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Dave, a though occurred to me. Since you do know the
weight of the rotors for each compression and year (see Mazdatirx chart below),
if any one had the counter weights for a know year, I imagine there is a
proportional ratio between rotor weight and counter weight. In other
words, the lightest rotors should take the lightest counter weights.
Heaviest rotors the heaviest counterweights. In fact if you had two data
points for two different compression rotors you could probably come close to
figuring out the third counter weight weight.
Just a though.
Ed A
| Engine |
Year |
Compression |
Weight (Grams) |
Weight (Pounds) |
| 12A |
76-82 |
9.4 |
4603 |
10.15 |
| 12A |
83-85 |
9.4 |
4353 |
9.60 |
| 13B |
74-78 |
9.2 |
5253 |
11.58 |
| 13B |
84-85 |
9.4 |
5253 |
11.58 |
| 13B N/T |
86-88 |
9.4 |
4553 |
10.04 |
| 13B Turbo |
86-88 |
8.5 |
4553 |
10.04 |
| 13B N/T |
89-92 |
9.7 |
4328 |
9.54 |
| 13B Turbo |
89-92 |
9.0 |
4328 |
9.54 |
| 13B T/T |
93-95 |
9.0 |
4328 |
9.54 |
|