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Old 05-14-2008, 01:49 PM   #5 (permalink)
Daox
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Location: Germantown, WI
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CM400E - '81 Honda CM400E
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If it were my car I'd probably just use a scangauge since it can do pretty much everything... However, since you reeeealy want the tach I'd probably go with the same gauges Metro said if your planning on using pulse and glide and doing aerodynamic modifications. The ammeter is a good choice, but it doesn't really need to be a permanent gauge once you get a feel for what the different accessories pull amp wise. With the scangauge I also wouldn't bother with a vacuum gauge. I'm not sure about the 1NZ-FE (yaris engine), but my 1ZZ-FE (matrix engine) stays in closed loop just about 100% of the time. Wideband is way overkill (and expensive) IMO unless you are tuning an engine.
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