Last year I was seeing 35 degree of advance and no knock wide open throttle and now after the tune I'm seeing 26 with no knock.

Also I'm very very rich, what can I do to adjust these.

Thanks

...Rich

 

ttt

Anyone

 

Are you using LT1 Edit or Tunercat?
Just to be sure what you're asking...are you wanting to add timing and remove fuel at wot?

 

Please give a bit more info.

conditions during runs, what your data showed, etc.

 

I'm using Lt-1 edit and yes I want to advance my timing at wot back to say maybe 33 degrees, and take out some fuel not much, I'm seeing 26 degrees wot, and 1000, 998 O2 settings at wot. I'm a little new at this so is there anything else I need to look at, the car seems fine everywhere else except it is rich everywhere, I reved it up yesterday and blew black stuff all over the front of my buddy's car, at this rate my plugs are going to give up.


Thanks


...Rich

 

First thing is you need to do is disable PE mode. Then run your whole RPM and MAP range in order to see if you in fact are running fine with all your BLM's (128 is perfect). Once that is done, you need to wideband tune. You cannot know anything by our O2's except that you are running a lower AFR than 14.7:1. It sounds like you are rich, but how much is uncertain.


closed loop must be correct before you can start anywhere else.

Ben

 

How do I do all these things, sorry just trying to learn.


...Rich

 

94Blackhawk- Not sure if I understand the disabling PE mode thing...explain that a little more.

Anyways, what injectors are you using? What injector constant are you using? What are your blms in different fuel trim cells?
As 95Blackhawk said, O2's are not a good way to tune a blown car at all. I wouldn't touch the wot fueling unless you've got access to a wideband...too risky in my opinion.
If you want to add timing, add 1 degree at a time in the 90-100map range at higher rpms. Actually, I wonder if that is your wot timing area? Guys with blowers...is that where the ecm will get it's timing for wot? My GN doesn't use map vs. rpm...it uses load vs. rpm so that's kind of new to me...
If you do add timing, watch very closely to knock...blown/turbo cars are more sensitive to knock than a naturally aspirated motor.

Maybe someone with a blower car give you a little help as they'd know more about this than I would.