Air/fuel gauge
#1
13b P-port on a budget
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Air/fuel gauge
Dont have the money for a wideband and got a air/fuel gauge for cheap but dont know what O2 sensor to use so that when i do get a wideband i can us it for that to.
#7
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IMO the best of the affordable sensors is Innovate. I've used PLX and NGKs new one and like the Innovate the best.
http://www.fordmuscle.com/archives/2...tout/index.php
http://www.fordmuscle.com/archives/2...tout/index.php
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#8
Rotary Enthusiast
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The cheaper narrow band A/F meters are not worthless when tuning a carbureted N/A rotary for power. Since the N/A engine can tolerate a pretty wide A/F ratio, the cheaper meters can get a person close, especially if they have done a carb swap and are way off in venturi size and jet sizes. I have been able to tune my road race engine close enough with a cheap narrow band A/F meter that when I went to the dyno and used their wide band A/F meter, I was only one little jet size away from maximum power perfection. I do not tune for gas milege. Go to a parts store and ask them what their cheapest O2 sensor is.
#9
You might want to consider Dual EGT as an alternative to WBO2. EGT not only gives you a good, linear indication of fuel mixture but also feedback on ignition timing. And having one probe per exhaust primary tells you the balance of combustion between rotors. This is not nearly as important on a non-turbo, but a good feature regardless. EGT is also more robust in the long-term if you take care to keep the wire insulation from melting and relieve the connections (good practice with any setup).
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