Non-wideband A/F gauges useless
I've been researching many things for my turbo project and I came across this site with a do-it-yourself A/F meter. http://www.scirocco.org/tech/misc/afgauge/af.html Notice at the bottom there is a listing of voltages-to-A/F values, and they make perfect sense to me. The typical O2 sensor reads from 0-1v, and according to this guy .5v is 14.7:1 A/F. That would read out "ideal, good, stoich" etc on your gauge. 1v is around 12:1, which is still lean for forced induction. That would read "rich" on your gauge. So for us guys who take an N/A car and slap on a turbo, don't expect an off-the shelf A/F gauge to be any use to you. I'm quite sure some of you know this, but I'm throwing it out there for us turbo newbies. For the N/A guys I bet the typical A/F gauge works perfectly fine. I guess the FI guys need a wideband. Discuss! :D

Wouldnt it be easier just to buy a good wideband or am I missing something here.

^^^^Werd.

Wow you completely missed the point of my post. I'm trying to steer people away from the cheapo A/F gauges who are FI. YES for crying out loud buy a wideband.

I hear ya man lol.. SOME people will never learn tho its sad :(

Mine isn't totally useless but I have an EGT gauge to help out.

i like the pretty lights...... of my real wideband..

yeah...anything fi...especially turbos....really need widebands.....but, i guess a narrow would be better then nothing....not by much though....

a wideband is a must. no questions asked.

THe narrowband A/F gauges are just a pretty light show. Whether you are NA, Supercharged, or Turbo they are totally worthless. Wideband or bust.

^ lol Exactly.

Buy an EGT gauge and pyrometer.....