The 11lb pulley is on. I tuned the truck to 11.7-1 across the board A/F, for the 8 lb'er. When the maf suddenly sees that much more airflow at any given rpm, it should stay close to 11.7-1, right? Just want to make sure I don't go lean for some reason.

I'm going to go to 4500 rpm logging for KR first, then go to 4500 logging A/F. Then maybe 4800, then 5100, 5400, and so on. Hopefully everything goes well.

 

Ok went out and did some logging. A/F stayed at about 11.5-1 through the run. No KR, running it on my safe tune with shifts at 5200.
Seeing 8psi at 5200, used to see about 5.5psi at 5200.
MAF readings went from 36.7 lb/min at 5200 to 42.43lb/min at 5200! I used to only get 40lb/min at 5800 rpm.
It feels like it is quite a bit faster than it was before even though I'm short shifting it.
I'm taking it up to 5600 for the shifts next.

 

Do you have bigger injectors? I was leaning out at 5200 rpm w 11lbs. put larger injecters in and solve the problem. (w/tuning).I get 11lbs at 4500 rpms

 

Yeah, got 43 lb'ers.

 

sweet, watching with intrest.....