see the AFR? looks normal if it is a NA car.
but mine's supercharged!

how does the AFR get this high. both of my fuel pumps are working. I see fuel pressure on my gauge and it reads 100+psi at redline. As you can see from the dyno before this, I was getting an 10:1. But now I am getting this messed up flat curve. The only fuel related mod that I add was 1-step colder plugs. I use the copper one instead of the plantium one. Should I switch back to stock heat range?


what's the problem??? please help

 

Bump for this kid.

 

lcf

how have you been?

thx for bumping it up for me. I got some good people help me on this issue in the Sc/TC forum. I just want to see if people in general forum can help me.

I am also trying other car/engine forums.

thx for bumping it up for me

 

more dyno graph for your viewing pleasure.

1.this is all the lean run I had on Monday. Two runs were cut off due to pinging.



2.2.this is the lean run vs rich run. I ask them to make the window bigger so we can see the AFR better. Seems like both AFR are parallel.