Miata Mailing List: October 1998, Message #258

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I am using the Racing Beat oversized pulleys for the alternator and water
pump, which do the same thing. I have not had any problems with them at all.
No undercharging the battery or over heating the water.

-----Original Message-----
From:	Loercher, Scott [SMTP:SLoercher@BH-BA.com]

Has anyone tried using an underdrive crank pulley on the Miata?
Unorthodox Racing  (http://www.unorthodoxracing.com/specials.html)  has
them on sale for $110 (1.6L) and $120 (1.8L).  Those that tried them,
did/do you like it?  The product sounds like it makes sense, reducing
the revolutions and weight...those stock things are heavy.  They also
list a pulley for just the alternator and water pump belt, but after
talking to them, they are not planning on producing it...yet.  I was
told the addition of the A/C pulley on the aluminum underdrive pulley is
negligible.  Any thoughts?

No affiliation with Unorthod...  yadda, yadda, yadda.

Scott Loercher

Did you install yours yet Skip?