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01-26-2009 #1
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- Dec 2002
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Accel Thruster DFI - Narrow vs Wide O2
Considering updating my Gen VI to a Accel Thruster System - either 77010 or 77010W - looking to better understand the difference between narrow (77010) vs wide band (77010W) O2. Mainly considering the 77010 - based on programmers recommendation.
Any input would be appreciated.
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01-26-2009 #2
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A WB is the only way to go if you want to tune it yourself or run non-stoich AF ratios.
1967 Firebird Convert, Fuel Injected 462 ci, TKO 600
http://1967firebird.atwebpages.com
03-06-2009 #3
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- Mar 2009
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as an accel dealer/installer I agree the wide band is the only way to go.. let me know if you need a good guy price on a kit... mark
03-07-2009 #4
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We sell and install Accel and FAST. Only Wide band, almost no reason to go FI if your not going to take davantage of the WB capabilities.
The Thruster is a great package, and a bargain. We run one of the first Thrusters on Project EmptyNest
03-18-2009 #5
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Spoke to Jobe at Turbo People yesterday - said that I can go without the wideband as part of the Thruster - as he has a handheld. Curious does the wideband only for the programming aspect - or does it play a roll while operating the vechile?
03-18-2009 #6
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It plays a HUGE roll in the operating of the engine. With a wide band, the O2 can correct for stmosphere changes and enrich and lean up to 20%. Ever going to tavel ourt of town? Ever going in the mountains? Every going to drive on a rainy day?
Trying to save a few bucks here make no sense at all. might as well by a ggod carb for it. That is about what you will have.
03-18-2009 #7
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- Kettering, OH
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A WB also lets you run non stoich AF ratios. So you can run a bit lean at cruise for economy and rich at WOT for max safe accel. Some systems get around the latter by going open loop beyond a certain throttle angle. If it were me, I'd get the WB and Thruster from Frank.
1967 Firebird Convert, Fuel Injected 462 ci, TKO 600
http://1967firebird.atwebpages.com
03-21-2009 #8
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- Aug 2006
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- Houston, TX
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WB O2's are a wonderful tuning aid and I absolutely would recommend getting one - if you do plan on doing any of your own tuning, get one, period.
That said, you're not going to notice any difference in engine operation between a WBO2 and a narrow band with a good tune. Like someone else mentioned, having the WB enables the PCM to correct to non-stoichiometric ratios in your AFR table; to me, it's not an essential feature, and in some cases I would go as far as saying it's a bad idea (I don't even run an O2 sensor, narrow or wideband, unless I'm doing some work on the tune!).
However, I'll say it again - the smart money is getting the WB sensor up front!
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