I can't remember exactly but i think the Soarer 1JZ (JZZ30) had a 100A alternator and the JZX81 had 90A. I'm going from memory though, so don't quote me.
Edit: This is where i got my info...
JZX81 - 90A http://www.toyodiy.com/parts/p_J_199...TPVZ_1903.html
JZZ30 - 100A http://www.toyodiy.com/parts/p_J_199...CPVZ_1903.html
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