with sodium. It acts like a dead blow hammer when it hits the seat. Use something in the hollowed out area. Use your imagination and then get back with me.

[JRyan]

SSDiv6,

I think you mean EXACERBATE, which is "to increase severity or violence", as opposed to EXUBERATE, which is "to make things happy". Also, I've never seen "overfilling a cylinder" as a problem. If that were the case, supercharging wouldn't work.

Jerry

[SSDiv6]

Originally Posted by JRyan

SSDiv6,

I think you mean EXACERBATE, which is "to increase severity or violence", as opposed to EXUBERATE, which is "to make things happy". Also, I've never seen "overfilling a cylinder" as a problem. If that were the case, supercharging wouldn't work.

Jerry

Jerry, thank you for the correction...hard to type after a 15 hour work day!!! In regards to over filling a cylinder as a problem, superchargers and turbos are RPM controlled. Also, they have means to control the excess of pressure by relieving the pressure when they reach certain levels. A normally aspirated engine does not have those means, therefore you use the cam timing events to do so. I spent enough time with the Series I and Series II GM Supercharged engines and saw too many engines blow up when guys changed the settings on the boost control selenoid. Camshafts for supercharged and turbo engines have timing events completely different than the current Stocker grinds, especially in the overlap numbers to alleviate reversion.