O2s...

[GNBeswick]

Ive had a rich condition for a while, and I finally got it cleared up a little while ago. The blms were always around 110, now they sit at 128-130. My 02s have always seemed to be in the 800s though. I hear alot of guys saying that 02s should be in the 700 range, but mine have never been that low. What Im wondering is, is that the ideal range for the intercooled cars? Do our hotair cars have a different ideal range, or is something just up with mine? WOT is about 850, and changing fuel pressure hasnt seemed to do much for me. If my 02s arent in the right range, what would be causing them to be off?

 

[SLOW_85]

O2 sensor readings will just give you a ball park figure.
Unless you make a big fuel pressure change,
reading won't change much.
Really need a egt to see exhaust temps for really accurate tuning.

 

[cool 84]

I agree, 02s are just a ballpark figure. On the T-type, it read 750s with a couple different 02s and on the dyno we picked up 100rwhp and tq because it was off the charts rich.