Quote Originally Posted by Old Guy View Post
You are correct that 417 has the 416 assembly

If you want to get some insight set up a box design in say Winisd


Then:


Sd - Projected area of the driver diaphragm, in square metres.
Mms - Mass of the diaphragm/coil, including acoustic load, in kilograms. Mass of the diaphragm/coil alone is known as Mmd
Cms - Compliance of the driver's suspension, in metres per newton (the reciprocal of its 'stiffness').
Rms - The mechanical resistance of a driver's suspension (i.e., 'lossiness') in N?s/m
Le - Voice coil inductance measured in millihenries (mH) (Frequency dependent, usually measured at 1 kHz).
Re - DC resistance of the voice coil, measured in ohms.
Bl - The product of magnet field strength in the voice coil gap and the length of wire in the magnetic field, in tesla-metres (T?m).


Play with Mms and Bl and view the resulting responses

I would like to see what a 417 assembly could do with a higher mass kit, like a 3154. There may be issues with gap length. One of the 3 million things I likely will never get done.
I've got winISD working on this PC and may actually play with this over the next few days, crappy weather coming for the weekend.

Got any suggestions for remedying the collapsed lifter in my '98 5.7L Vortec?

Actually i don't know if a lifter has collapsed, and i fear it may be a cam issue as this model uses a steel cam(known to sometimes be problematic with disintegrating lobes) and hydraulic roller lifters. I can't pass NYS inspection with a misfire code on the log, and i'd like to fix it right rather than ask my buddies to "cheat" it through.