Stock Narrow band O2 = LEAN

[MPNick]

I'm glad you are proving my points. The cars that come from the factory are allready based tuned. They dont require WB's to do the job. Once modifying a street vehicle IT IS IMPOSSIBLE to get an accurate A/F reading with the stock NB sensor since its only function is for closed loop emmission control.
You asked what race cars used the WB. I anwsered ALL of them.
Because they DO. ON THE DYNO is correct. The first correct assumption Ive heard thus far.
The stock O2 is NOT I repeat NOT used to monitor "exhaust"
It is used to relay information on oxygen content IN THE EXHAUST thru burned Hydrocarbons ONLY. It doesnt know the difference between 14.0 to 10.0. As a matter of fact you could be running so rich as to be misfiring and you O2 will read lean. Because it is only capable of reading OXYGEN. Not raw liquid fuel.
Another point , WHY are you bringing up race engines? We are talking about tuning our street vehicles to be efficient, powerful and reliable. The only way to be accurate is to tune via WB. Period.

If you like I can post hundreds of links that can give you all the info you like on WB research and develoment. That way you can clear up some of your thoughts.

You keep talking about race cars. I am posting fact about race cars. I said to tune on the street with the stock O2 is fine. Use a real WB on the dyno.

I do not need 100 links, just the one that has a race car with a WB controling fuel like you say.


Thanks again


Later.........Nick

 

[perfworks]

Oh my god your giving me a headache. Please refrain from posting in my thread.

 

[perfworks]

If anyone else has any relavant questions or comments please post them and I will be happy to help answer them

 

[Vampyre]

thhis is all very interesting. i got one question if ya goin to wb what do ya have to do besieds gettin the sensor i am new to this stuff

 

[acidbug]

just started reading this thread. perf..... i have an autometer a/f gauge installed and im always reading that im running rich by like 2 or 3 green bars. when i spray it drops down into the orange (perfect range). if i get a wbo2 will these readings change? will i be shocked and see im running lean when i spray? will the autometer be accurate enough to read the change?

Uh...it's hard not to get the mixture right w/ a wet kit..b/c you have jets that have been designed to give you the right mixture...When i was shooting..my autometer...would read all the way rich..though!

Chas

 

[igdrasil]

I love my Greddy A/F along with the EGT!

As I said before: *I* would only use the wideband on the dyno **IF** you can tune your car. Not needed on our cars if you dont have a Standalone or a piggyback,

IF you are using your stock ECU, plug the wideband on the dyno...once you get it right, check your EGTs... its up to the EGTs to stay in the range.

IF your are using a standalone, tune it with a wideband, once you have the timing where you want, adjust fuel, after that, do fuel adjustments on the streets If the EMS is able to adjust LIVE, to get the EGTs on the right spot.

Thats only my personal opinion, thats what I would do with my car.

 

[Equinox]

I'm running N/A at the moment and I used a wideband on my car while Dynoing it, read a max a/f of a horribly high 17.4
Now tell me N.A Cars don't need WB tuning =P

 

[acidbug]

I think what idgrasil was trying to say..is that w/ a stand alone..and piggy you have the abitlity to adjust the timing & fuel..But w/ n/a applications..there is no way to tune..so it don't matter anywayz!