Air/Fuel guage

[87gninpa]

i was looking into getting one of these, are they useful? ive heard arguments for both sides. also, how hard are they to hook up in the trs, or are the rather simple??

 

[Reaper]

buy an egt and learn how to use that for WOT tunning. it will be far more benifcial. get one with a peak hold too..

 

[Ormand]

If order to get any accurate info from an A/F gauge, you have to have a wide-band O2 sensor. The stock O2 sensor is a narrow band. IT switches from a higer voltage to a lower voltage as it crosses the design A/F point. Above and below that point, the voltage readings are NOT proportional to the A/F ratio, so the gauge won't display accurate readings above or below about 14.5 to 1. But if it did, what would that info buy you? Unless you have other info to go by, like HP output, knock, EGT, and BSFC, you don't really know what A/F ratio is good, and what is bad. So really, you're just as well off with the EGT readings and the knock gauge, and don't bother trying to measure the actual A/F ratio.

 

[toofastforyou]

air/fuel ratio reading info please?

I just installed an air/fuel ratio gauge in my car last week, but haven't had a chance to drive the car since due to bad weather. However, I'm wondering what kinds of reading should I look for? I do not have any base reading, so I'm a bit lost....I just removed my egt gauge to replace it with the air/fuel gauge because the egt goes up and down so fast that if you do not happen to look at it just at the right moment, you are not seeing the highest temperature point the engind was at ...
help anyone, please?...Thanks!
Claude

 

[1987BuickGrandN]

AEM UGEO Wideband

The answer to all your problems with A/F:

Gauge-Type Wideband UEGO Controller

AEM’s Wideband UEGO Controller is also available in a gauge that includes a single-channel analog output with a Bosch O2 sensor in one unit!

AEM’s Gauge-Type Wideband UEGO Controller features an LED readout and sweeping LED “needle” that changes colors as AFR changes from rich to lean. The unit’s 52mm (2-1/16”) gauge housing fits in most gauge pods and can be remotely mounted virtually anywhere. No laptop required for monitoring!

Key Features:


Bosch sensor included!

24 Color-coded LED display lights provide immediate reference to engine’s air/fuel ratio (AFR) or Lambda

Integrated three-digit display reveals AFR or Lambda in real time

User-programmable 0-5v analog output included for use with data loggers and ANY engine management system

Ideal AFR monitoring tool for carbureted applications and engine dynamometers

Does not oscillate AFR like narrow band sensors

Serial data stream included for output of AFR (RS 232)

Accurate to 0.1 AFR

http://www.aemintakes.com/product_ems.asp