Vmaxattacks
Well-Known Member
Maybe this can be part of the sticky..:eusa_dance:
Anyway, I wanted to do some calculated comparison between the 49-state needle, 5EZ43 & the California counterpart, 5EZ50. I used my RAM optical comparitor here in the lab to measure the "business end" of the two and I then dialed in all of the calcs. The 49-state versions are fatter and with a less acute slant height than the Cali needles meaning that they will tend to be a tad leaner overall. I guess that one could use the Cal needles to fatten up the mid-range without the need to add a shim to your existing 49-state needle. Just an observation.
Here are the results:
The 49-state needle has a tip diameter of .044" a dimension of .095" right after the taper whereas the California one has a tip of .041 with the same .095" base.
The 49-state has a tapered height of .322" whereas the Cali needle has a height of .341.
The following are rough but good enough for comparison...
s = slant height
V = volume
L = lateral surface area
B = base surface area
A = total surface area
5EZ43: (49-state)
s = 0.32548 in
V = 0.00076 in3
L = 0.04857 in2
B = 0.00709 in2
A = 0.05566 in2
5EZ50: (Cal)
s = 0.34429 in
V = 0.00081 in3
L = 0.05138 in2
B = 0.00709 in2
A = 0.05847 in2
As you can see by the "slant height" and the "volume" calcs, the California needle lends itself to less volume over a given length which in turn will yield a broader and richer mix across the board.
Thought this might be of some use to you all..
..Bud
Anyway, I wanted to do some calculated comparison between the 49-state needle, 5EZ43 & the California counterpart, 5EZ50. I used my RAM optical comparitor here in the lab to measure the "business end" of the two and I then dialed in all of the calcs. The 49-state versions are fatter and with a less acute slant height than the Cali needles meaning that they will tend to be a tad leaner overall. I guess that one could use the Cal needles to fatten up the mid-range without the need to add a shim to your existing 49-state needle. Just an observation.
Here are the results:
The 49-state needle has a tip diameter of .044" a dimension of .095" right after the taper whereas the California one has a tip of .041 with the same .095" base.
The 49-state has a tapered height of .322" whereas the Cali needle has a height of .341.
The following are rough but good enough for comparison...
s = slant height
V = volume
L = lateral surface area
B = base surface area
A = total surface area
5EZ43: (49-state)
s = 0.32548 in
V = 0.00076 in3
L = 0.04857 in2
B = 0.00709 in2
A = 0.05566 in2
5EZ50: (Cal)
s = 0.34429 in
V = 0.00081 in3
L = 0.05138 in2
B = 0.00709 in2
A = 0.05847 in2
As you can see by the "slant height" and the "volume" calcs, the California needle lends itself to less volume over a given length which in turn will yield a broader and richer mix across the board.
Thought this might be of some use to you all..
..Bud