What should a general O2 reading be at WOT on an LT1 for rich or lean?
This if course is when the O2 reading is pretty much static. I know a WB is really the way to go but I'm trying to get a rough idea of where I'm at.....for instance on my turbo Buick you try to target an optimal .780mv for most power..much above 810mv and you are considered rich.
Just wondering what it should be on the LT1 car, currently my WOT blasts are resulting in O2 readings around 920mv.

 

Depends on a lot of different things. (such as temperature, individual setup, etc), but typically, you want to see them around 920 or so (on an internally modified N/A car). On stock or close to stock cars, that is a bit lower. (885-900)

 

Dittio. Low 900s is where I made most power with mine. On a wideband that equated to high 12:1 range

 

Cool, thanks for the info, so my 920 was about right...now I need to figure out another reason why I'm getting 6-7 degrees of knock at WOT with 93 gas and I've already removed 2-3 degrees of timing from the stock tables once before when it was getting knock.

 

Mabey it's false?

 

Could be, I'm going to fill it with some 101 gas and put a fuel pressure gauge on it and make sure everything is cool there.