light flywheel counter weight 13b
Ok, here is one that has me stumped.
I have a '85 GSL-SE 13b and the CenterForce light weight steel flywheel. Says to install the automatic counter weight from my engine model/year. Well there was no automatic '84-'85 13b cars produced. Anybody has a acurate answer for this one? Thanks, |
I'm not 100% sure but I believe you can use the counter-weight from the 86-88 cars.
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yea, it should work. same rotor weight, same compression ratio (on NA)
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Well according to MazdaTrix the 86-88 rotor weight lighter than the 84-85 13B.
13B 84-85 compression: 9.4 Wt. Grams: 5253 Wt. Lbs: 11.58 13B N/T 86-88 compression: 9.4 Wt: grams: 4553 Wt. Lbs: 10.04 although the Rx-4 rotors were the same weight the flywheel was a lot heavier, so the would mean the front counterweight would be bigger too. 13B 74-78 compression: 9.2 Wt. grams: 5253 Wt. Lbs: 11.58 John |
John,
I just picked up a light flywheel from a GSL-SE for myself, and the casting number on the counter weight is 1029A. I hope that is helpful ~ JEB |
JEB, actually after reading your post, it got me thinking.
I pulled out my old Rotary Engineering catalog and for counter weights it list: '74- '85 13B .........1029-11-751A BINGO, its a match, now I need to find a Automatic Rx-4 counter weight. thanks John |
Isnt it great how this works
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