i like to know something. which is better? wideband o2? afc?
-
sr_powered
- Posts: 42
- Joined: Tue Jan 31, 2006 8:05 pm
- Car: 1990 Nissan 240sx SE
i like to know something. which is better? wideband o2? afc?
whats the best i can get out of one of these if i were to only go with one of them? would the wideband o2 be better or the afc or safc? this is my first with a turbocharged engine. like to know some info before buying anything at all. thanks
Re: i like to know something. which is better? wideband o2? afc? (sr_powered)
That's like asking which is better, an aftermarket downpipe or an egt gauge.
The question makes no sense.
AFC = air/fuel controller. SAFC = "super" air/fuel controller - an apexi product. When most people say AFC, they are talking about the apexi a/f controllers. They are used to fine tune your air/fuel mixture until you reach your target ratio. There are other air/fuel controllers on the market though (tons of them actually) ranging from homemade piggyback (piggyback meaning it's tricking your stock ecu into thinking its receiving different signals - SAFC is a piggyback) kits to standalone (no stock computer interference) fuel controllers.
A wideband O2 is a sensor to read your air/fuel mixture. These are very good to have for tuning purposes and monitoring your engine's run conditions. Up until recently, most people monitored their air/fuel mixture using the stock, narrowband O2 sensor with a air/fuel ratio gauge (the ever so popular autometer most likely). If you've ever seen one, they probably had lights flying from back and forth on the screen. That's b/c, without getting technical, narrowbands are inaccurate (for a certain range). Widebands are much, much more accurate.
So, basically if you are self tuning your car (like most safc users tend to do), a wideband would be a good idea. With it, you can accurately gauge your a/f mixtures @ whatever rpm and adjust your afc accordingly to achieve your target a/f ratio mixture (usually people shoot for a 12:1 at wot in a turbo car). If you are just planning on rolling your car onto a dyno and having a tuner tune your car, don't bother with the wideband for now since dyno shops have their own widebands in shop. A narrowband a/f gauge would be a good idea at that point though.
My suggestion to you would be to do some more research on each part so that you can better understand what purposes they serve thus allowing your to make your own purchasing decisions.
The question makes no sense.
AFC = air/fuel controller. SAFC = "super" air/fuel controller - an apexi product. When most people say AFC, they are talking about the apexi a/f controllers. They are used to fine tune your air/fuel mixture until you reach your target ratio. There are other air/fuel controllers on the market though (tons of them actually) ranging from homemade piggyback (piggyback meaning it's tricking your stock ecu into thinking its receiving different signals - SAFC is a piggyback) kits to standalone (no stock computer interference) fuel controllers.
A wideband O2 is a sensor to read your air/fuel mixture. These are very good to have for tuning purposes and monitoring your engine's run conditions. Up until recently, most people monitored their air/fuel mixture using the stock, narrowband O2 sensor with a air/fuel ratio gauge (the ever so popular autometer most likely). If you've ever seen one, they probably had lights flying from back and forth on the screen. That's b/c, without getting technical, narrowbands are inaccurate (for a certain range). Widebands are much, much more accurate.
So, basically if you are self tuning your car (like most safc users tend to do), a wideband would be a good idea. With it, you can accurately gauge your a/f mixtures @ whatever rpm and adjust your afc accordingly to achieve your target a/f ratio mixture (usually people shoot for a 12:1 at wot in a turbo car). If you are just planning on rolling your car onto a dyno and having a tuner tune your car, don't bother with the wideband for now since dyno shops have their own widebands in shop. A narrowband a/f gauge would be a good idea at that point though.
My suggestion to you would be to do some more research on each part so that you can better understand what purposes they serve thus allowing your to make your own purchasing decisions.
-
sr_powered
- Posts: 42
- Joined: Tue Jan 31, 2006 8:05 pm
- Car: 1990 Nissan 240sx SE
Re: i like to know something. which is better? wideband o2? afc? (Dori Dori)
thanks bro. just wasn't sure what does what. i will keep doing research on this.
-
iknowyoulike
- Posts: 174
- Joined: Mon Mar 29, 2004 8:41 pm
-
b18turboef
- Posts: 82
- Joined: Thu Feb 16, 2006 9:18 pm
- Contact:
Re: (iknowyoulike)
iknowyoulike wrote:They go hand and hand....can't have one without the other really...IF you want to do it right...