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Old 04-14-2011, 04:44 PM   #15 (permalink)
dennyt
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Join Date: Dec 2009
Location: Seattle, WA, USA
Posts: 158

The Adventure Wagon - '94 Subaru Loyale Wagon 4x4
Subaru
90 day: 33.43 mpg (US)

Electro-Monkey - '11 Surly Karate Monkey BMC V2S Front Hub Motor
90 day: 694.1 mpg (US)
Thanks: 31
Thanked 31 Times in 23 Posts
I made an orifice plate for my IACV, out of a dime. Drilled a 3/16" hole in the center, filed the perimeter a bit so it was a tight fit in the inlet line, and voila! "High" idle on warmup is down from 2000rpm to 1100, without the driveability problems of disconnecting the IACV entirely.
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